SYNCHRONOUS BOOST DC/DC CONVERTER
FSP3602
FEATURES
Up to 96% Efficiency
Low voltage start-up：0.9V
Shut-down current: < 1µA
Input voltage：0.6V�½�4.4V
Output voltage
：
2.5V
�½�
4.3V (Up to 5V with
Schottky)
Low switch on resistance R
DS(ON)
,
Internal switch: 0.35Ω
1.4MHz fixed frequency switching
High switch on current: 1A
Short-Circuit protection
Low profile SOT23-6L package
GENERAL DESCRIPTION
The FSP3602 is high efficiency synchronous, step-up
DC/DC converters optimized to provide a high efficient
solution to medium power systems. The devices work
under the input voltage between 0.6V and 4.4V with a
1.4MHz fixed frequency switching. These features
minimizes overall solution footprint by allowing the use
of tiny, low profile inductors and ceramic capacitors.
The FSP3602 is capable of supplying an output voltage
between 2.5V and 4.3V, the internal synchronous
switch is desired to provide high efficiency without
Schottky.
The devices also featured providing 180mA from a
single AA cell input or 400mA from a 2-cell AA with a
3V/3.3V output.
The FSP3602 converter is available in the industry
standard SOT23-6L power packages (or upon
request).
APPLICATIONS
Digital cameras and MP3
Palmtop computers / PDAs
Cellular phones
Wireless handsets and DSL modems
PC cards
Portable media player
PIN CONFIGURATION
(Top View)
VIN
VOUT
EN
6
5
4
1
SW
2
GND
3
FB
Pin Number
1
2
3
4
5
6
Pin Name
SW
GND
FB
EN
VOUT
VIN
Pin Function
Switch Output
Ground
Feedback
ON/OFF Control(High Enable)
Output
Input
1/5
2007-12-31
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
