ADT7351
General Description
The ADT7351 is a step-down converter with
integrated switching MOSFET. It operates wide
input supply voltage range from 4.5V to 28V with
3A continuous output current. It includes current
limiting protection and thermal shutdown.
It reduces design complexity and external
component count. The ADT7351 is available in
small outline SOP8-PP(with Exposed pad)
package.
Package outline of the ADT7351
Features
• Current mode buck regulator with 925kHz
fixed frequency
• Input voltage range : 4.5V to 28V
• Adjustable output range : 0.92V to 21V
• Continuous output current : 3A
• Up to 92% efficiency
• Integrated Power MOSFET switch : 80mΩ
• 10㎂ shutdown mode
• Thermal shutdown & current limit protection
• Under Voltage LOckout
Applications
- Distributed Power Systems
- Set-Top Boxes (STB)
- Surveillance Camera Modules
- Pre-regulator for Linear regulators
- Cigarette Lighter Powered Devices
- Battery Chargers
Typical Application Circuit
C5
1
BST
SW
3
D1
L1
VOUT
C2
R1
VIN
C1
2
VIN
FB
5
U1
7
R2
EN
EN
COMP
6
C3
8
C4
SS
GND
4
R3
C6
OPTION
Figure 1. Typical Application Circuit (3.3V output)
* This specifications are subject to be changed without notice
Oct. 31. 2011 / Rev0.0
3/15
http://www.ad-tech.co.kr
ADTECH [ ADTECH ]
