Ver: 1.2
Mar 01, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1

G5104
Global Mixed-mode Technology Inc.
300mA Alkaline Boost DC/DC Converters in SOT-23-5
Features
„ Configurable Output Voltage Up to 5.5V
„ 40µA Quiescent Current
„ <1µA Shutdown Current
„ <1µA Shutdown Pin Current
„ Supply Range from 1.7V to 5.5V
„ Low V
DS(on)
: 120mV (I
SW
=400mA)
„ Tiny SOT-23-5 Package
Applications
„ Personal Digital Assistants (PDAs)
„ Handheld Computers
„ Digital Still Cameras
„ Cellular Phones
„ WebPad
„ Local 3V to 5V Conversion
General Description
The G5104 boost converter is designed for 3.3V/5V
powered system.
Due to a typical 40µA quiescent current and 1.7V~
5.5V 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 500mA current limit, 450ns 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
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING TEMP. RANGE PACKAGE
G5104T11U G5104T1Uf 5104X -40°C ~ +85°C SOT-23-5
Note:T1: SOT-23-5
U: Tape & Reel


Pin Configuration Typical Application Circuit




G963
VCC
SHDN
SOT-23-5
G5104
5
4
1SW
2
3
GND
FB
VCC SW
SHDN FB
GND
G5104
47µF47µF
4.7µH
316k
V
IN
3V
1M
5V
300mA
10pF
(option)