G901 Global Mixed-mode Technology Inc. 3.3V 300mA Low Dropout Regulator Features General Description Dropout voltage typically 0.45V @ IO = 300mA Output current in excess of 300mA Output voltage accuracy +3% Quiescent current, typically 0.6mA Internal short circuit current limit Internal over temperature protection The G901 positive 3.3V voltage regulator features the ability to source 300mA of output current with a dropout voltage of typically 0.45V. A low quiescent current is provided. The typical quiescent current is 0.6mA. Familiar regulator features such as over temperature and over current protection circuits are provided to prevent it from being damaged by abnormal operating conditions. Applications CD-ROM Modem LAN Hub Networking Appliances Mouse Keyboard Ordering Information ORDER NUMBER PACKAGE TYPE G901T21U G901T24U SOT 89 SOT 89 1 PIN OPTION 2 3 VOUT GND GND VIN VIN 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 PIN OPTION T2 : SOT 89 1 1 : VOUT 2 : VOUT 3 : GND 4 : GND 5 : VIN 6 : VIN Typical Application 2 GND VIN VOUT VIN GND VOUT PACKING 3 VIN GND VIN VOUT VOUT GND U & D : Tape & Reel Direction T : Tube B : Bag Package Type [Note 4]: Type of COUT IO G901 VIN CIN 1µF VOUT + IQ Top View COUT 10µF 1 2 3 SOT 89 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.0 Mar 22, 2002 1 G901 Global Mixed-mode Technology Inc. (Note 1) Absolute Maximum Ratings Input Voltage………………………………….……….10V Power Dissipation Internally Limited (Note2) Maximum Junction Temperature………….………150°C Storage Temperature Range..….…-65°C ≤ TJ ≤+150°C Lead Temperature, Time for Wave Soldering SOT89 Package……..……..……………….....260°C, 4s Continuous Power Dissipation (TA = + 25°C) SOT 89(1)………………………….…………………..0.5W Operating Conditions (Note 1) Input Voltage…………………………...…………4V ~ 7V Temperature Range……………….…...0°C ≤ TJ ≤125°C Note (1): See Recommended Minimum Footprint. Electrical Characteristics VIN =5V, IO = 300mA, CIN=1µF, COUT =10µF. All specifications apply for TA = TJ = 25°C.[Note 3] PARAMETER Output Voltage Line Regulation Load Regulation Output Impedance Quiescent Current Ripple Rejection Dropout Voltage CONDITIONS 5mA < IO <300mA 4V < VIN < 6.5V, IO = 50mA 10mA < IO < 300mA 100mA DC and 100mA AC, fO = 120Hz VIN = 5V fi = 120 Hz, 1VP-P, Io = 100mA IO = 300mA IO = 50mA Short Circuit Current Over Temperature MIN TYP MAX UNITS 3.201 3.3 3 28 102 0.6 42 450 50 0.77 150 3.399 V mV mV mΩ mA dB 100 mV A °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, 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 G901 in SOT89 package, θJA is 250°C/W(See recommend minimum footprint). The safe operation in SOT 89, 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 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 100mV 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: 1.0 Mar 22, 2002 2 G901 Global Mixed-mode Technology Inc. Typical Performance Characteristics (VIN=5V , CIN=1µF , COUT =10µF, TA=25°C , unless otherwise noted.) Load Transient Line Transient Ch1: Iout (400mA/div) Ch2: Vout (offset=3.30V) Ch1: Vout (offset=3.30V) Ch2: Vin (offset=5.0V) Iout=100mA Dropout Voltage vs. Load Current 3.410 700 3.390 600 Dropout Voltage (mV) Output Voltage (V) Output Voltage vs. Load Current 3.370 3.350 3.330 3.310 3.290 500 400 300 200 100 3.270 0 3.250 0 50 100 150 200 250 0 300 Load Current (mA) 50 100 150 200 250 300 Load Current (mA) Ground Current vs. Load Current 1.50 1.40 Ground Current (mA) 1.30 1.20 1.10 1.00 0.90 0.80 0.70 0.60 0 50 100 150 200 250 300 Load Current (mA) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.0 Mar 22, 2002 3 G901 Global Mixed-mode Technology Inc. Safe Operating Area of SOT-89 Maximum Power Dissipation of SOT-89 450 0.7 Maximum Recommended Output Current Power Dissipation (W) Output Current (mA) 500 T A=25°C,Still Air 400 350 TA=25℃ 300 TA=55℃ 250 TA=85℃ 200 150 100 50 1oz Copper on SOT-89 Package Mounted on recommended mimimum footprint (RθJA =250℃/W ) 0.6 0.5 0.4 0.3 0.2 0.1 0 0 25 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 Input-Output Voltage Differential V IN-V OUT (V) 35 45 55 65 75 85 95 105 115 125 Amibent Temperature TA (°C) Note: V IN(max) <= 6.5V Recommend Minimum Footprint TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.0 Mar 22, 2002 4 G901 Global Mixed-mode Technology Inc. Package Information D D1 POLISH E HE A1 e C MATTE FINISH A b b1 b POLISH SOT- 89 (T2) Package SYMBOLS A A1 b b1 C D D1 HE E e DIMENSIONS IN MILLIMETERS MIN NOM MAX MIN 1.40 0.80 0.36 0.41 038 4.40 1.40 ----2.40 2.90 0.055 0.031 0.014 0.016 0.014 0.173 0.055 ----0.094 0.114 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 DIMENSIONS IN INCHES NOM MAX 0.059 0.041 0.016 0.018 0.015 0.177 0.062 ----0.098 0.118 0.063 ----0.048 0.020 0.017 0.181 0.069 0.167 0.102 0.122 Package Orientation Feed Direction SOT 89 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: 1.0 Mar 22, 2002 5