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Global Mixed-mode Technology Inc.
G930/G931
3.5V 400mA Low Dropout Regulator
Features
Dropout voltage typically 0.8V @ IO = 400mA Output current in excess of 400mA Output voltage accuracy +3%/-2% Quiescent current, typically 600A Internal short circuit current limit Internal over temperature protection
General Description
The G930/G931 positive 3.5V voltage regulator features the ability to source 400mA of output current with a dropout voltage of typically 0.8V over the entire operating temperature range. A low quiescent current is provided over the entire output current range. The typical quiescent current is 0.6mA. Furthermore, the quiescent current is smaller when the regulator is in the dropout mode (VIN < 3.5V). Familiar regulator features such as over temperature and over current protection circuits are provided to prevent it from being damaged by abnormal operating conditions.
Ordering Information
ORDER NUMBER
G930T21U G931T24U
ORDER NUMBER (Pb free)
G930T21Uf G931T24Uf
PACKAGE TYPE
SOT-89 SOT-89
1
VOUT GND
PIN OPTION 2
GND VIN
3
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
T2 : SOT 89
PIN OPTION
1 1 : VOUT 2 : VOUT 3 : GND 4 : GND 5 : VIN 6 : VIN 2 GND VIN VOUT VIN GND VOUT 3 VIN GND VIN VOUT VOUT GND
PACKING
U : Tape & Reel
Typical Application
[Note 4] : Type of COUT
Package Type
IO VIN
G930
C1 0.47F IQ
VOUT COUT 10F
Top View Top View
1
2
3
SOT-89
Ver: 4.6 Jan 08, 2007 TEL: 886-3-5788833 http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
(Note 1) Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Power Dissipation Internally Limited (Note 2) Maximum Junction Temperature . . . . . . . . . . . . . . 150C Storage Temperature Range . . . .-65C TJ +150C Reflow Temperature (soldering, 10sec) . . . . . .260C Thermal Resistance Junction to Ambient, (JA) SOT-89. . . . . . . . . . . . . . . . . . . . . . . . . . . . 173C/W(1) Thermal Resistance Junction to Case, (Jc) SOT-89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25C/W
G930/G931
Absolute Maximum Ratings
Operating Conditions (Note 1) Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . .4V~6V Temperature Range . . . . . . . . . . . . . . 0C TJ 125C
Note (1) :See P.4 Recommended Minimum Footprint.
Electrical Characteristics
VIN =5V, IO = 400mA, CIN = 1F, COUT =10F, All specifications apply for TA = TJ = 25C. [Note 3] PARAMETER
Output Voltage Line Regulation Load Regulation Quiescent Current Ripple Rejection Dropout Voltage Short Circuit Current Over Temperature
CONDITIONS
5mA < IO <400mA 4V < VIN < 6V, IO = 10mA 50mA < IO < 400mA VIN = 5V fi = 120Hz, 1VP-P, Io = 100mA IO = 400mA IO = 100mA
MIN
3.43 ----0.3 -----------
TYP
3.5 3 35 0.6 50 0.8 125 1.6 150
MAX
3.605 30 50 1.5 --0.9 -------
UNITS
V mV mV mA dB V 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, 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 G930/G931 in SOT-89 package, JA is 173C/W. (See Recommended Minimum Footprint). The safe operation in SOT -89, it can see "Typical Performance Characteristics". 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 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: 4.6 Jan 08, 2007
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.)
G930/G931
Load Transient
Line Transient
Ch1: Vout (offset=3.50V) Ch2: Vin (offset=5.0V) Iout=100mA
Ch1: Iout (400mA/div) Ch2: Vout (offset=3.50V)
Output Voltage vs. Load Current
3.56 3.55 3.54 800 700
Dropout Voltage vs. Load Current
Dropout Voltage (mV)
0 100 200 300 400 500 600
600 500 400 300 200 100 0
Output Voltage (V)
3.53 3.52 3.51 3.50 3.49
Load Current (mA)
0
100
Load Current (mA)
200
300
400
Ground Current vs. Load Current
1.60 1.50 1.40
Ground Current (mA)
1.30 1.20 1.10 1.00 0.90 0.80 0.70 0.60 0 100
Load Current (mA)
200
300
400
Ver: 4.6 Jan 08, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G930/G931
SOT-89 Max.Power Dissipation vs. PCB Top Copper Area TAMB = 25C ; Still Air
3 3
SOT-89 Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area )
Unit : in
2
A=0.1 A=0.2
2.5 Max. Dissipation Power (W) Max. Dissipation Power (W)
2.5
A=0.3 A=0.4 A=0.5
2
2
A=1.0 A=1.5 A=2.0
1.5
1.5
A=2.5 A=3.0 A=3.5
1
0.5
1
A=4.0 A=4.5
0 0 1 2 3 4 5
0.5 25 35 45 55 TAMB (C) 65 75 85
A=5.0
PCB Top Copper Area (in2)
Recommended Minimum Footprint
SOT-89
Ver: 4.6 Jan 08, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
4
Global Mixed-mode Technology Inc.
Package Information
D D1
G930/G931
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
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 INCHES NOM MAX
0.059 0.041 0.016 0.018 0.015 0.177 0.062 ----0.098 0.118 0.063 ----0.018 0.020 0.017 0.181 0.069 0.167 0.102 0.122
Package Specification
PACKAGE
SOT-89
Q'TY/REEL
1,000 ea
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.
Ver: 4.6 Jan 08, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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