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G5130 Schematic ( PDF Datasheet ) - Global Mixed-mode Technology

Teilenummer G5130
Beschreibung (G5130 / G5131) PSM Step-up DC/DC Converter
Hersteller Global Mixed-mode Technology
Logo Global Mixed-mode Technology Logo 




Gesamt 10 Seiten
G5130 Datasheet, Funktion
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
1






G5130 Datasheet, Funktion
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN= +3.0V, L=100µH, TA=25°C, unless otherwise noted.)
G5130/G5131
Output Voltage vs Output Current
3.6
3.5 VOUT=3.3V
3.4
3.0V
3.3
3.2
www.DataSheet4U.com
3.1
1.5V
2.0V
2.5V
3
0 50 100 150 200
Output Current (mA)
Output Voltage vs Output Current
5.4
5.2 VOUT=5.0V
5
1.5V
4.8
2.0V
2.5V
3.0V
4.6
4.4
4.2
0
50 100 150 200
Output Current (mA)
250
Output Voltage vs Temperature
3.5
3
V OUT =3.3V
2.5
2
1.5
1
0.5
0
-40 -20
0 20 40 60
Temperature (°C)
80 100
Ripple Voltage vs Output Current
300
3.0V
250
200
150
100
50
0
0
1.5V
2.5V
2.0V
V OUT =3.3V
COUT =22µF
50 100 150
Output Current (mA)
200
Output Voltage vs Temperature
5.5
5
4.5
4 VOUT=5.0V
3.5
3
2.5
2
1.5
1
0.5
0
-40 -20
0 20 40 60
Temperature (°C)
80
100
450
400
350
300
250
200
150
100
50
0
0
Ripple Voltage vs Output Current
2.5V
3.0V
2.0V
1.5V
V OUT =5.0V
COUT =22µF
50 100 150 200
Output Current (mA)
250
Ver: 0.3 Preliminary
Jun 15, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
6

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