G9218 Global Mixed-mode Technology Inc. 1.8V 2A Low Dropout Regulator with Enable Features General Description Dropout voltage 0.7V @ IO = 2A Output current in excess of 2A Output voltage accuracy ±2.5% Quiescent current, typically 1.8mA Internal short circuit current limit Internal over temperature protection TO220 4pin Full-Mold package ON/OFF control The G9218 positive 1.8V voltage regulator features the ability to source 2A of output current. The dropout voltage is 0.7V at 2A output current. The typical quiescent current is 1.8mA. Furthermore, the quiescent current is smaller when the regulator is in the dropout mode. Familiar regulator features such as over temperature and over current protection circuits are provided to prevent it from being damaged by abnormal operating conditions. A Ven pin is provided to disable the output when needed. Ordering Information ORDER NUMBER MARKING G9218TF1T G9218TH1T G9218 G9218 TEMP. RANGE PIN PACKAGE -40°C to +85°C -40°C to +85°C TO220F-4L TO220F-4L PIN OPTION 2 3 1 VIN VIN VO VO GND GND 4 VEN VEN Order Number Identification GXXXX XX X X Packing Type Pin Option Package Type Part Number PACKAGE TYPE PIN OPTION TF: TO220F-4L (short lead) TH: TO220F-4L (long lead) 1 2 VO 1.: VIN Typical Application R=5kΩ 3 GND PACKING 4 VEN T: Tube Package Type IENH VEN TO220F-4L IO VIN G9218 C1 4.7µF IQ VOUT Top View COUT 47µF 1 2 3 4 VIN VO GND VEN R=5kΩ is recommended R must be connected for current IENH restriction as VEN > VIN+0.3V TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Preliminary Apr 20, 2004 1 G9218 Global Mixed-mode Technology Inc. (Note 1) Absolute Maximum Ratings 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 Lead Temperature, Time for Wave Soldering TO220 Package………………...……….…….260°C, 10s Continuous Power Dissipation (TA = +25°C) TO220 No heatsink…………….….………….….…..1.5W TO220 with infinite heatsink………….………..….…15W (Note 1) Operating Conditions Input Voltage……………………………………..2.2V~7V Temperature Range………….………..-40°C ≤ TA ≤85°C Electrical Characteristics VIN =5V, IO = 0.5A, CIN = 4.7µF, COUT =47µF, TA = TJ = 25°C unless otherwise specified [Note 3] PARAMETER Output Voltage Line Regulation Load Regulation Quiescent Current Ripple Rejection Dropout Voltage Short Circuit Current Over Temperature Enable Voltage High Enable Voltage Low Enable Bias Current Low SYMBOL VENH VENL IENL CONDITION MIN TYP MAX UNIT IO =0.5A 2.2V < VIN < 7V, IO = 10mA 50mA < IO < 2A VIN = 3.3V fi = 120Hz, 1VP-P, IO = 100mA IO = 2A 1.755 --------------2 ----- 1.8 0.5 0.5 1.8 45 0.7 1 150 ------- 1.845 2 2 2.5 --0.9 ------0.8 20 V % % mA dB V A °C V V µA Output Active Output Disabled VEN = 0.4V 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. For the TO220F package, θJA is 60°C/W (No heat sink). 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. 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: 0.1 Preliminary Apr 20, 2004 2 Global Mixed-mode Technology Inc. G9218 Block Diagram VIN 1 2 VO THERMAL SHUTDOWN BANDGAP REFERENCE HIGH / LOW VEN 4 SHORT-CIRCUIT PROTECTION 1.25V _ + R1 OUTPUT ON/OFF R2 TTL COMPATIBLE BUFFER 3 GND TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Preliminary Apr 20, 2004 3 G9218 Global Mixed-mode Technology Inc. Typical Performance Characteristics (VIN=5V, CIN=10µF, COUT =47µF, TA=25°C, unless otherwise noted.) Line Transient Load Transient Short Circuit Current Start-UP Overcurrent Protection Characteristics Ripple Rejection 60 IL=10mA Ripple Rejection (dB) 50 40 IL=500mA 30 IL=1.0A 20 10 0 10 100 1000 10000 100000 1000000 Frequency (Hz) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Preliminary Apr 20, 2004 4 G9218 Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) VDROP vs. IL Output Voltage vs. Temperature 900 1.864 800 IL=10mA Dropout Voltage (mV) Output Voltage (V) 1.844 1.824 VIN=5.0V 1.804 VIN=3.0V 1.784 TA=85 °C 700 600 TA=25 °C 500 400 300 200 100 1.764 TA=-25 °C 0 -25 -15 -5 5 15 25 35 45 55 65 75 85 0 0.5 1 IL (A) Temperature (°C) Quiescent Current vs. Temperature 2 Output Voltage vs. VIN 2.00 1.864 1.95 IL=10mA 1.90 1.844 VIN=5.0V 1.85 Output Voltage (V) Quiescent Current (mA) 1.5 1.80 1.75 VIN=3.0V 1.70 1.65 1.60 TA=85 °C 1.824 1.804 TA=25 °C TA=-25 °C 1.784 1.55 1.50 1.764 -25 -15 -5 5 15 25 35 45 55 65 75 85 2.5 3 3.5 4 Temperature (°C) Max. Power Dissipation vs. PCB Top Copper Area 5.5 6 6.5 7 Max. Power Dissipation vs. TAMB 3 3 TAMB = 25°C ; Still Air 2.5 Max. Dissipation Power (W) Max. Dissipation Power (W) 4.5 5 VIN (V) 2 1.5 1 0.5 Unit : in2 A=0.1 still air ; Different PCB Top Copper Area 2.5 A=0.2 A=0.3 A=0.4 2 A=0.5 A=1.0 1.5 A=1.5 A=2.0 A=2.5 1 A=3.0 A=3.5 0.5 A=4.0 A=4.5 A=5.0 0 0 0 0.5 1 1.5 2 2.5 3 3.5 4 PCB Top Copper Area (in2) 4.5 25 5 35 45 55 65 TAMB (°C) 75 85 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Preliminary Apr 20, 2004 5 G9218 Global Mixed-mode Technology Inc. Package Information E1 L b D e L1 L2 E θ A C A1 A2 He TO220F-4L Package (short lead) SYMBOL A A1 A2 D E E1 L L1 L2 He C e b θ MIN. DIMENSION IN MM NOM. MAX. MIN. DIMENSION IN INCH NOM. MAX. 4.42 2.69 1.68 10.00 6.85 8.54 8.32 16.56 3.60 23.72 ------------4° 4.57 2.79 1.78 10.10 6.95 8.64 8.52 16.66 3.70 24.22 0.48 2.54(TYP) 0.635(TYP) 7° 4.72 2.89 1.88 10.20 7.05 8.74 8.72 16.76 3.80 24.72 ------------11° 0.174 0.106 0.066 0.394 0.269 0.336 0.328 0.652 0.142 0.934 ------------4° 0.180 0.110 0.070 0.398 0.273 0.340 0.335 0.656 0.146 0.953 0.019 0.1(TYP) 0.025(TYP) 7° 0.186 0.114 0.074 0.402 0.278 0.344 0.343 0.660 0.150 0.93 ------------11° TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Preliminary Apr 20, 2004 6 G9218 Global Mixed-mode Technology Inc. E1 L b D e L2 L1 E θ A C A2 A1 He TO220F-4L Package (long lead) SYMBOL A A1 A2 D E E1 L L1 L2 He C e b θ MIN. DIMENSION IN MM NOM. MAX. MIN. DIMENSION IN INCH NOM. MAX. 4.42 2.69 1.68 10.00 6.85 8.54 13.15 16.56 3.60 28.44 ------------4° 4.57 2.79 1.78 10.10 6.95 8.64 13.35 16.66 3.70 28.94 0.48 2.54(TYP) 0.635(TYP) 7° 4.72 2.89 1.88 10.20 7.05 8.74 13.55 16.76 3.80 29.44 ------------11° 0.174 0.106 0.066 0.394 0.269 0.336 0.518 0.652 0.142 1.119 ------------4° 0.180 0.110 0.070 0.398 0.273 0.340 0.526 0.656 0.146 1.139 0.019 0.1(TYP) 0.025(TYP) 7° 0.186 0.114 0.074 0.402 0.278 0.344 0.533 0.660 0.150 1.159 ------------11° 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: 0.1 Preliminary Apr 20, 2004 7