APW7302B Datasheet, PDF (1/19 Pages) Anpec Electronics Coropration – 2A 24V 340kHz Synchronous Buck Converter

APW7302B
2A 24V 340kHz Synchronous Buck Converter
Features
General Description
• Wide Input Voltage from 4.5V to 24V
APW7302B is a 2A synchronous buck converter with inte-
• 2A Continuous Output Current
• Adjustable Output Voltage from 0.92V to 20V
• Intergrated N-MOSFET
• Fixed 340kHz Switching Frequency
• PFM/PWM mode Operation
• Stable with Low ESR Capacitors
• Power-On-Reset Detection
• Programmable Soft-Start
grated power MOSFETs. The APW7302B design with a
current-mode control scheme, can convert wide input
voltage of 4.5V to 24V to the output voltage adjustable
from 0.92V to 20V to provide excellent output voltage
regulation.
The APW7302B is equipped with an automatic PFM/PWM
mode operation. At light load, the IC operates in the PFM
mode to reduce the switching losses. At heavy load, the
IC works in PWM.
• Over-Temperature Protection
The APW7302B is also equipped with Power-on-reset,
• Over-Voltage Protection
soft- start, and whole protections (over-temperature, and
• Current-Limit Protection with Frequency Foldback ^{current-limit) into a single package.}
• Enable/Shutdown Function
• Small SOP-8P Package
This device, available SOP-8P, provides a very compact
system solution external components and PCB area.
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Simplified Application Circuit
V_IN
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUB
• Notebook Computer
Pin Configuration
APW7302B
V_OUT
APW7302B
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)
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.2 - Jan., 2012
www.anpec.com.tw