G9966 Global Mixed-mode Technology Inc. 3A Low Dropout Regulator with Enable Features General Description The G9966 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 3 Amps. Since it has superior dropout characteristics compared with regular LDOs, it can be used to supply 2.5V on motherboards or 1.5V, 1.8V, 3.3V on peripheral cards from the power supply thus allowing the elimination of costly heatsinks. An enable pin further reduces power dissipation while shut down. The G9966 provides excellent regulation over variations in line, load and temperature. It provides over current and over temperature protection functions. 1.5V, 1.8V, 2.5V, 3.3V and Adjustable Outputs Over Current and Over Temperature Protection Output Current 3A Enable Pin 20µA Quiescent Current in Shutdown TO-263-5 Package Applications Battery Powered Systems Motherboards Peripheral Cards Network Cards Set Top Boxes Notebook Computers The G9966 is available with 1.5V, 1.8V, 2.5V, 3.3V and adjustable outputs in TO-263-5 package. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Pb free) G9966-15TGU G9966-15 -40°C ~ +85°C TO-263-5 G9966-18TGU G9966-25TGU G9966-18 G9966-25 -40°C ~ +85°C -40°C ~ +85°C TO-263-5 TO-263-5 G9966-33TGU G9966-ADJTGU G9966-33 G9966 -40°C ~ +85°C -40°C ~ +85°C TO-263-5 TO-263-5 Pin Configuration Typical Application Circuit G9966-XX G9966-XX VEN VEN VIN VIN VO VO C1 220µF 1 2 3 4 GND C2 220µF 5 VEN VIN GND VO N.C. TO-263-5 G9966-ADJ G9966-ADJ VEN VEN VIN VIN VO VO R1 C1 220µF 1 2 3 4 GND ADJ C2 220µF R2 5 VEN VIN GND VO ADJ TO-263-5 1.2 (R1+R2) Volts R2 R2=12kΩ is recommended VO = TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 1 G9966 Global Mixed-mode Technology Inc. Absolute Maximum Ratings Operation Conditions (Note 1) Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .2.2V ~5.5V Temperature Range . .. . . . . . . . . . .-40°C ≤TA ≤ +85°C (Note 1) Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V VEN Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . .VIN+0.3V Power Dissipation Internally Limited (Note 2) Maximum Junction Temperature . . . . . . . . . . . . 150°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . .-65°C ≤TJ ≤ +150°C Reflow Temperature (soldering, 10sec) . . . . . .260°C Thermal Resistance Junction to Ambient, (θJA) TO-263-5(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W Thermal Resistance Junction to Case, (θJc) TO-263-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..5°C/W ESD Rating (Human Body Model) . . . . . . . . .. . . .2kV Note (1): See Recommended Minimum Footprint Electrical Characteristics VEN = VIN, VIN = 5V, IO = 0.5A, CIN = COUT = 220µF, TA = TJ = 25°C unless otherwise specified (Note 3) PARAMETER Supply Voltage Output Voltage SYMBOL VIN VO Line Regulation TYP MAX UNIT VIN = VO +0.7V, IO = 10mA 2.2 -2 --VO 5.5 2 V % VO+0.7V < VIN < 5.5V, IO = 10mA --- 0.3 2 % --- 1 2 % G9966-25 VIN = 5V, 10mA < IOUT < 3A G9966-33 VIN = 5V, 10mA < IOUT < 3A IQ Ripple Rejection Dropout Voltage MIN G9966-15 VIN = 2.5V, 10mA < IOUT < 3A G9966-18 VIN = 3.8V, 10mA < IOUT < 3A Load Regulation Quiescent Current CONDITION VD VIN = 5V --- 3 10 mA fi = 120Hz, 1VP-P, IO = 100mA G9966-15 ΔVOUT = 2%, IOUT = 3A ----- 55 0.85 --1 dB G9966-18 ΔVOUT = 2%, IOUT = 3A G9966-25 ΔVOUT = 2%, IOUT = 3A G9966-33 ΔVOUT = 2%, IOUT = 3A ----- 0.8 0.6 0.95 0.8 0.7 V --- 0.55 Short Circuit Current --- 1 --- A Over Temperature VEN Voltage High VENH Output Active --1.6 150 --- ----- °C V VEN Voltage Low VEN Bias Current Low VENL IENL Output Disabled VEN = 0.4V ----- ----- 0.4 20 V µA Shutdown Current ADJ Reference Voltage VREF VIN = 5V, VEN = 0V VIN=2.2V, VADJ=VOUT, IO=10mA --1.176 20 1.2 35 1.224 µA V --- 0.2 --- V ADJ Pin Threshold Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics. Note2: 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 (Tjmax-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. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 2 Global Mixed-mode Technology Inc. G9966 Definitions Load Regulation The change in output voltage for a change in load current at constant chip temperature. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly affected. 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 current and minimum input supply requirements. Maximum Power Dissipation The maximum total device dissipation for which the regulator will operate within specifications. 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 affected. Quiescent Bias Current Current which is used to operate the regulator chip and is not delivered to the load. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 3 G9966 Global Mixed-mode Technology Inc. Typical Performance Characteristics ViN-VOUT =3V, CIN = 220µF, COUT =220µF, TA = 25°C, unless otherwise noted. Line Transient Response Load Transient Response Short Circuit Current Ripple Rejection 70 Ripple Rejection (dB) 60 IL=1A 50 40 30 IL=2A IL=3A 20 10 0 10 100 1000 10000 100000 1000000 Frequency (Hz) G9966-33 Overcurrent Protection Characteristics G9966-33 Start-up TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 4 G9966 Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G9966-18 Overcurrent Protection Characteristics G9966-18-Start-up G9966-18-Start-up G9966 Max. Power Dissipation vs. PCB Top Copper Area G9966 Max. Power Dissipation vs. TAMB 4.5 4.5 4 4 Max. Dissipation Power (W) Max. Dissipation Power (W) G9966-33 Start-up 3.5 3 2.5 2 1.5 1 Unit:in2 A=0.5 A=1.0 3.5 A=1.5 3 A=2.0 2.5 A=2.5 2 A=3.0 1.5 A=3.5 1 A=4.0 A=4.5 0.5 0.5 0 0 A=5.0 0.5 1.5 2.5 3.5 25 4.5 PCB Top Copper Area (in2) 35 45 55 65 TAMB (°C) 75 85 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 5 G9966 Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G9966-18 Dropout Voltage vs. IL G9966-18 Quiescent Current vs. Temperature 2.0 3.0 1.8 1.6 2.5 Dropout Voltage (V) Quiescent Current (mA) IL=10mA 2.0 1.5 VIN=4V 1.4 1.2 1.0 0.8 0.6 TA=85°C 0.4 VIN=5V TA=-25°C 0.2 1.0 0.0 -25 -15 -5 5 1 15 25 35 45 55 65 75 85 Temperature (°C) G9966-18 Output Voltage vs. Temperature 1.5 2 IL (A) 2.5 3 G9966-18 Output Voltage vs. IL 1.825 1.824 IL=10mA 1.814 Output Voltage (V) 1.820 Output Voltage (V) TA=25°C 1.815 1.810 IL=5A IL=4A 1.805 1.804 1.794 VIN=4V VIN=5V 1.784 1.774 TA=25°C 1.764 1.800 5 15 25 35 45 55 Temperature (°C) 65 75 0 85 0.5 1 1.5 2 2.5 3 IL (A) G9966-33 Dropout Voltage vs.IL G9966-33 Quiescent Current vs. Temperature 4.0 1400 Dropout Voltage (mV) Quiescent Current (mA) 1200 3.5 VIN=6V 3.0 2.5 1000 800 600 400 TA=85°C VIN=5V 200 2.0 -25 -15 -5 5 0 1.0 15 25 35 45 55 65 75 85 TA=-25°C TA=25°C 1.5 2.0 2.5 3.0 IL (A) Temperature (°C) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 6 G9966 Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G9966-33 Output Voltage vs. Temperature G9966-33 Output Voltage vs. IL 3.334 3.334 3.314 3.314 VIN=6V Output Voltage (V) Output Voltage (V) TA=25°C 3.294 3.274 VIN=5V 3.254 VIN=6V 3.294 3.274 VIN=5V 3.254 IL=200mA 3.234 3.234 -25 -5 15 35 55 75 0 1 IL (A) Temperature (°C) 2 3 G9966-25 Dropout Voltage vs.IL G9966-25 Quiescent Current vs. Temperature 3.50 1800 Dropout Voltage (mV) Quiescent Current (mA) 1600 3.00 2.50 2.00 VIN=5V VIN=6V 1.50 1400 1200 1000 800 600 TA=85°C 400 TA=25°C 200 TA=-25°C 0 1.00 -25 -15 -5 5 15 25 35 45 55 65 75 1 85 1.5 2 2.5 3 IL (A) Temperature (°C) G9966-25 Output Voltage vs. IL G9966-25 Output Voltage vs. Temperature 2.55 2.59 2.54 Output Voltage (V) Output Voltage (V) TA=25°C 2.53 2.57 2.55 2.53 2.51 VIN=5V VIN=4V 2.49 2.52 2.51 2.5 2.49 VIN=4V 2.48 VIN=5V 2.47 2.47 IL=10mA 2.46 2.45 2.45 -25 -5 15 35 55 0 75 0.5 1 1.5 2 2.5 3 IL (A) Temperature (°C) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 7 Global Mixed-mode Technology Inc. G9966 Recommended Minimum Footprint TO-263-5 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 8 G9966 Global Mixed-mode Technology Inc. Package Information A E c2 L2 D L L1 e b C TO-263-5 Package Note: 1. JEDEC Outline: N/A DIMENSION IN MM MIN MAX DIMENSION IN INCH MIN MAX A 4.064 4.826 0.160 b c 0.686 0.940 0.027 C2 D 1.143 8.636 E e L 9.652 14.605 15.875 0.575 0.625 L1 L2 2.286 ----- 2.794 2.921 0.090 ----- 0.110 0.115 SYMBOL 0.381 TYP 0.190 0.037 0.015 TYP 1.397 9.652 0.045 0.340 10.287 0.380 1.702 BSC 0.055 0.380 0.405 0.067 BSC Taping Specification PACKAGE Q’TY/BY REEL TO-263-5 800 ea Feed Direction TO-263-5 Package Orientation 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. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Preliminary May 19, 2006 9