APW7304 Datasheet, PDF (1/19 Pages) Anpec Electronics Coropration – 4A 24V 340kHz synchronous Buck Converter

APW7304
4A 24V 340kHz synchronous Buck Converter
Features
General Description
• Wide Input Voltage from 4.5V to 24V
APW7304 is a 4A synchronous buck converter with inte-
• 4A Peak Output Current
grated power MOSFETs. The APW7304 design with a cur-
• Adjustable Output Voltage from 0.8V to 20V
rent-mode control scheme, can convert wide input volt-
• Intergrated N-MOSFET
age of 4.5V to 24V to the output voltage adjustable from 0.
• Fixed 340kHz Switching Frequency
8V to 20V to provide excellent output voltage regulation.
The APW7304 is equipped with an automatic PFM/PWM
• 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 APW7304 is also equipped with Power-on-reset, soft-
• Over-Temperature Protection
start, and whole protections (over-temperature, and cur-
• Current-Limit Protection with Frequency Foldback rent-limit) into a single package.
• Enable/Shutdown Function
• Small SOP-8P Packages
This device, available SOP-8P, provides a very compact
system solution external components and PCB area.
• Lead Free and Green Devices Available
(RoHS Compliant)
Pin Configuration
Applications
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUB
• Notebook Computer
APW7304
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)
Simplified Application Circuit
V_IN
APW7304
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.3 - Apr., 2013
www.anpec.com.tw