G901 ETC | Alldatasheet

Document overview

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Technical content

Features

„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

Applications

„CD-ROM „Modem „LAN Hub „Networking Appliances „Mouse „Keyboard General Description 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.

Ordering Information

PIN OPTION ORDER NUMBER PACKAGE TYPE 1 2 3 G901T21U SOT 89 V OUT GND V IN G901T24U SOT 89 GND V IN V OUT * 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 P i n O p t i o n Package Type P a r t N u m b e r PACKAGE TYPE PIN OPTION PACKING T2 : SOT 89 1 2 3 U & D : Tape & Reel Direction 1 : V OUT GND V IN T : Tube 2 : V OUT V IN GND B : Bag 3 : GND V OUT V IN 4 : GND V IN V OUT 5 : V IN GND V OUT 6 : V IN V OUT GND Typical Application Package Type [Note 4]: Type of COUT Top View 1 2 3 SOT 89 G901 IQ IO VOUTVIN COUT 10µF CIN 1µF Top View 1 2 3 SOT 89 Top View 1 2 3 SOT 89 G901 IQ IO VOUTVIN COUT 10µF CIN 1µF G901 IQ IO IO VOUTVIN COUT 10µF CIN 1µF

Ver: 1.0 Mar 22, 2002 TEL: 886-3-5788833 http://www.gmt.com.tw G901 Global Mixed-mode Technology Inc. Absolute Maximum Ratings (Note 1) Power Dissipation Internally Limited (Note2) Maximum Junction Temperature………….………150°C Storage Temperature Range..….…-65°C ≤ T J ≤+150°C Lead Temperature, Time for Wave Soldering Continuous Power Dissipation (T A = + 25°C) Note (1): See Recommended Minimum Footprint. Operating Conditions (Note 1)

Electrical Characteristics

VIN =5V, IO = 300mA, CIN=1µF, COUT =10µF. All specifications apply for TA = TJ = 25°C.[Note 3] PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage 5mA < IO <300mA 3.201 3.3 3.399 V Line Regulation 4V < VIN < 6.5V, IO = 50mA 3 mV Load Regulation 10mA < IO < 300mA 28 mV Output Impedance 100mA DC and 100mA AC, fO = 120Hz 102 m Ω Quiescent Current VIN = 5V 0.6 mA Ripple Rejection fi = 120 Hz, 1VP-P, Io = 100mA 42 dB IO = 300mA 450 Dropout Voltage IO = 50mA 50 100 mV Short Circuit Current 0.77 A Over Temperature 150 °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. Note 2: The maximum power dissipation is a function of the maximum junction temperature, T Jmax; total thermal re- sistance, θJA, and ambient temperature T A. 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 pos- sible. Note4: The type of output capacitor should be tantalum or aluminum. Definitions Dropout Voltage The input/output Voltage differential at which the regu- lator 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 cur- rent 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 af- fected. Load Regulation The change in output voltage for a change in load current at constant chip temperature. The measure- ment is made under conditions of low dissipation or by using pulse techniques such that average chip tem- perature 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: 1.0 Mar 22, 2002 TEL: 886-3-5788833 http://www.gmt.com.tw G901 Global Mixed-mode Technology Inc. Typical Performance Characteristics (VIN=5V , CIN=1µF , COUT =10µF, TA=25°C , unless otherwise noted.) 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 0 50 100 150 200 250 300 Load Current (mA) Ground Current (mA) 3.250 3.270 3.290 3.310 3.330 3.350 3.370 3.390 3.410 0 50 100 150 200 250 300 Load Current (mA) Output Voltage (V) 100 200 300 400 500 600 700 0 50 100 150 200 250 300 Load Current (mA) Dropout Voltage (mV) Line Transient Load Transient Output Voltage vs. Load Current Ch1: Vout (offset=3.30V) Ch2: Vin (offset=5.0V) Iout=100mA Ch1: Iout (400mA/div) Ch2: Vout (offset=3.30V) Dropout Voltage vs. Load Current Ground Current vs. Load Current

Ver: 1.0 Mar 22, 2002 TEL: 886-3-5788833 http://www.gmt.com.tw G901 Global Mixed-mode Technology Inc. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 25 35 45 55 65 75 85 95 105 115 125 Amibent Temperature TA (°C) Power Dissipation (W) Note: V IN(max) <= 6.5V 100 150 200 250 300 350 400 450 500 Input-Output Voltage Differential V IN-VOUT (V) Output Current (mA) TA=25 ℃ TA=55 ℃ TA=85 ℃ Maximum Recommended Output Current Safe Operating Area of SOT-89 1oz Copper on SOT-89 Package Mounted on recommended mimimum footprint (R θJA=250℃/W) TA=25°C,Still Air Maximum Power Dissipation of SOT-89 Recommend Minimum Footprint

Ver: 1.0 Mar 22, 2002 TEL: 886-3-5788833 http://www.gmt.com.tw G901 Global Mixed-mode Technology Inc.

Package Information

SOT- 89 (T2) Package DIMENSIONS IN MILLIMETERS DIMENSIONS IN INCHES SYMBOLS MIN NOM MAX MIN NOM MAX 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. Feed Direction Feed Direction D E HE e b bb1 A POLISH MATTE FINISH C POLISH D E HE e b bb1 A POLISH MATTE FINISH C POLISH