G5111 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Micro-power Step-Up DC/DC Converters in SOT23-5

Global Mixed-mode Technology Inc.
G5111
Micro-power Step-Up DC/DC Converters in SOT23-5
Features
„Configurable Output Voltage Up to 14V
„20µA Quiescent Current
„<1µA Shutdown Current
„<1µA Shutdown Pin Current
„Supply Range from 2.5V to 6.5V
„Low V_CESAT: 250mV (I_SW=300mA)
„Tiny SOT23-5 Package
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
General Description
The G5111 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 bat-
tery 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 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
1µA of full supply range.
Ordering Information
PART
G5111
TEMP. RANGE
-40°C ~ +85°C
PIN-PACKAGE
SOT23-5
Pin Configuration
Typical Application Circuit
SW 1
GND 2
FB 3
G5111
G963
SOT23-5
5 VCC
V_IN
2.5V to 4.2V
4 SHDN
10µH
4.7µF
VCC
SW
G5111
SHDN
FB
GND
12V
10mA
10pF
1M
1µF
110k
Ver 0.2 Preliminary
Jan 09, 2002
TEL: [phone]
http://www.gmt.com.tw
1