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G5111T12UF Datasheet

  • G5111T12UF

  • Micro-power Step-Up DC/DC Converters in SOT-23-5

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  • GMT

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Global Mixed-mode Technology Inc.
G5111
Micro-power Step-Up DC/DC Converters in SOT-23-5
Features
Configurable Output Voltage Up to 28V
20碌A(chǔ) Quiescent Current
<1碌A(chǔ) Shutdown Current
<1碌A(chǔ) Shutdown Pin Current
Supply Range from 2.5V to 6.5V
Low V
DS(on)
: 250mV (I
SW
=300mA)
Tiny SOT-23-5 Package
General Description
The G5111 boost converter is designed for small/ me-
dium size LCD panel of high bias voltage.
Due to a typical 20碌A(chǔ) quiescent current and 2.5V~
6.5V supply voltage range, it is suitable for battery
powered portable applications. Such as PDAs and
Handheld Computers. When the IC sets to shutdown
mode, it only consumes less than 1碌A(chǔ).
Furthermore, the 350mA current limit, 500ns fixed
minimum off-time and tiny SOT-23-5 package facili-
tates the use of smaller inductor and other sur-
face-mount components to minimize the PCB size in
those space-conscious applications.
To control the IC, no other external current is needed
for the shutdown pin. It typically consumes less than
1碌A(chǔ) of full supply range.
Applications
STN/TFT LCD Bias
Personal Digital Assistants (PDAs)
Handheld Computers
Digital Still Cameras
Cellular Phones
WebPad
White LED Driver
Local 3V to 5V Conversion
Ordering Information
ORDER
NUMBER
G5111T11U
G5111T12U
ORDER NUMBER
(Pb free)
G5111T11Uf
G5111T12Uf
MARKING
51xx
52xx
TEMP. RANGE
-40擄C ~ +85擄C
-40擄C ~ +85擄C
PACKAGE
SOT-23-5
SOT-23-5
Pin Configuration
Typical Application Circuit
SW
1
5
VCC
10碌H
V
IN
2.5V to 4.2V
VCC
SW
1M
20V
12mA
GND 2
G5111 T11
G963
FB 3
4
SHDN
SOT-23-5
G5111
SHDN
FB
62k
1碌F
4.7碌F
GND
SHDN 1
5
FB
VCC 2
G5111 T12
G963
GND 3
4
SW
SOT-23-5
Ver: 1.2
Sep 09, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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