APW8805A Datasheet, PDF (1/19 Pages) Anpec Electronics Coropration – 3A 5V 1MHz Synchronous Buck Converter

APW8805A
3A 5V 1MHz Synchronous Buck Converter
Features
General Description
• High Efficiency up to 95%
APW8805A is a 3A synchronous buck converter with inte-
• Adjustable Output Voltage from 0.6V to V_VIN
grated 75mΩ high side and 55mΩ low side power
• Integrated 75mΩ High Side / 55mΩ Low Side ^{MOSFETs. The APW8805A, design with a current-mode}
MOSFETs
control scheme, can convert wide input voltage of 2.6V to
• Low Dropout Operation: 100% Duty Cycle
• Mode Selection
- APW8805A : Force PWM
• Stable with Low ESR Ceramic Capacitors
• Power-On-Reset Detection on VCC and VIN
6V to the output voltage adjustable from 0.6V to 6V to
provide excellent output voltage regulation.
The APW8805A is equipped with force PWM mode
opeation.
The APW8805A is also equipped with Power-on-reset,
soft-start, soft-stop, and whole protections (under-voltage,
• Integrated Soft-Start and Soft-Stop
over-voltage, over-temperature and current-limit) into a
• Over-Temperature Protection
single package.
• Over-Voltage Protection
This device, available TDFN3x3-10, provides a very com-
• Under-Voltage Protection
pact system solution external components and PCB area.
• High/ Low Side Current Limit
• Power Good Indication
• Enable/Shutdown Function
• Current-Mode Operation with Internal
Compensation
• Small TDFN3x3-10 Packages
• Lead Free and Green Devices Available
(RoHS Compliant)
Simplified Application Circuit
Applications
• Notebook Computer & UMPC
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUB
• Portable Instrument
V_IN
ON
OFF
VIN
SW
VCC
FB
APW8805A
POK
GND
EN
(option)
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.2 - Aug., 2013
www.anpec.com.tw