G1084T33TF

G1084_07 GMT | Alldatasheet

Document overview

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• PDF pages: 11

Technical content

Features

„ Available in Adjust Version „ TO-220, TO-252,TO-263 and TO-263T Package „ Internal Short Circuit Current Limiting „ Internal Over Temperature Protection „ Output Current 5A

Applications

„ Post Regulation for Switching DC/DC Con- verter „ High Efficiency Linear Regulator „ Battery Charger „ Battery Powered Instrumentation „ Motherboard General Description The G1084 is a low dropout linear regulator with a dropout of 1.2V at 5A of load current. It is avail- able in an adjustable version, which can set the output from 1.25V to 5V with only two external resistors. The G1084 provides over temperature and over current protection circuits to prevent it from being damaged by abnormal operating conditions. The G1084 is available in TO-220, TO-252, TO-263 and TO-263T packages. A minimum of 220 µF tantalum electrolytic capac itor is required at the output to improve the transient response and sta- bility.

Ordering Information

(Pb free) MARKING TEMP. RANGE PACKAGE 1 2 3 G1084T33T G1084T33Tf G1084 -40 °C to +85°C TO-220 GND/ADJ V OUT V IN G1084T43U G1084T43Uf G1084 -40 °C to +85°C TO-252 GND/ADJ V OUT V IN G1084T53U G1084T53Uf G1084 -40 °C to +85°C TO-263 GND/ADJ V OUT V IN G1084TU3U G1084TU3Uf G1084 -40 °C to +85°C TO-263T GND/ADJ V OUT V IN * For other package types and pin options, please contact us at sales@gmt.com.tw Note: T3: TO-220 T4: TO-252 T5: TO-263 TU: TO-263T (thin) 3: Bonding Code U: Tape & Reel T: Tube Package Type Typical Application [Note 4]: Type of COUT VIN G1084 220µF VOUT IO COUT 220µF GND/ADJ VIN VOUT Top View 1 2 3 TO-252/ TO-263/TO-263T 1 3 TO-220 Top View VIN G1084 220µF VOUT IO COUT 220µF GND/ADJ VIN VOUT Top View 1 2 3 TO-252/ TO-263/TO-263T 1 3 TO-220 Top View

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. Absolute Maximum Ratings (Note 1) Operating Conditions (Note 1) Power Dissipation Internally Limited (Note 2) Storage Temperature Range . . .-65°C ≤ T J ≤+150°C Thermal Resistance Junction to Ambient, (θJA) Thermal Resistance Junction to Case, (θJC) Note (1): See Recommended Minimum Footprint (2): Refer to heatsink package dimension.

Electrical Characteristics

Operating Conditions: VIN ≤ 5.5V, TA =TJ = 25°C unless otherwise specified. [Note3] PARAMETER CONDITION MIN TYP MAX UNIT Reference Voltage V IN - VOUT = 2V, IOUT = 10mA 1.225 1.250 1.275 V Line Regulation (V OUT + 1.5V) < VIN < 5.5V, IOUT = 10mA --- 0.5 1 % Load Regulation (V IN - VOUT) = 2V, 10mA < IOUT <5A --- 0.04 0.5 % Dropout Voltage ΔVOUT = 2%, IOUT = 5A --- 1.3 1.5 V Current Limit (V IN - VOUT) = 2V --- 5.4 --- A Adjust Pin Current Change V IN - VOUT = 2V, 10mA < IOUT < 5A --- 0.15 --- µA Minimum Load Current 1.5V < (VIN - VOUT) < 5.25V 10 --- --- mA Quiescent Current V IN - VOUT = 2V --- 80 150 µA Ripple Rejection f = 120Hz, COUT = 10µF Tantalum, (VIN - VOUT) = 3V, IOUT = 1A --- 45 --- dB Temperature Stability V IN = 4V, IO =10mA --- 0.3 --- % RMS Output Noise (% of VOUT) T A = 25°C, 10Hz < f < 10kHz, ILOAD = 10mA --- 0.007 --- % Thermal Shutdown Junction Temperature --- 150 --- °C Thermal Shutdown Hysteresis --- 30 --- °C Note 1: Absolute Maximum Ratings are limits beyond whic h damage to the device may occur. Operating C onditions are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics. Note 2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal resistance, θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is T jmax-TA / θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into thermal shutdown. Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. Note4: The type of output capacitor should be tantalum or aluminum.

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. Definitions Output Voltage The G1084 provides an adjustable output voltage from 1.25V to 5V. with two external resistors. It can be for- mulated as: R 2 VOUT = 1.25V x (1+ R1 ) + IADJ x R2 IADJ = 80µA (TYP.) Dropout Voltage The input/output Voltage differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 2% below its nominal value. Dropout voltage is affected by junction temperature, load cur- rent and minimum input supply requirements. Line Regulation The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly af- fected. Load Regulation The change in output voltage for a change in load current at constant chip temperature. The measure- ment is made under conditions of low dissipation or by using pulse techniques such that average chip tem- perature is not significantly affected. Maximum Power Dissipation The maximum total device dissipation for which the regulator will operate within specifications. Quiescent Bias Current Current which is used to operate the regulator chip and is not delivered to the load.

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. Typical Performance Characteristics (VIN-VOUT = 3V, VOUT = 1.25V, CIN = 220µF, COUT = 220µF, TA=25°C, unless otherwise noted.) 10 100 1000 10000 100000 1000000 Frequency (Hz) Ripple Rejection (dB) 625mA (VIN-VOUT)>Vdropout Vripple<0.5VP-P COUT = 220µF Line Transient Response Short Circuit-Current Ripple Rejection 1.225 1.230 1.235 1.240 1.245 1.250 1.255 1.260 1.265 1.270 1.275 2 . 533 . 544 . 555 . 56 VIN (V) VOUT (V) T = 25°C T = -25° Load Transient Response Output Noise Line Regulation

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) Dropout Voltage vs. IOUT Load Regulation Output Voltage vs. Temperature IL = 2.5A Adj Pin Current vs. Temperature 0.5 1.5 01234 IOUT (A) Dropout Voltage (V) T = 25°C 1.240 1.243 1.245 1.248 1.250 1.253 1.255 -50 -30 -10 10 30 50 70 Temperature (°C) VOUT (V) VIN = 5V VIN = 3V 100 -50 -30 -10 10 30 50 70 Temperature (°C) Adj Pin Current (µA) VIN = 5V VIN = 3V - 5 0 - 3 0 - 1 0 1 03 05 07 0 Temperature (°C) Output Voltage Deviation (mV) IL = 10mA~2.5A VIN = 3V VIN = 5V IL = 2.5A 0.5 1.5 2.5 3.5 25 35 45 55 65 75 85 TAMB (°C) Max. Dissipation Power (W) A=0.1 A=0.2 A=0.3 A=0.4 A=0.5 A=1.0 A=1.5 A=2.0 A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0 G1084T43(TO-252) Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area ) Unit : in2 0.5 1.5 2.5 3.5 012345 PCB Top Copper Area (in2) Max. Dissipation Power (W) G1084T43(TO-252) Max. Power Dissipation vs. PCB Top Copper Area TAMB = 25°C ; Still Air

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G1084T33 (TO-220) Max. Power Dissipation vs. Temperature 0.5 1.5 2.5 3.5 12345 PCB Top Copper Area (in2) Max. Dissipation Power (W ) 0.5 1.5 2.5 3.5 25 35 45 55 65 75 85 TAMB (°C) Max. Dissipation Power (W) A=1.0 A=1.5 A=2.0 A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0 25 35 45 55 65 75 85 Temperature (°C) Max. Dissipation Power (W) G1084T53(TO-263) Max. Power Dissipation vs. PCB Top Copper Area TAMB = 25°C ; Still Air Unit : in2 Heatsink No Heatsink G1084T53(TO-263) Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area )

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. Recommended Minimum Footprint Heatsink Package Dimension TO-252 TO-263 TO-263T

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc.

Package Information

TO-220 (T3) Package MILLIMETER INCH SYMBOL MIN MAX MIN MAX A 4.318 4.826 0.170 0.190 A1 2.46 2.72 0.097 0.107 b 0.69 0.94 0.027 0.037 b1 1.143 1.397 0.045 0.055 C 0.304 0.460 0.012 0.018 D 3.429 3.683 0.135 0.145 D1 8.53 9.04 0.336 0.356 d 2.62 2.87 0.103 0.113 E 9.906 10.40 0.390 0.410 E1 4.953 5.22 0.195 0.206 DIA 3.708 3.962 0.146 0.156 e 2.29 2.79 0.090 0.110 e1 4.83 5.33 0.190 0.210 F 1.143 1.397 0.045 0.055 L 13.589 14.351 0.535 0.565 I 3.56 4.06 0.140 0.16 E DIAE1 E1 D d I L e b b1e1 A F C E DIAE1 E1 D d I L e b b1e1 A F C

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. TO-252 (T4) Package MILLIMETERS INCHES SYMBOL MIN. MAX. MIN. MAX. A 2.190 2.400 0.086 0.094 A1 0.000 0.127 0.000 0.005 B 0.880 1.650 0.035 0.065 b 0.500 0.880 0.020 0.035 b1 0.700 0.900 0.028 0.035 C 0.430 0.580 0.017 0.023 C1 0.430 0.580 0.017 0.023 D 6.350 6.730 0.250 0.265 D1 5.200 5.460 0.205 0.215 E 5.400 6.220 0.213 0.245 e 2.300 TYP 0.091 TYP e1 4.500 4.700 0.177 0.185 L 8.830 10.77 0.348 0.424 L1 2.550 2.900 0.100 0.114 L2 1.400 1.780 0.055 0.070 L3 0.350 1.020 0.014 0.040 V 3.800 4.320 0.150 0.170 D B be L V C E A D B be L V C E A D B be L V C E A

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. TO-263 (T5) Package MILLIMETER INCH SYMBOL MIN MAX MIN MAX A 4.470 4.670 0.176 0.184 A1 0.000 0.150 0.000 0.006 B 1.170 1.370 0.046 0.054 b 0.710 0.910 0.028 0.036 b1 1.170 1.370 0.046 0.054 c 0.310 0.530 0.012 0.021 c1 1.170 1.370 0.046 0.054 D 10.010 10.310 0.394 0.406 E 8.500 8.900 0.335 0.350 e 2.540 TYP 0.100 TYP e1 4.980 5.180 0.196 0.204 L 15.050 15.450 0.593 0.608 L1 5.080 5.480 0.200 0.216 L2 2.340 2.740 0.092 0.108 L3 1.300 1.700 0.051 0.067 V 5.600 REF 0.220 REF D L b e B E A c V D L b e B E A c V

Ver: 1.4 Jun 14, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw G1084Global Mixed-mode Technology Inc. TO-263T (TU) Package DIMENSIONS IN MILLIMETER DIMENSIONS IN INCH SYMBOL MIN NOM MAX MIN NOM MAX D1 6.900 REF 0.272 REF Taping Specification PACKAGE Q ’TY/REEL Q ’TY/TUBE TO-220 ----- 50 ea GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. Feed Direction Feed Direction TO-263/TO-263T Package Orientation Feed Direction Feed Direction TO-263/TO-263T Package Orientation D E B e b L V A c D E B e b L V A c