APW7311 Datasheet, PDF (1/16 Pages) Anpec Electronics Coropration – 3A 24V 1.3MHz synchronous Buck Converter

APW7311
3A 24V 1.3MHz synchronous Buck Converter
Features
General Description
• Wide Input Voltage from 4.5V to 24V
APW7311 is a 3A synchronous buck converter with inte-
• 3A Continuous Output Current
grated power MOSFETs. The APW7311 design with a
• Adjustable Output Voltage from 0.925V to 17V
current-mode control scheme, can convert wide input
• Intergrated High/Low Side MOSFET
voltage of 4.5V to 24V to the output voltage adjustable
• PFM/PWM mode Operation
• Fixed 1.3MHz Switching Frequency
from 0.925V to 17V to provide excellent output voltage
regulation.
The APW7311 is equipped with an automatic PFM/PWM
• Stable with Low ESR Ceramic Output Capacitors _{mode operation. At light load, the IC operates in the PFM}
• Power-On-Reset Detection
mode to reduce the switching losses. At heavy load, the
• Programmable Soft-Start
IC works in PWM.
• Over-Temperature Protection
The APW7311 is also equipped with Power-on-reset, soft-
• Current-Limit Protection with Frequency Foldback ^{start, and whole protections (over-temperature, and cur-}
• Enable/Shutdown Function
rent-limit) into a single package.
• Small SOP-8P Package
• Lead Free and Green Devices Available
This device, available SOP-8P, provides a very compact
system solution external components and PCB area.
(RoHS Compliant)
Applications
Pin Configuration
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUB
• Notebook Computer
Simplified Application Circuit
V_IN
APW7311
BS 1
VIN 2
LX 3
GND 4
9
GND
8 SS
7 EN
6 COMP
5 FB
SOP-8P
(Top View)
9 Exposed Pad
The pin 4 must be connected to the pin 9 (Exposed Pad)
APW7311
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. P.1 - Jan., 2013
www.anpec.com.tw