1 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag block diagram description the GM4275 series of fixed output, micro-power voltage regulators is designed for applications which require wide input voltage range up to 45v. the GM4275 is an excellent choice for the use in automobile applications with the features of low quiescent current and low drop output voltage. the GM4275 features the shutdown functions, such as over temperature protection for further power saving concerns. a reset signal is generated for an output voltage vq of typ.4.65 v. the delay time can be programmed by the external delay capacitor. the GM4275 is in 5-pin to263 package. however, 5-pin to252 package is also available for better board area saving purpose. features ? output voltage: 5v 2% ? very low current consumption ? power on and under voltage reset ? reset low down to vq=1v ? very low drop out voltage ? short circuit protection ? reverse polarity protection ? suitable for automotive applications applications ? automotive electronics ? switching power suppliers temperature senso r saturation control and protection circuit bandgap reference buffer reset generato r i d rq q gnd
2 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag marking information and pin configurations (top view) to-263-5 to-252-5 a: assembly / test site code y: year ww: week pin descriptions pin number pin name pin function 1 i input; block to ground directly at the ic with a ceramic capacitor. 2 rq reset output; open collector output 3 gnd ground; internally connected to heat sink 4 d reset delay; connected capacitor to gnd for setting delay time 5 v out output; block to ground with a 22 f, esr < 5 ? at 10khz ordering information ordering number package shipping GM4275ta5rg to-263-5 800 units / reel GM4275tc5rg to-252-5 2,500 units/tube GM4275g ayww 1. i 2. rq 3. gnd 4. d 5. q GM4275g ayww 1. i 2. rq 3. gnd 4. d 5. q
3 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag absolute maximum ratings ratings parameter symbol min max units test condition input voltage v i -42 45 v - input current i i - - - internally limited output voltage v q -1.0 16 v - output current i q - - - internally limited reset output voltage v rq -0.3 25 v - reset output current i rq -5 5 ma reset delay voltage v d -0.3 7 v reset delay current i d -2 2 ma junction temperature t j - 150 c storage temperature t stg -50 150 c note: maximum ratings are absolute ratings, exceeding any one of these values may cause irreversible damage to the integrated circuit recommended operating ratings limits parameter symbol min max units remark input voltage v i 5.5 42 v - junction temperature t j -40 150 c - thermal resistance limits parameter symbol min max units remark junction case jc 2 c/w - junction ambient ja 50 c /w 5l to263 junction ambient ja 70 c /w 5l to252
4 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag electrical characteristics (t j = -40 c to 150 c , v in =13.5v, unless otherwise noted) parameter symbol test condition min typ max unit output output voltage v q 5ma < i q < 400ma 6v < v i < 40v 4.9 5.0 5.1 v output current limitation (note 1) i q - 450 700 - ma i q1 i q = 1ma, t j = 25 c - 150 200 a i q2 i q = 1ma, t j = 85 c - 150 220 a i q3 i q = 250ma - 5 10 ma current consumption; i q =i i - i q i q4 i q = 400ma - 12 22 ma dropout voltage v dr i q = 300ma, v dr = v i - v q - 250 500 mv line regulation v qi v i = 8v to 32v, i q = 5ma - 15 30 mv load regulation v ql i q = 5ma to 400ma -15 5 15 mv power supply ripple rejection psrr f r = 100hz, v r = 0.5v pp - 60 - db temperature output voltage drift dv q /dt - 0.5 - mv/k reset timing d and output rq reset switching threshold v rt 4.5 4.65 4.8 v reset output low voltage v rql r ext 5k, v q > 1v - 0.2 0.4 v reset output leakage current i rqh v rqh > 4.5v - 0 2 a reset charging current i d v d = 1v 3 6 9 a upper timing threshold v du - 1.5 1.8 2.2 v lower timing threshold v dl - 0.2 0.4 0.7 v reset delay time t d c d = 47nf 10 16 22 ms reset reaction time t rr c d = 47nf - 0.5 2 s note 1. measured when the output voltage v q has dropped 100mv from the nominal value obtained at v i = 13.5v
5 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag test circuit reset timing v i d 4 3 gnd i 1 5 2 q rq c i1 1000 f c i2 100nf c d 47nf c q 22 f v q v rq i gnd i q i rq i i v d i ds i d GM4275 r ext 5k v i v q v d v rq v rt v st v dt power on reset thermal shutdown voltage dip at input undervoltage secondary spike overload at output t d t rr < t rr dv dt = i d c d
6 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag package outline dimensions ? to-263-5 0.596 - 0.612 (15.14 - 15.54) (1.70) 0.067 typ 0.224 - 0.272 (5.70 - 6.90) (0.71 - 0.91) 0.028 - 0.036 (8.20 - 8.60) 0.322 - 0.339 (5.08 - 5.48) 0.200 - 0.216 0.389 - 0.408 (9.88 - 10.18) 7 3 0 - 8 (2.34 - 2.74) 0.092 - 0.108 (0.31 - 0.53) 0.012 - 0.021 (4.47 - 4.67) 0.176 - 0.184 (1.56 - 1.76) 0.061 - 0.069 0.046 - 0.054 (1.17 - 1.37) package outline dimensions ? to-252-5 o o (6.350 ? 6.650) 0.250 ? 0.262 (5.200 ? 5.400) 0.205 ? 0.213 (9.500 ? 9.900) 0.374 ? 0.390 (1.27) 0.050 (0.400 ? 0.600) 0.016 ? 0.024 typ. (2.540) 1.00 typ. (2.550 ? 2.900) 0.100 ? 0.114 (0.430 ? 0.580) 0.017 ? 0.023 (1.400 ? 1.780) 0.055 ? 0.070 (0.000 ? 0.127) 0.000 ? 0.005 (5.400 ? 5.700) 0.213 ? 0.224 (2.200 ? 2.400) 0.087 ? 0.094 (0.430 ? 0.580) 0.017 ? 0.023 (3.800) 0.150 ref
7 GM4275 v2.03 GM4275 wide input range 5v low dropout regulator with reset flag 6 8 10 ordering number g m 4275 ta5 r g package type shipping type apm gamma micro circuit type ta5: to263-5 tc5: to252-5 t: tube r: ta p e & reel blank: pb-free g: green note: pb-free products: ? rohs compliant and compatible with the cu rrent require-ments of ipc/jedec j-std-020. ? suitable for use in snpb or pb-free soldering processes with 100% matte tin (sn) plating. green products: ? lead-free (rohs compliant) ? halogen free (br or cl does not exceed 900ppm by weight in homogeneous material and total of br and cl does not exceed 1500ppm by weight)
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