G9205

Global Mixed-mode Technology Inc. G9205 5V 2A Low Dropout Regulator with Disable Features Dropout voltage 0.5V @ IO = 2A Output current in excess of 2A Output voltage accuracy ±2.5% Quiescent current, typically 5mA Internal short circuit current limit Internal over temperature protection TO-220 4pin Full-Mold package ON/OFF control General Description The G9205 positive 5V voltage regulator features the ability to source 2A of output current. The dropout voltage is 0.5V at 2A output current. The typical quiescent current is 5mA. Furthermore, the quiescent current is smaller when the regulator is in the dropout mode (VIN < 5.5V). 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 Vdis pin is provided to disable the output when needed. Ordering Information ORDER NUMBER G9205TF1T G9205TH1T ORDER NUMBER (Pb free) G9205TF1Tf G9205TH1Tf MARKING G9205 G9205 TEMP. RANGE -40°C to +85°C -40°C to +85°C PACKAGE TO-220F-4 TO-220F-4 1 VIN VIN 2 VO VO PIN OPTION 3 4 GND GND Vdis Vdis Order Number Identification GXXXX XX X X Packing Type Pin Option Package Type Part Number PACKAGE TYPE TF: TO-220F-4 (short lead) TH: TO-220F-4 (long lead) 1 1.: VIN PIN OPTION 2 VO 3 GND 4 Vdis PACKING T : Tube Package Type TO-220F-4 Typical Application ON/OFF IO VIN Top View C1 4.7µF VIN VO GND Vdis G9205 IQ VOUT COUT 47µF 12 3 4 Ver: 0.7 Preliminary Nov 22, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 1 Global Mixed-mode Technology Inc. Absolute Maximum Ratings (Note 1) Input Voltage……………………….…….…………….8V Vdis Voltage……………………………..………………8V 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 Continuous Power Dissipation (TA = +25°C) TO-220 No heatsink…….……………….….….….1.5W TO-220 with infinite heatsink…………….…..……15W Electrical Characteristics G9205 Operating Conditions (Note 1) Input Voltage.…………………………………5.5V~7V Temperature Range……….…..…...-40°C ≤ TA ≤85°C VIN =7V, 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 Disable Voltage High Disable Voltage Low Disable Bias Current High Disable Bias Current Low VdisH VdisL IdisH IdisL Output Active Output Disabled Vdis = 2.7V Vdis = 0.4V SYMBOL CONDITION IO = 0.5A 5.5V < VIN < 7V, IO = 10mA 50mA < IO < 2A VIN = 5.5V fi = 120Hz, 1VP-P, IO = 100mA IO = 2A MIN 4.88 --------------2.0 ------- TYP 5 0.5 0.5 5 45 --3.8 150 --------- MAX 5.12 2 2 10 --0.5 ------0.8 20 20 UNIT V % % mA dB V A °C V V µA µA 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 TO-220 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 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. 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. 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. 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: 0.7 Preliminary Nov 22, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 2 Global Mixed-mode Technology Inc. Block Diagram G9205 2 VO VIN 1 THERMAL SHUTDOWN 1.25V SHORT-CIRCUIT SHORT-CIRCUIT PROTECTION BANDGAP REFERENCE _ + R1 HIGH / LOW Vdis 4 OUTPUT ON/OFF R2 TTL COMPATIBLE BUFFER 3 GND Ver: 0.7 Preliminary Nov 22, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 3 Global Mixed-mode Technology Inc. Typical Performance Characteristics VIN= 7V, CIN=10µF, COUT=47µF, TA=25°C, unless otherwise noted. Line Transient Response G9205 Load Transient Response Short Circuit Current 60 50 Ripple Rejection (dB) 40 30 20 10 0 -10 -20 10 IL=10mA Ripple Rejection IL=2A IL=1A (VIN-VOUT)>VDROPOUT VRIPPLE