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| Global Mixed-mode Technology Inc. 1.5V 600mA Low Dropout Regulator Features Wide Input Voltage Range 2.9V~6V Output Current in Excess of 600mA Output Voltage Accuracy 2% Quiescent Current, Typically 0.3mA Internal Short Circuit Current Limit Internal Over Temperature Protection G915 General Description The G915 positive 1.5V voltage regulator features the ability to source 600mA of output current. A low quiescent current is provided. The typical quiescent current is 0.3mA. Familiar regulator features such as over temperature and current limit protection circuits are provided to prevent it from being damaged by abnormal operating conditions. Ordering Information ORDER NUMBER G915T24U MARKING 915x TEMP. RANGE -40C ~85C PACKAGE SOT89 1 GND PIN OPTION 2 VIN 3 VOUT * For other package types, pin options and package, please contact us at sales@gmt.com.tw Order Number Identification GXXX XX X X Packing Type Pin Option Package Type Part Number PACKAGE TYPE T2 : SOT89 1 1 : VOUT 2 : VOUT 3 : GND 4 : GND 5 : VIN 6 : VIN PIN OPTION 2 GND VIN VOUT VIN GND VOUT 3 VIN GND VIN VOUT VOUT GND PACKING U : Tape & Reel B : Bag Typical Application [Note 4]: Type of COUT IO VIN C1 1F Package Type G915 IQ VOUT COUT 10F Top View Top View 1 2 3 SOT89 Ver: 1.1 Aug 04, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 1 Global Mixed-mode Technology Inc. Absolute Maximum Ratings (Note 1) Input Voltage...................................................7V Power Dissipation Internally Limited (Note2) Maximum Junction Temperature.........................150C Storage Temperature Range.........-65C TJ +150C Reflow Temperature (soldering, 10sec)............260C Continuous Power Dissipation (TA = + 25C) SOT89(1)...............................................................0.5W Thermal Resistance Junction to Case SOT89......................................................55C/W Note (1): See Recommended Minimum Footprint. G915 Operating Conditions (Note 1) Input Voltage..................................................2.9V ~ 6V Temperature Range...........................-40C TA 85C Electrical Characteristics VIN =2.5V, IO =500mA, CIN=10F, COUT =10F. All specifications apply for TA =TJ =25C. [Note 3] PARAMETER Input Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Ripple Rejection Short Circuit Current Current Limit Over Temperature Over Temperature Hysterics CONDITION 5mA < IO < 600mA 4V < VIN < 6V, IO = 10mA 10mA < IO < 600mA VIN = 5V fi = 120 Hz, 1VP-P, IO = 100mA MIN 2.9 ------------------- TYP --1.5 10 10 0.3 50 0.65 0.8 145 25 MAX 6 ------------------- UNIT V V mV mV mA dB A A C C 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, JA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA / JA. If this dissipation is exceeded, the die temperature will rise above 150C and IC will go into thermal shutdown. For the G915 in the SOT89 package is 250C/W (See Recommended Minimum Footprint). The safe operation in SOT 89 package, it can see "Typical Performance Characteristics" (Safe Operating Area). 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, aluminum or ceramic. 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 100mV 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: 1.1 Aug 04, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 2 Global Mixed-mode Technology Inc. Typical Performance Characteristics VIN =5V, CIN=1F, COUT =10F, TA =25C. unless otherwise noted.) G915 Load Transient Line Transient Short Circuit Current Start-UP Overcurrent Protection Characteristics 80 70 Ripple Rejection (dB) 60 50 40 30 20 10 0 10 100 IL=100mA IL=10mA Ripple Rejection IL=600mA VIN=4V ; COUT=10F 1000 10000 100000 1000000 Frequency (Hz) Ver: 1.1 Aug 04, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 3 Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) SOT89 Max. Power Dissipation vs. PCB Top Copper Area TAMB = 25C ; Still Air 1.8 1.6 Max. Dissipation Power (W) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 1 2 3 4 PCB Top Copper Area (in2) 5 Max. Dissipation Power (W) 1.7 1.5 1.3 1.1 0.9 0.7 0.5 25 35 45 55 TAMB (C) 65 75 G915 Unit : in2 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 SOT89 Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area ) 85 Quiescent Current vs. Temperature 400 1500 1400 Quiescent Current (A) Dropout Voltage (mV) 300 VIN=5V 200 1300 1200 1100 1000 900 800 700 0 -25 -15 -5 5 15 25 35 45 55 65 75 85 Temperature (C) 600 100 Dropout Voltage vs. IL TA=85C TA=25C TA=-25C 100 VIN=4V 200 300 400 IL (mA) 500 600 Output Voltage vs. Temperature 1.53 1.52 Output Voltage (V) 1.51 1.5 1.49 1.48 1.47 -25 -5 15 35 55 Temperature (C) 75 VIN=3V VIN=4V IL=10mA VIN=5V Output Voltage (V) 1.514 1.512 1.51 1.508 1.506 1.504 1.502 1.5 2.5 3 Output Voltage vs. VIN TA=85C IL=10mA TA=25C TA=-25C 3.5 4 4.5 VIN (V) 5 5.5 6 Recommend Minimum Footprint Ver: 1.1 Aug 04, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 4 Global Mixed-mode Technology Inc. Package Information D D1 G915 POLISH E HE A1 e C MATTE FINISH A b b1 b POLISH SOT89 (T2) Package SYMBOL A A1 b b1 C D D1 HE E e DIMENSIONS IN MILLIMETER MIN NOM MAX 1.40 0.80 0.36 0.41 038 4.40 1.40 ----2.40 2.90 1.50 1.04 0.42 0.47 0.40 4.50 1.60 ----2.50 3.00 1.60 ----0.48 0.53 0.43 4.60 1.75 4.25 2.60 3.10 MIN 0.055 0.031 0.014 0.016 0.014 0.173 0.055 ----0.094 0.114 DIMENSIONS IN INCH NOM 0.059 0.041 0.016 0.018 0.015 0.177 0.062 ----0.098 0.118 MAX 0.063 ----0.018 0.020 0.017 0.181 0.069 0.167 0.102 0.122 Package Orientation Feed Direction SOT89 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. Ver: 1.1 Aug 04, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 5 |
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