APW7507C Datasheet, PDF (1/20 Pages) Anpec Electronics Coropration – 1.5MHz, 1A Synchronous Buck Regulator

APW7507C
1.5MHz, 1A Synchronous Buck Regulator
Features
• 1A Output Continuous Current
• 1.2A Output Peak Current
• Wide 3V~5.5V Input Voltage
• Fixed 1.5MHz Switching Frequency
• Low Dropout Operating at 100% Duty Cycle
• 30µA Quiescent Current
• Integrate Synchronous Rectifier
• 0.6V Reference Voltage
• Current-Mode Operation with Internal
Compensation
- Stable with Ceramic Output Capacitors
- Fast Line Transient Response
• Short-Circuit Protection
• Over-Temperature Protection with Hysteresis
• Available in SOT-23-5/TSOT-23-5A Packages
• Lead Free and Green Devices Available
(RoHS Compliant)
General Description
APW7507C is a 1.5MHz high efficiency monolithic syn-
chronous buck regulator. Design with current mode
scheme, the APW7507C is stable with ceramic output
capacitor. Input voltage from 3V to 5.5V makes the
APW7507C ideally suited for single Li-Ion battery pow-
ered applications. 100% duty cycle provides low dropout
operation, extending battery life in portable electrical
devices. The internally fixed 1.5MHz operating frequency
allows the using of small surface mount inductors and
capacitors. The synchronous switches included inside
increase the efficiency and eliminate the need of an ex-
ternal Schottky diode.
The APW7507C is available in SOT-23-5/TSOT-23-5A
packages.
Applications
Pin Configuration
• HD STB
• BT Mouse
• PND Instrument
• Portable Instrument
Simplified Application Circuit
V_IN
C1
4.7µF
(MLCC)
1 _VIN
L1
2.2µH
SW ⁵
APW7507C
3 _{RUN FB 4}
GND
2
R1
R2
APW7507C
VIN 1
GND 2
RUN 3
5 SW
4 FB
SOT-23-5/TSOT-23-5A
(Top View)
V_OUT
C3 C2
10µF
(MLCC)
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.1 - Sep., 2016
www.anpec.com.tw