Global Mixed-mode Technology Inc.
G5103
Micro-power Step-Up DC/DC Converters in SOT-23-5
Features
Configurable Output Voltage Up to 16V
20µA Quiescent Current
<1µA Shutdown Current
<1µA 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 G5103 boost converter is designed for small/ me-
dium size LCD panel of high bias voltage.
Due to a typical 20µA 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 1µA.
Furthermore, the 350mA current limit, 500ns fixed
minimum off-time and tiny SOT23-5 package facilitates
the use of smaller inductor and other surface-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
1µA 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
G5103T11U
ORDER NUMBER
(Pb Free)
G5103T11Uf
MARKING
5103x
TEMP. RANGE
-40°C ~ +85°C
PACKAGE
SOT-23-5
Pin Configuration
Typical Application Circuit
V
IN
2.5V to 4.2V
SW
1
5
VCC
VCC
10µH
16V
12mA
SW
1M
GND 2
G5103
G963
4
SHDN
4.7µF
G5103
SHDN
GND
80.6k
FB
1µF
FB 3
SOT-23-5
Ver: 1.1
Sep 20, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
