G5130 查看數據表（PDF） - Global Mixed-mode Technology Inc
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G5130 Datasheet PDF : 11 Pages
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Global Mixed-mode Technology Inc.
G5130/G5131
PSM Step-up DC/DC Converter
Features
1~4 Cell Alkaline Battery Operating Range
Output Voltage Range: 2.5V~5.0V in 0.1V In-
crements
Minimum External Component (L, D, C)
100kHz Max. Oscillation Frequency
75% Duty Ratio
Up to 80% Efficiency
±2% High Output Voltage Accuracy
< 100ppm/°C Temperature Coefficient
SOT-89 and SOT-23-5 Small Packages
Applications
Power Source for Portable Equipments
Handheld Computers, Palmtops
Digital Still Cameras, Camcorders
Cellular Phones, Pagers
Portable Multimedia Players
General Description
The G5130/G5131 boost converter is designed for use
of main power source on portable equipments.
It consist of an oscillator, PSM control logic circuit, an
embedded power MOS (LX switch), accurate voltage
reference, error amplifier, feedback resistors, and LX
protection circuit.
Only 3 external components (includes 1 inductor, 1
diode and 1 capacitor) are needed to construct the
power application.
For larger output power application, G5131 can be
used to drive an external NPN device for more input
current.
Pin Configuration
Top View
12 3
SOT-89
5
4
12 3
SOT-23-5
Ver: 0.5 Preliminary
Aug 18, 2006
Typical Application Circuit
27µH~120µH
VIN
Battery
1N5819
G5130
LX VOUT
GND
VOUT
2.5V~5.0V
Step 0.1V
+
- 22µF~100µF
27µH~120µH
VIN
Battery
1N5819
G5131
EXT VOUT
GND
VOUT
2.5V~5.0V
Step 0.1V
+
- 22µF~100µF
TEL: 886-3-5788833
http://www.gmt.com.tw
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