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| 型号： | LSP3603TCAK |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, PDSO6 |
| 封装： | SOT-23, 6 PIN |
| 文件页数： | 1/7页 |
| 文件大小： | 143K |
| 代理商： | LSP3603TCAK |
Liteon Semiconductor Corporation
LSP3603
1.2 MHZ, 300mA Synchronous Step-Up Converter
Rev1.0
1/7
APPLICATIONS
Digital cameras and MP3
Palmtop computers / PDAs
Cellular phones
Wireless handsets and DSL modems
PC cards
Portable media player
PIN CONFIGURATION
(Top View)
Pin Number
Pin Name
Pin Function
1
SW
Switch Output
2
GND
Ground
3
FB
Feedback
4
EN
ON/OFF Control(High Enable)
5
VOUT
Output
6
VIN
Input
FEATURES
High Efficiency: Up to 96%
1.2MHz Constant Switching Frequency
3.3V Output Voltage at IOUT=100mA from a
Single AA Cell;
Low Start-up Voltage: 0.85V
Integrated main switch and synchronous
rectifier. No Schottky Diode Required
2.5V to 5V Output Voltage Range
Automatic Pulse Skipping Mode Operation
Tiny External Components
<1 A Shutdown Current
Anti-ringing Control Reduces EMI
Space Saving 6-Pin Thin SOT23 Package
GENERAL DESCRIPTION
The LSP3603 is a 1.2MHz constant frequency, current
mode PWM step-up converter. It can supply 3.3V
output voltage at 100mA from a single AA Cell. The
device integrates a main switch and a synchronous
rectifier for high efficiency without an external
Schottky diode. A switching frequency of 1.2MHz
allows the use of tiny, low profile inductors and
ceramic capacitors. The current mode PWM
operation with internal compensation provides
excellent line and load transient characteristics. The
LSP3603 features Pulse Skipping Mode operation at
light loads to avoid unacceptable ripple voltage.
The LSP3603 is offered in a low profile (1 mm) small
6-Pin TSOT23 Package.
2
3
6
54
1
SW
GND
FB
VIN
VOUT
EN
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