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description gm66102 of positive fixed and adjustable regulators is de- signed to provide up to 1a output with high current, high ac- curacy, and extremely low dropout voltage performance. these regulators feature 300 to 350mv (full load) dropout voltages and very low ground current. although designed for high current, and loads, these devices are also useful in lower current, extremely low dropout-critical systems, where their minimal dropout voltage and ground current val- ues are important characteristics. gm66102 is fully protected against overcurrent, reversed input polarity (or reversed battery connection), reversed lead insertion, over-temperature operation, and transient voltage spikes (positive or negative). gm66102 is available in to-220, sot-223, to-252 and to-263 packages. application high efficiency linear regulators post regulators for switching supplies battery powered equipment automotive electronics g m 4 3 1 features fixed and adjustable v oltage versions output current up to 1a low dropout voltage 350mv @ 1a low ground current accurate 1% guaranteed t olerance extremely fast transient response reverse-battery protection "load dump" protection extremely fast transient response typical applica tion circuits + 3.3v 5% gm66102 - 2.5 2.5v 1% @1a 33f g m 6 6 1 0 2 v 0 . 1 www.gammamicro.com 1 + 22f v in c in v out gnd c is required if regulator is located an appreciable distance from power supply filter. in
marking information & pin configura tions (top view) g m 6 6 1 0 2 2 ordering information sot-223 to-252 (dpak) v in v out to-220 v in gnd v out 2 to-263-2 (d pak) v v / vvv = output voltage (33=3.3v , 120=12v) a = assembly location y = y ear w w = weekly package shipping ordering number output v oltage to-220 to-220 to-220 sot-223 sot-223 sot-223 sot-223 sot-223 sot-223 to-252 to-252 to-252 to-263-2 to-263-2 to-263-2 to-252 to-252 to-252 to-263-2 to-263-2 to-263-2 50 units/ tube 50 units/ tube 50 units/ tube 80 units/ tube 80 units/ tube 80 units/ tube 2,500 units/ t ape & reel 2,500 units/ t ape & reel 2,500 units/ t ape & reel 80 units / t ube 80 units / t ube 80 units / t ube 50 units / t ube 50 units / t ube 50 units / t ube 2,500 units/ t ape & reel 2,500 units/ t ape & reel 2,500 units/ t ape & reel 800 units/ t ape & reel 800 units/ t ape & reel 800 units/ t ape & reel gm 66102-1.5tb3t gm 66102-1.8tb3t gm 66102-2.5tb3t gm 66102-1.5st3t gm 66102-1.8st3t gm 66102-2.5st3t gm 66102-1.5st3r gm 66102-1.8st3r gm 66102-2.5st3r gm 66102-1.5tc3t gm 66102-1.8tc3t gm 66102-2.5tc3t gm 66102-1.5ta3t gm 66102-1.8ta3t gm 66102-2.5ta3t gm 66102-1.5tc3r gm 66102-1.8tc3r gm 66102-2.5tc3r gm 66102-1.5ta3r gm 66102-1.8ta3r gm 66102-2.5ta3r 1.5v 1.8v 2.5v 2.5v 2.5v 2.5v 2.5v 2.5v 2.5v 1.8v 1.8v 1.8v 1.8v 1.8v 1.8v 1.5v 1.5v 1.5v 1.5v 1.5v 1.5v gm66102 vvayww gnd gnd gm66102 vvayww v in gnd v out gm66102 vvayww v in v out gnd gm66102 vva yww gnd gnd * for detail ordering number identification, please see last page.
g m 6 6 1 0 2 3 ordering information (continued) package shipping ordering number output v oltage to-220 to-220 to-220 to-220 sot-223 sot-223 sot-223 sot-223 sot-223 sot-223 sot-223 sot-223 to-252 to-252 to-252 to-252 to-263-2 to-263-2 to-263-2 to-263-2 to-252 to-252 to-252 to-252 to-263-2 to-263-2 to-263-2 to-263-2 50 units/ tube 50 units/ tube 50 units/ tube 50 units/ tube 80 units/ tube 80 units/ tube 80 units/ tube 80 units/ tube 2,500 units/ t ape & reel 2,500 units/ t ape & reel 2,500 units/ t ape & reel 2,500 units/ t ape & reel 80 units / t ube 80 units / t ube 80 units / t ube 80 units / t ube 50 units / t ube 50 units / t ube 50 units / t ube 50 units / t ube 2,500 units/ t ape & reel 2,500 units/ t ape & reel 2,500 units/ t ape & reel 2,500 units/ t ape & reel 800 units/ t ape & reel 800 units/ t ape & reel 800 units/ t ape & reel 800 units/ t ape & reel gm 66102-3.0tb3t gm 66102-3.3tb3t gm 66102-5.0tb3t gm 66102-12tb3t gm 66102-3.0st3t gm 66102-3.3st3t gm 66102-5.0st3t gm 66102-12st3t gm 66102-3.0st3r gm 66102-3.3st3r gm 66102-5.0st3r gm 66102-12st3r gm 66102-3.0tc3t gm 66102-3.3tc3t gm 66102-5.0tc3t gm 66102-12tc3t gm 66102-3.0ta3t gm 66102-3.3ta3t gm 66102-5.0ta3t gm 66102-12ta3t gm 66102-3.0tc3r gm 66102-3.3tc3r gm 66102-5.0tc3r gm 66102-12tc3r gm 66102-3.0ta3r gm 66102-3.3ta3r gm 66102-5.0ta3r gm 66102-12ta3r 3.0v 3.0v 3.0v 3.0v 3.0v 3.0v 3.0v 3.3v 3.3v 3.3v 3.3v 3.3v 3.3v 3.3v 5.0v 12v 12v 12v 12v 12v 12v 12v 5.0v 5.0v 5.0v 5.0v 5.0v 5.0v * for detail ordering number identification, please see last page.
g m 6 6 1 0 2 4 p ara met er sym bol v alue uni t inter nally limit ed w input sup ply v oltag e (no te 1.) v in -20 t o +60 v lead t empe ratur e (sold ering , 5 s e c ) stora ge t empe ratur e ran ge t lead t stg 260 -65 t o +15 0 c c powe r dis sipat ion p d absolute maximum ratings p ara met er sym bol v alue uni t 26 v oper ating junc tion t empe ratur e ra nge t j -40 t o +12 5 c ther mal r esist ance (jun ction to ca se) to- 223 to- 252 to- 263 to- 220 r q jc 15 6.0 2.0 2.0 c/w maxi mum ope rating inpu t v oltag e v in operating ra tings block diagram + - v in 1.24v ref. 28v r1 r2 v out gnd thermal shut-down o.v. i limit
g m 6 6 1 0 2 5 electrical characteristics (t = 25c unless otherwise noted) a unless otherwise specified: t = 25c; bold values are guaranteed across the operating temperature range. j parameter conditions min typ max unit load regulation line regulation output voltage change with temperature coef. (note 6) ground current ground pin current at dropout i gnddo current limit output voltage (note2) i = 10 ma o v = v + 5v, 10ma i i in out out fl d v/ d t out i = 750ma, v = v + 1v o in out i = 1.0a o -1 -2 0.06 0.20 20 8 22 0.9 2.1 1 2 0.5 1.0 100 20 3.5 % % % ppm/c ma a % v = 0.5v less than specified v , in out i = 10ma, (note 5) out v ,= 0v (note 4) out ma output noise voltage e , (10hz to 100hz) n i = 100ma o c = 10f l c = 33 l f 400 260 v (rms) 10ma i i , (v + 1v) v 26v o fl out in i = 10ma, ( o v + 1v) v 26v out in note 1: maximum positive supply voltage of 60v must be of limited duration (<100msec) and duty cycle ( 1%). the maximum continuous supply voltage is 26v. note 2: full load current (i ) is defined as 1.0a for the gm66102 series. fl note 3: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v + 1v applied to v out in note 4: v = v (nominal) + 1v. for example, use v = 4.3v for a 3.3v regulator or use 6v for a 5v regulator. employ pulse-testing in out in procedures to minimize temperature rise. note 5: ground pin current is the regulator quiescent current. the total current drawn from the source is the sum of the load current plus the ground pin current. note 6: output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. dropout voltage (for 1.50 version) (for 1.80 version) d v -1% (note 3) = out i = 100ma o i = 750ma o i = 1.0a o i = 100ma o i = 1.0a o i = 100ma o i = 1.0a o 80 220 300 200 500 mv 0.6 0.8 v 0.3 0.5 v
g m 6 6 1 0 2 6 typical characteristics gm66102 450 400 350 300 250 200 150 100 50 0 0.0 0.5 1.0 1.5 output current (a) d r o p o u t v o l t a g e ( m v ) figure 2. gm66102 dropout voltage vs. output current 5.0 4.0 3.0 2.0 1.0 0 0 1 2 3 4 5 6 input voltage(v) o u t p u t v o l t a g e ( v ) figure 3. gm66102-5.0 dropout characteristics i = 1.0a out i = 10ma out 1.2 1.0 0.8 0.6 0.4 0.2 0 0 2 4 6 8 10 supply voltage (v) g r o u n d c u r r e n t ( m a ) figure 4. gm66102 ground current vs. supply voltage v = 5v out i = 10ma load 60 50 40 30 20 10 0 0 2 4 6 8 10 supply voltage (v) g r o u n d c u r r e n t ( m a ) figure 5. gm66102 ground current vs. supply voltage 300 250 200 150 100 50 0 -60 -30 0 30 60 90 120 130 temperature (c) g r o u n d c u r r e n t ( a ) figure 6. gm66102 ground current vs. temperature gm66102 i = 1.0a out i = 10ma load 2.5 2.0 1.5 1.0 0.5 0 -60 -30 0 30 60 90 120 150 temperature (c) g r o u n d c u r r e n t ( m a ) figure 7. gm66102 ground current vs. temperature i = 250ma load 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 3.24 3.22 3.20 -60 -30 0 30 60 90 120 150 temperature (c) figure 8. gm66102-3.3 output voltage vs. temperature o u t p u t v o l t a g e ( v ) 3devices
g m 6 6 1 0 2 7 application informa tion gm66102 series is high performance whit low-dropout voltage regulators, suitable for all moderate to high- current voltage regulator applications. their 350mv dropout voltage at full load makes them especially valu- able in battery powered systems and as high efficiency noise filters in "post-regulator" applications. unlike older npn-pass transistor designs, where the minimum dropout voltage is limited by the base-emitter voltage drop and collector-emitter saturation voltage, dropout performance of the pnp output of these devices is lim- ited merely by the low v saturation voltage. a trade- ce off for the low dropout voltage is a varying base drive requirement. but, gamma's pnp process reduces this drive requirement to merely 1% of the load current. the gm66102 series of regulators are fully protected from damage due to fault conditions. current limiting is provided. this limiting is linear and output current un- der overload conditions is constant. thermal shutdown disables the device when the die temperature exceeds the 125c maximum safe operating temperature. transient protection allows device (and load) survival even when the input voltage spikes between -20v and +60v. when the input voltage exceeds about 35v to 40v, the overvoltage sensor temporarily disables the regulator. the output structure of these regulators al- lows voltages in excess of the desired output voltage to be applied without reverse current flow. an additional feature of this regulator family is a common pinout: a design's current requirement may change up or down by yet use the same board layout, as all of these regu- lators have identical pinouts. + + v in g n d v o u t figure 9. linear regulators require only two capacitors for operation. thermal design linear regulators are simple to use. the most com- plicated design parameters to consider are thermal characteristics. thermal design requires the follow- ing application-specific parameters: maximum ambient temperature, t a output current, i out output voltage, v out input voltage, v in first, we calculate the power dissipation of the regu- lator from these numbers and the device parameters from this formula: where the ground current is approximated by 1% of i. out then the heat sink thermal resistance is determined with this formula: where t 125c and r is between 0 and j(max) cs q 2c/w. the heat sink may be significantly reduced in appli- cations where the minimum input voltage is known and is large compared with the dropout voltage. use a series input resistor to drop excessive voltage and distribute the heat between this resistor and the regu- lator, the low dropout properties of gamma pnp reg- ulators allow very significant reductions in regulator power dissipation and the associated heat sink with- out compromising performance. when this tech- nique is employed, a capacitor of at least 0.1f is needed directly between the input and regulator ground. p = i (1.01v - v ) d out in out r = ( sa jc q r + r ) cs qq t - t j(max) a p d v o u t v in
g m 6 6 1 0 2 8 to-252 p ackage outline dimensions 6.50 0.05 5.340 0.05 29 0.5 ref 0.6 6.10 0.05 7.20 0.05 0.75 0.10 0.89 0.05 0.81 0.038 2.30 0.05 0.508 0.0127 7 7 7 0.070 0.05 1.0 0.05 0.75 0.10 1.525 0.10 2.70 0.10 9.900 2 r0.15 max unit: mm r 0.25 0.13 to-263-2 p ackage outline dimensions pad layout 9.90 0.20 15 0.40 1.50 dp0.20 9.20 0.20 4.90 0.20 15.3 0.20 1.27 0.10 0.90 0.10 2.54 typ (2.54 0.20) 1.4 0.20 3 4.50 0.20 1.30 +0.1 -0.05 0.10 0.01 2.40 0.20 2.00 0.10 r0.30 r0.30 2.54 0.10 0.50 +0.1 -0.05 4.0 7.0 10.0 0.20 0.40 0.90 7.2 9.20 0.20 4.90 0.20 unit: mm 10.00 0.20 3 3 0.33 8.38 0.63 17.02 0.12 3.05 0.04 1.016 0.24 6.096 0.42 10.66 inches mm ( ) 1.20 r 0.45 0.75 3 3 r 0.3 pad layo ut 0.244 6.20 0.228 5.80 0.118 3.0 0.063 1.6 0.243 6.172 0.101 2.58 inches mm ( )
g m 6 6 1 0 2 9 to-220 p ackage outline dimensions 9.90 0.20 3.60 0.20 1.50 dp0.20 1 3 . 0 8 0 . 2 0 9 . 2 0 0 . 2 0 3.70 0.20 1.30 2.80 0.10 1 5 . 9 0 0 . 2 0 1 8 . 9 5 m a x 1 0 . 0 8 0 . 3 0 1.52 0.10 0.80 0.10 2.54 typ (2.54 0.20) 0.50 2.40 0.20 unit: mm 1.30 0.10 4.50 0.20 8.70 1.70 4.60 1.46 1.00 3.00 45 +0.1 -0.05 3 3 3 +0.1 -0.05 8.0 7.0 7.0 0.9 3-r0.2 10.00 0.20 3 3 8.40 1.27 0.10 2 - r 0.3 sot- 223 p ackage outline dimensions 0~10 pad layout 0.059 1.5 0.059 1.5 0.059 1.5 0.248 6.3 0.091 2.3 0.091 2.3 0.079 2.0 0.079 2.0 inches mm 0.15 3.8 unit: mm 3.0 0.05 7.0 0.15 1.75 0.10 3.5 0.10 0.70 0.05 2.30typ 4.6 0.1 0.95typ 0~0.075 0.3 0.05 0.65 0.10 1.80max 0.60 1.75 0.10 0.06 0.04 6.50 0.10 1.6 0.10 0.84 0.46 13 13
g m 6 6 1 0 2 10 ordering number gm 66102 1.5 tb3 t gamma micro. circuit type package ta3: t o-263 tb3: to-220 tc3: to-252 st3: sot-223 shipping r: t ape & reel t : tube output voltage 1.5: 1.5v 1.8: 1.8v 2.5: 2.5v 3.0: 3.0v 3.3: 3.3v 5.0: 5.0v 12: 12v
g m 6 6 1 0 2 11

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