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Global Mixed-mode Technology - (G5130 / G5131) PSM Step-up DC/DC Converter

Numéro de référence G5130
Description (G5130 / G5131) PSM Step-up DC/DC Converter
Fabricant Global Mixed-mode Technology 
Logo Global Mixed-mode Technology 





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G5130 fiche technique
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
w w w . D a t„a SSOhTe-8e9 ta4ndUS.OcTo-2m3-5 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
54
12 3
SOT-23-5
Ver: 0.3 Preliminary
Jun 15, 2005
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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G5130 (G5130 / G5131) PSM Step-up DC/DC Converter Global Mixed-mode Technology
Global Mixed-mode Technology
G5131 (G5130 / G5131) PSM Step-up DC/DC Converter Global Mixed-mode Technology
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