APW7312 Datasheet, PDF (1/20 Pages) Anpec Electronics Coropration – 2A 24V 340kHz synchronous Buck Converter

APW7312
2A 24V 340kHz synchronous Buck Converter
Features
General Description
• Wide Input Voltage from 4.5V to 24V
APW7312 is a 2A synchronous buck converter with inte-
• 2A Continuous Output Current
grated power MOSFETs. The APW7312 design with a cur-
• Adjustable Output Voltage from 0.925V to 20V
rent-mode control scheme, can convert wide input volt-
• Intergrated High/Low Side MOSFET
age of 4.5V to 24V to the output voltage adjustable from 0.
• PFM/PWM mode Operation
• Fixed 340kHz Switching Frequency
925V to 20V to provide excellent output voltage regulation.
The APW7312 is equipped with an automatic PFM/PWM
mode operation. At light load, the IC operates in the PFM
• Stable with Low ESR Ceramic Output Capacitors _{mode to reduce the switching losses. At heavy load, the}
• Power-On-Reset Detection
IC works in PWM.
• Programmable Soft-Start
The APW7312 is also equipped with Power-on-reset, soft-
• Over-Temperature Protection
start, soft-stop, and whole protections (under-voltage,
• Current-Limit Protection with Frequency Foldback ^{over-temperature, and current-limit) into a single package.}
• Enable/Shutdown Function
This device, available SOP-8, provides a very compact
• Small SOP-8 Package
system solution external components and PCB area.
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Pin Configuration
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUB
• Notebook Computer
Simplified Application Circuit
V_IN
BS 1
VIN 2
LX 3
GND 4
APW7312
SOP-8
(Top View)
8 SS
7 EN
6 COMP
5 FB
APW7312
V_OUT
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.5 - Apr., 2013
www.anpec.com.tw