ADT7220 Datasheet, PDF (1/6 Pages) ADTech – power supply chip with 3.3V regulated output

General Description
The ADT7220 is a power supply chip with 3.3V
regulated output. It is composed of one PWM
controller and one LDO regulator. It provides the
pure and excellent regulated output voltage.
ADT7220
654
A33
123
Package outline of the ADT7220
Features
Applications
• Input voltage range : 7V to 15V
• DC-DC Converter for 3.3V output
• Regulated output voltage : 3.3V
• CCD Camera module
• 350mA output load current available
• Navigation & Portable Devices
• PWM controller with built-in compensation components
• Externally composed LDO pass transistor
• 500kHz fixed frequency internal oscillator
• Over voltage protection
• Small outline SOT-26 package (2.9mm x 1.6mm body)
Typical Application Circuit
VIN
(12V)
C2
U1
VIN
DRV
GND
OUT
PWM
FB
(ADT7220)
L1
C1
Q1
OUT
C3
* This specifications are subject to be changed without notice
Jun. 16. 2008 / Rev. 0.1
1/6
http://www.ad-tech.co.kr