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XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
October 20, 2003 Ver. 2
! Low Power Consumption ! Maximum Output Current ! Dropout Voltage ! Operating Voltage Range ! VR Output Voltage Range !
: 35A (TYP.) : more than 700mA (800mA limit) : 50mV @ 100mA : 100mV @ 200mA : 1.5V ~ 6.0V : 0.8V ~ 5.0V
! APPLICATIONS
" " " " " "
CD-ROM, CD-R / RW drive DVD drive HDD drive Cameras, Video recorders Portable AV equipment Battery powered equipment
VD Output Voltage Range : 0.8V ~ 5.0V Low ESR capacitor compatible
! GENERAL DESCRIPTION
The XC6402 series are precise, low noise, high current, positive voltage low dropout regulators with built-in voltage detector. They are fabricated using Torex's CMOS process. The series features a voltage reference, an error amplifier, a current limiter, a voltage detector and a phase compensation circuit plus a driver transistor. The output voltage of the LDO and detect voltage of the detector is selectable in 50mV increments within the range of 0.8V to 5.0V. With a low ON resistance driver transistor built-in, batteries can be used until input-output voltage differential is minimal and can accordingly be used for a longer time. The series is also compatible with low ESR ceramic capacitors which give added output stability. The series provides options to the user to select from a variety of circuit features, such as detector monitoring, detector output logic, EN pin input logic, and internal pull-up / down resistance (semi-custom). The IC's internal regulator circuit can be placed in stand-by mode via the EN function (XC6402C series). In the stand-by mode, power consumption is greatly reduced. The XC6402F series offers the option of a delay on the detector output: the delay time can be controlled by the use of an external capacitor.
! FEATURES
Maximum Output Current : more than 700mA (800mA limit) (1.6VWhen monitoring VIN : more than 1.5V Highly Accurate Low Power Consumption High Ripple Rejection Operational Ambient Temperature: Low ESR Capacitor Compatible Ultra Small Packages : 2% : 35A (TYP.) : 60dB (@1kHz) : - 40 ~ 85OC : Ceramic capacitor : SOT-25 (SOT-23-5) : SOT-89-5 : USP-6B * VD: Voltage Detector
! TYPICAL APPLICATIONS CIRCUITS
# XC6402C Series
Rpull-up 220K
! TYPICAL PERFORMANCE CHARACTERISTICS
# Dropout Voltage vs. VR Output Current
XC6402 Series (VR : 3.0V)
CIN 1uF
1 2 3 CL 1uF
VIN VSS
EN
5
1.0 0.9 0.8
CIN=1uF(ceramic), CL=1.0uF(ceramic)
VROUT VDOUT 4
Dropout Voltage Vdif (V)
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0
- 40OC - 25OC - 85OC
# XC6402F Series
1 2 3 CL 1uF EN 5 Rpull-up 220K
CIN 1uF
VIN VSS
0
100
200
300
400
500
600
700
VROUT VDOUT 4
VR Output Current IROUT (mA)
Semiconductor Ltd.
Data Sheet
1
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! PIN CONFIGURATION
VROUT
5
VDOUT
4
EN / Cd 5
VDOUT 4
EN / Cd NC VIN 1 2 3 6 VDOUT 5 VROUT 4 VSS
1
2
3
VIN
VSS
EN / Cd
1 VIN
2 VSS
3 VROUT
USP-6B (TOP VIEW)
SOT-25 (TOP VIEW)
SOT-89-5 (TOP VIEW)
! PIN ASSIGNMENT
PIN NUMBER SOT-25 1 2 5 4 3 3 SOT-89-5 1 2 3 4 5 5 USP-6B 3 4 5 6 1 1 2 PIN NAME VIN VSS VROUT VDOUT EN Cd NC FUNCTION Power Input Ground VR Output VD Output VR ON/OFF Control (C Series) Delay Capacitor Connection ( F Series) No Connection
! SELECTION GUIDE
1. EN Input Logic, Internal Pull-up / down as option SERIES XC6402 * A ~ D XC6402 * E ~ K XC6402 * L ~ P XC6402 * R ~ U CE INPUT LOGIC Active High with pull-down resistance Active High with no pull-down resistance Active Low with pull-up resistance Active Low with no pull-up resistance * : C series
2. VD Sense as option SERIES XC6402 * A, B, E, F, L, M, R, S, V, X XC6402 * C, D, H, K, N, P, T, U, Y, Z VD SENSE PIN VIN VROUT * : C and F series
3. VD Output Logic as option SERIES XC6402 * A, C, E, H, L, N, R, T, V, Y XC6402 * B, D, F, K, M, P, S, U, X, Z VD OUTPUT LOGIC Detect L Detect H * : C and F series
Semiconductor Ltd.
Data Sheet
2
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ORDERING INFORMATION XC6402 123456
PIN NUMBER FUNCTION Denotes Optional Functions : C : EN Function PIN NUMBER FUNCTION Denotes Packaging Types: M : SOT-25 (SOT-23-5)
1
F : Cd Pin
5
P : SOT-89-5 D : USP-6B
2
Denotes Types : As in the chart below. Internally set sequential number relating to output voltage and detect voltage.
Denotes Taping Direction:
6
R: Embossed tape, Standard feed L : Embossed tape, Reverse feed
3
4
VR Setting Output Voltage Range : 0.8V ~ 5.0V Detect Voltage Setting Range : 0.8V ~ 5.0V 50mV increments are available
PIN NUMBER : 2 Types
2
A B C D E F H K L M N P R S T U V X Y Z
EN FUNCTION Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Functional Nonfunctional Nonfunctional Nonfunctional Nonfunctional
EN LOGIC Active High Active High Active High Active High Active High Active High Active High Active High Active Low Active Low Active Low Active Low Active Low Active Low Active Low Active Low -
PULL UP/DOWN RESISTANCE Pull-down Function Pull-down Function Pull-down Function Pull-down Function Nonfunctional Nonfunctional Nonfunctional Nonfunctional Pull-up Function Pull-up Function Pull-up Function Pull-up Function Nonfunctional Nonfunctional Nonfunctional Nonfunctional -
VD SENSE PIN VIN VIN VROUT VROUT VIN VIN VROUT VROUT VIN VIN VROUT VROUT VIN VIN VROUT VROUT VIN VIN VROUT VROUT
VD OUTPUT LOGIC Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H Detect L Detect H
PIN NUMBER 1
C Series
F Series
Semiconductor Ltd.
Data Sheet
3
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function ! PACKAGING INFORMATION
# SOT-25 (SOT-23-5)
# SOT-89-5
# USP-6B
2.0 + 0.15 (0.45) 0.5+0.1 (0.05)
O
(0.27) 0.005+0.002 (0.27)
1
( 0.45)
1 2 3
6 5 4
1.8+0.15
(0.27)
45 O
(0.45) (0.45)
(0.125)
45 O
45
O
45
A
A'
O
(0.65)+0.15 -0.05
0.7+0.03
1
5-0.2+0.05
3 2
4 5
00.1+0.03
0.2+0.05
1
6
1
1
1
1.0+0.1 0.25+0.1
.
0.25+0.1
1
0.5+0.1 0.5+0.1
1.6+0.15
(0.05) -0.005
+0.01
AAA AAA
Semiconductor Ltd.
Data Sheet
4
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function ! BLOCK DIAGRAM
Optional:
Active HIGH with Pull-down R Active HIGH with no Pull-down R Active LOW with Pull-up R Active LOW with no Pull-up R
VIN EN
ON / OFF Control Current Limit
Optional:
VIN SENSE VROUT SENSE
VR Circuit
VROUT
R1 R2
Error Amp. CFB
Voltage Reference
VDOUT
R3
Optional:
Detect H Detect L
Comp. VD
R4
VSS
XC6402C Series
VIN
Optional:
Rdelay VIN SENSE VROUT SENSE
Cd
Optional:
Detect H Detect L
Current Limit
Error Amp. CFB
Voltage Reference
VROUT
R1 R2
VDOUT
R3 Comp. VD R4
VSS
XC6402F Series
Semiconductor Ltd.
Data Sheet
5
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ABSOLUTE MAXIMUM RATINGS
PARAMETER Input Voltage VR Output Current VR Output Voltage VD Output Current VD Output Voltage VEN / Cd Pin Voltage SOT-25 SOT-89-5 USP-6B Operating Temperature Range Storage Temperature Range Continuous Power Dissipation SYMBOL VIN IROUT VROUT IDOUT VDOUT VEN / Cd Pd Topr Tstg RATINGS 6.5 800 VSS -0.3 ~ VIN +0.3 50 VSS -0.3 ~ 6.5 VSS -0.3 ~ VIN + 0.3 250 500 100 - 40 ~ + 85 - 55 ~ + 125 Ta=25OC UNITS V mA V mA V V mW
O O
C C
! ELECTRICAL CHARACTERISTICS
XC6402C Series PARAMETER VR Output Voltage (note 2, 3) VR Maximum Output Current [VROUT(E)>1.6V] VR Maximum Output Current [VROUT(E)<1.6V] VR Load Regulation VR Dropout Voltage (note 4) Supply Current (CA/CB/CC/CD type) Supply Current (CL/CM/CN/CP type) Supply Current (CE/CF/CH/CK type) Supply Current (CR/CS/CT/CU type) VR Line Regulation Input Voltage VR Output Voltage Temperature Characteristics SYMBOL VROUT(E) IROUTMAX IROUTMAX VROUT Vdif1 Vdif2 IDD IDD IDD IDD VROUT VIN VROUT VIN VROUT
Topr VROUT
Ta=25OC CONDITIONS VIN=VROUT(T)+1.0V, IROUT=30mA VIN=VROUT(T)+1.0V VEN=ON(VIN or VSS) VIN=VROUT(T)+1.0V VEN=ON(VIN or VSS) 1mA 4.75V ! VIN=5.75V+0.5Vp-pAC IROUT=30mA, f=1kHz VIN=VROUT(T)+1.0V VEN=ON(VIN or VSS) VIN=VROUT(T)+1.0V VEN=ON(VIN or VSS) VIN=VROUT(T)+1.0V VEN=ON(VIN or VSS) 1.5 MIN x 0.98 (-30mV) 700 500 TYP VROUT(T) 15 E-1 (page 8 ~9) E-2 (page 8 ~9) E-3 (page 8 ~9) E-3 (page 8 ~9) 35 35 0.01 100 70 70 0.20 6.0 MAX x 1.02 (+30mV) 60 UNITS V mA mA mV mV A A A A %/V V ppm / OC
CIRCUIT
1 1 1 1 1 2 2 2 2 1 1
VOLTAGE REGULATOR (VROUT=1.8V)
VR Ripple Rejection Rate
PSRR
-
60
-
dB
3
VR Current Limiter [VROUT(E)>1.6V] VR Current Limiter [VROUT(E)<1.6V] Short-Circuit Current
IRlim IRlim IRshort
700 -
800 800 30
-
mA mA mA
1 1 1
Semiconductor Ltd.
Data Sheet
6
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function ! ELECTRICAL CHARACTERISTICS (Continued)
XC6402C Series PARAMETER VD Detect Voltage (note 7, 8) VD Hysteresis Range (note 7) SYMBOL VDF (E) VHYS VEN = OFF (VIN or VSS) VIN = 1.5V VOLTAGE DETECTOR VIN = 2.0V VD Supply Current IDDVD VIN = 3.0V VIN = 4.0V VIN = 5.0V VIN = 6.0V VDOUT = 0.5V VIN = 1.5V VD Output Current (note 9) VIN = 2.0V IDOUT VIN = 3.0V VIN = 4.0V VIN = 5.0V VIN = 6.0V VD Detect Voltage Temperature Characteristics EN "High" Level Voltage EN "Low" Level Voltage EN "High" Level Current (CA/CB/CC/CD type) SWITCH EN "High" Level Current (CE/CF/CH/CK/CL/CM/CN/ CP/CR/CS/CT/CU type) EN "High" Level Current (CL/CM/CN/CP type) EN "High" Level Current (CA/CB/CC/CD/CE/CF/CH/ CK/CR/CS/CT/CU type) VDF / Topr VDF VEN H VEN L IEN H VEN=VIN=VROUT(T)+1.0V -40OCCIRCUIT
4 4
2
5
4 1 1 1 1 1
IEN H
-0.10 E-5 (page 8~9) -0.10
-
A
IEN L
VIN=VROUT(T)+1.0V, VEN=VSS
-
0.10
A
IEN L
VIN=VROUT(T)+1.0V, VEN=VSS
-
0.10
A
1
(NOTE 1) Unless otherwise stated, VIN=VROUT(T)+1.0V (NOTE 2) VROUT(T)=Specified VR Output Voltage (NOTE 3) VROUT(E)=Actual VR Output Voltage. (i.e. the VR output voltage when "VROUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IROUT value). Vdif={VIN1(NOTE6)-VROUT1(NOTE5)} A voltage equal to 98% of the VR Output Voltage whenever a stabilized VROUT1=IROUT{VROUT(T)+1.0V} is input. VIN1=The Input Voltage when VOUT1, which appears as Input Voltage is gradually decreased. VDF (T) : Specified Detect Voltage value VDF (E) : Actual Detect Voltage value. VD Output Current value of Detect 'L' type equal to current value during detection and that of Detect 'H' type equal to current value before detection. ! MIN : VROUT(T) -30mV, VDF(T) -30mV, (NOTE10) VROUT(T)<1.45V, VDF(T)<1.45V ! MAX : VROUT(T) +30mV, VDF(T) +30mV (NOTE11) EN conditions: XC6402CA / CB / CC / CD / CE / CF / CH / CK type : ON=VIN, OFF=VSS XC6402CL / CM / CN / CP / CR / CS / CT / CU type : ON=VSS, OFF=VIN (NOTE12) VD detect voltage : For VIN Sense version, XC6402CA / CB / CE /CF / CL / CM / CR / CS, only VDF(T)>1.5V type are available. (NOTE 4) (NOTE 5) (NOTE 6) (NOTE 7) (NOTE 8) (NOTE 9)
Semiconductor Ltd.
Data Sheet
7
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402C SERIES DROPOUT VOLTAGE, SUPPLY CURRENT, EN'H/L' LEVEL CURRENT
SETTING OUTPUT VOLTAGE VR OUTPUT VOLTAGE VD DETECT VOLTAGE
E-1
DROPOUT VOLTAGE 1
E-2
DROPOUT VOLTAGE 2
E-3
SUPPLY CURRENT
E-4
EN'H'LEVEL CURRENT (A)
E-5
EN'H'LEVEL CURRENT (A)
(V) VROUT(T) 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 MIN. 0.770 0.820 0.870 0.920 0.970 1.020 1.070 1.120 1.170 1.220 1.270 1.320 1.370 1.420 1.470 1.519 1.568 1.617 1.666 1.715 1.764 1.813 1.862 1.911 1.960 2.009 2.058 2.107 2.156 2.205 2.254 2.303 2.352 2.401 2.450 2.499 2.548 2.597 2.646 2.695 2.744 2.793 2.842 2.891
(V) VOUT MAX. 0.830 0.880 0.930 0.980 1.030 1.080 1.130 1.180 1.230 1.280 1.330 1.380 1.430 1.480 1.530 1.581 1.632 1.683 1.734 1.785 1.836 1.887 1.938 1.989 2.040 2.091 2.142 2.193 2.244 2.295 2.346 2.397 2.448 2.499 2.550 2.601 2.652 2.703 2.754 2.805 2.856 2.907 2.958 3.009 18.0 25.0 27.0 30 50 100 TYP.
(mV) Vdif1 MAX. 700 250 600 500 150 400 300 200 100 100 TYP.
(mV) Vdif2 MAX. 800 38.0 700 600 500 400 300 250 38.5 TYP.
(A) IDD MAX.
IENH TYP.
IENL MAX.
80.0
5.0
-5.0
81.5
6.5
-6.5
41.0
90.0
135.0
39.0
83.0
8.0
-8.0
37.0
80.0
120.0
39.5
84.5
9.5
-9.5
28.0
60.0
90.0
40.0
86.0
11.0
-11.0
Semiconductor Ltd.
Data Sheet
8
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402C SERIES DROPOUT VOLTAGE, SUPPLY CURRENT, EN'H/L' LEVEL CURRENT (Continued)
SETTING OUTPUT VOLTAGE VR OUTPUT VOLTAGE VD DETECT VOLTAGE
E-1
DROPOUT VOLTAGE 1
E-2
DROPOUT VOLTAGE 2
E-3
SUPPLY CURRENT
E-4
EN'H'LEVEL CURRENT (A)
E-5
EN'H'LEVEL CURRENT (A)
(V) VROUT(T) 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 4.55 4.60 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00 MIN. 2.940 2.989 3.038 3.087 3.136 3.185 3.234 3.283 3.332 3.381 3.430 3.479 3.528 3.577 3.626 3.675 3.724 3.773 3.882 3.871 3.920 3.969 4.018 4.067 4.116 4.165 4.214 4.263 4.312 4.361 4.410 4.459 4.508 4.557 4.606 4.655 4.704 4.753 4.802 4.851 4.900
(V) VOUT MAX. 3.060 3.111 3.162 3.213 3.264 3.315 3.366 3.417 3.468 3.159 3.570 3.621 3.672 3.723 3.774 3.825 3.876 3.927 3.978 4.029 4.080 4.131 4.182 4.233 4.284 4.335 4.386 4.437 4.488 4.539 4.590 4.641 4.692 4.743 4.794 4.845 4.896 4.947 4.998 5.049 5.100 15.0 TYP.
(mV) Vdif1 MAX. TYP.
(mV) Vdif2 MAX. TYP.
(A) IDD MAX.
IENH TYP.
IENL MAX.
40.5
87.5
12.5
-12.5
41.0
89.0
14.0
-14.0
23.0
50.0
75.0
41.5
90.5
15.5
-15.5
42.0
92.0
17.0
-17.0
Semiconductor Ltd.
Data Sheet
9
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ELECTRICAL CHARACTERISTICS
XC6402F Series PARAMETER VR Output Voltage (note 2, 3) VR Maximum Output Current [VROUT(E)>1.6V] VR Maximum Output Current [VROUT(E)<1.6V] VR Load Regulation VR Dropout Voltage (note 4) VOLTAGE REGULATOR Supply Current VR Line Regulation Input Voltage VR Output Voltage Temperature Characteristics SYMBOL VROUT(E) IROUTMAX IROUTMAX VROUT Vdif1 Vdif2 IDD VROUT VIN VROUT VIN VROUT
Topr VROUT
Ta=25OC CONDITIONS VIN=VROUT(T)+1.0V, IROUT=30mA VIN=VROUT(T)+1.0V VIN=VROUT(T)+1.0V 1mA 4.75V ! VIN=5.75V+0.5Vp-pAC IROUT=30mA, f=1kHz 1.5 MIN x 0.98 (-30mV) 700 500 TYP VROUT(T) 15 E-1 (page 11~12) E-2 (page 11~12) 35 0.01 100 70 0.20 6.0 MAX x 1.02 (+30mV) 60 UNITS V mA mA mV mV A %/V V ppm / C
O
CIRCUIT
1 1 1 1 1 2 1 1
VR Ripple Rejection Rate
PSRR
-
60
-
dB
3
VR Current Limiter [VROUT(E)>1.6V] VR Current Limiter [VROUT(E)<1.6V] Short-Circuit Current VD Detect Voltage (note 7, 8) VD Hysteresis Range (note 7) VOLTAGE DETECTOR
IRlim IRlim IRshort VDF (E) VHYS
VIN=VROUT(T)+1.0V VIN=VROUT(T)+1.0V VIN=VROUT(T)+1.0V
700 x 0.98 (-30mV) VDF (E) x 0.02
800 800 30 VDF (T) VDF (E) x 0.05 1.5 1.8 1.8 1.9 1.9 2.0
x 1.02 (+30mV) VDF (E) x 0.08 3.0 3.5 3.7 3.8 3.9 4.0
mA mA mA V V
1 1 1 4 4
VDOUT=0.5V VIN = 1.5V VD Output Current (note 9) VIN = 2.0V IDOUT VIN = 3.0V VIN = 4.0V VIN = 5.0V VIN = 6.0V VD Detect Voltage Temperature Characteristics VDF / -
A
5
-40OCXC6402FV / FX, only VDF(T)>1.5V type are available. (NOTE 4) (NOTE 5) (NOTE 6) (NOTE 7) (NOTE 8) (NOTE 9)
ppm / OC M
4 6
Semiconductor Ltd.
Data Sheet
10
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402F SERIES DROPOUT VOLTAGE
SETTING OUTPUT VOLTAGE VR OUTPUT VOLTAGE VD DETECT VOLTAGE
E-1
DROPOUT VOLTAGE 1
E-2
DROPOUT VOLTAGE 2
(V) VROUT(T) 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 MIN. 0.770 0.820 0.870 0.920 0.970 1.020 1.070 1.120 1.170 1.220 1.270 1.320 1.370 1.420 1.470 1.519 1.568 1.617 1.666 1.715 1.764 1.813 1.862 1.911 1.960 2.009 2.058 2.107 2.156 2.205 2.254 2.303 2.352 2.401 2.450 2.499 2.548 2.597 2.646 2.695 2.744 2.793 2.842 2.891
(V) VOUT MAX. 0.830 0.880 0.930 0.980 1.030 1.080 1.130 1.180 1.230 1.280 1.330 1.380 1.430 1.480 1.530 1.581 1.632 1.683 1.734 1.785 1.836 1.887 1.938 1.989 2.040 2.091 2.142 2.193 2.244 2.295 2.346 2.397 2.448 2.499 2.550 2.601 2.652 2.703 2.754 2.805 2.856 2.907 2.958 3.009 18.0 25.0 27.0 30 50 100 TYP.
(mV) Vdif1 MAX. 700 250 600 500 150 400 300 200 100 100 TYP.
(mV) Vdif2 MAX. 800 700 600 500 400 300 250
41.0
90.0
135.0
37.0
80.0
120.0
28.0
60.0
90.0
Semiconductor Ltd.
Data Sheet
11
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402F SERIES DROPOUT VOLTAGE (Continued)
SETTING OUTPUT VOLTAGE VR OUTPUT VOLTAGE VD DETECT VOLTAGE
E-1
DROPOUT VOLTAGE 1
E-2
DROPOUT VOLTAGE 2
(V) VOUT MIN. 2.940 2.989 3.038 3.087 3.136 3.185 3.234 3.283 3.332 3.381 3.430 3.479 3.528 3.577 3.626 3.675 3.724 3.773 3.882 3.871 3.920 3.969 4.018 4.067 4.116 4.165 4.214 4.263 4.312 4.361 4.410 4.459 4.508 4.557 4.606 4.655 4.704 4.753 4.802 4.851 4.900 MAX. 3.060 3.111 3.162 3.213 3.264 3.315 3.366 3.417 3.468 3.159 3.570 3.621 3.672 3.723 3.774 3.825 3.876 3.927 3.978 4.029 4.080 4.131 4.182 4.233 4.284 4.335 4.386 4.437 4.488 4.539 4.590 4.641 4.692 4.743 4.794 4.845 4.896 4.947 4.998 5.049 5.100 15.0 TYP.
(mV) Vdif1 MAX. TYP.
(mV) Vdif2 MAX.
(V) VROUT(T) 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 4.55 4.60 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00
23.0
50.0
75.0
Semiconductor Ltd.
Data Sheet
12
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! TEST CIRCUITS
XC6402C Series
# Circuit 1
VIN
# Circuit 2
VIN
A
CIN VIN VDOUT
CIN EN
VDOUT
V V A
VEN
EN VROUT VSS
A
CL VRIOUT
VROUT
V
CIN:1uF (ceramic)
VSS
.
CIN: 1uF (ceramic)
# Circuit 3
VIN VDOUT VIN={VROUT+1.0V}VDC+0.5Vp-pAC VROUT>4.75V VIN=5.75VDC+0.5Vp-pAC
V V A
VEN
EN VROUT VSS
CL
V
# Circuit 4
XC6402CA / CB / CE / CF/ CL / CM / CS type
VIN VDOUT VIN CIN 100k
XC6402 CC / CD / CH / CK / CN / CP / CT / CU type
VIN VDOUT VIN CIN EN 100k
V
EN VROUT VSS
V
VROUT VSS
V
V
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 5
XC6402CA / CB / CE / CF/ CL / CM / CS type
VIN VDOUT CIN EN VROUT VSS
XC6402 CC / CD / CH / CK / CN / CP / CT / CU type
VIN VDOUT
A
VDS
CIN EN VROUT VSS
A
VDS
CIN: 1uF (ceramic)
CIN:1 uF (ceramic)
Output Capacitor Corresponding Chart VR OUTPUT VOLTAGE CL 0.8 ~1.45V 6.8F 1.5 ~ 1.75V 2.2F 1.8V ~ 5.0V 1.0F
Semiconductor Ltd.
Data Sheet
13
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! TEST CIRCUITS (Continued)
XC6402F Series
# Circuit 1
VIN CIN VIN VDOUT
# Circuit 2
VIN
A
CIN Cd
VROUT VSS
VDOUT
V
Cd
A
CL VRIOUT
VROUT
.
V
CIN: 1uF (ceramic)
VSS
CIN: 1uF (ceramic)
# Circuit 3
VIN VDOUT VIN={VROUT+1.0V}VDC+0.5Vp-pAC VROUT>4.75V VIN=5.75VDC+0.5Vp-pAC
V
Cd VROUT VSS
CL
V
# Circuit 4
XC6402FV / FX type
VIN VDOUT VIN CIN 100k
XC6402FY / FZ type
VIN VDOUT VIN CIN Cd 100k
V
Cd VROUT VSS
V
VROUT VSS
V
V
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 5
XC6402FV / FX type
VIN VDOUT CIN Cd VROUT VSS
XC6402FY / FZ type
VIN VDOUT
A
VDS
CIN Cd VROUT VSS
A
VDS
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 6
XC6402FV / FX type
VIN VDOUT CIN Cd
CIN Cd
XC6402FY / FZ type
VIN VDOUT
A
VROUT VSS
.
A
VROUT VSS
.
Output Capacitor Corresponding Chart VR OUTPUT VOLTAGE CL 0.8 ~1.45V 6.8F 1.5 ~ 1.75V 2.2F 1.8V ~ 5.0V 1.0F
Semiconductor Ltd.
Data Sheet
14
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! OPERATIONAL EXPLANATION
The voltage, divided by resistors R1 & R2 which are connected to the VROUT pin is compared with the internal reference voltage by the error amplifier. The P-Channel MOSFET, which is connected to the VROUT pin, is then driven by the subsequent output signal. The output voltage at the VROUT pin is controlled & stabilized by negative feedback. The current limit circuit and short circuit protection operate in relation to the level of output current. Further, the voltage regulator's internal circuitry can be shutdown via the EN pin's signal. XC6402 series> The series' detector function monitors the voltage divided by resistors R3 & R4 which are connected to the VROUT pin or the VIN pin, as well as monitoring the voltage of the internal reference voltage source via the comparator. The VDSEN pin has options (please refer to the Selection Guide, item 2 on page 2). A 'High' or 'Low' signal level can be output from the VDOUT pin when the VD pin voltage level goes below the detect voltage. The VD output logic has options (please refer to the Selection Guide, item 3 on page 2). As VDOUT is an open-drain N-channel output, a pull-up resistor of about 220K is needed to achieve a voltage output. Because of hysteresis at the detector function, output at the VDOUT pin will invert when the detect voltage level increases above the release voltage (105% of the detect voltage). For the XC6402C type, in stand-by, if a voltage of the recovery voltage is present at the VROUT pin (from another power source), the VDOUT pin will be high impedance mode, and the pull up voltage will be output at VDOUT. By connecting the Cdelay pin to a capacitor (Cd), the XC6402F series can apply a delay time to VDOUT voltage when releasing voltage. The delay time can be calculated from the internal resistance, Rdelay (2M TYP. fixed) and the value of Cd as per the following equation.
Delay Time = Cdelay x Rdelay x 0.7
Delay Time Cdelay 0.01 F 0.022 F 0.047 F 0.1 F 0.22 F 0.47 F 1 F Rdelay standard : 1.0 ~ 3.5M DELAY TIME (TYP.) 14 msec 30.8 msec 65.8 msec 140 msec 308 msec 658 msec 1400 msec TYP : 2.0M DELAY TIME (TYP.) 7.0 ~ 24.5 msec 15.4 ~ 53.9 msec 32.9 ~ 115.15 msec 70.0 ~ 245.0 msec 154.0 ~ 539.0 msec 329.0 ~ 1151.5 msec 700.0 ~ 2450.0 msec
With the XC6402 series regulator, a stable output voltage is achievable even if low ESR capacitors are used, as a phase compensation circuit is built-in to the regulator. In order to ensure the effectiveness of the phase compensation, we suggest that an output capacitor (CL) be connected as close as possible, between the output pin (VROUT) and the VSS pin. Please use an output capacitor (CL) with a capacitance, based on the chart below. We also suggest an input capacitor (CIN) of 1F : this should be connected between VIN and VSS in order to stabilize input power source. Output Capacitor Corresponding Chart VR OUTPUT VOLTAGE CL 0.8 ~1.45V 6.8F 1.5 ~ 1.75V 2.2F 1.8V ~ 5.0V 1.0F
The XC6402 series regulator offers a combination of current limit and circuit protection by means of a built-in fixed current limiter circuit and a foldback circuit. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, the output voltage drops further and output current decreases. When the output pin is shorted, a current of about 30mA flows.
Semiconductor Ltd.
Data Sheet
15
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! OPERATIONAL EXPLANATION (Continued)
The IC's internal regulator circuitry can be shut down via the signal from the EN pin with the XC6402C series. In shutdown mode, output at the VROUT pin will be pulled down to the VSS level via R1 & R2. Note that as the XC6402*E to K types of the XC6402C series are 'Active HIGH / No Pull-Down' and XC6402*R to U types of the XC6402C series are 'Active LOW / No Pull-Up', operations will become unstable with the EN pin open (See the chart below). SERIES XC6402C A ~ D XC6402C E ~ K XC6402C L ~ P XC6402C R ~ U EN INPUT LOGIC Active HIGH with pull-down resistor Active HIGH with no pull-down resistor Active LOW with pull-up resistor Active LOW with no pull-up resistor
We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the EN pin. If this IC is used with the correct specifications for the EN pin, the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry if a voltage other than VIN or VSS is applied.
!
NOTES ON USE
1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. Please strengthen VIN and VSS wiring in particular. 3. Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible. Should rapid input fluctuation or load fluctuation occur, please increase the capacitor value such as CIN or CL to stabilize the operation.
Semiconductor Ltd.
Data Sheet
16

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