SE3609 Datasheet, PDF (1/8 Pages) Seaward Electronics Inc. – 1MHz/1.2A Synchronous Boost Converter

SE3609
1MHz/1.2A Synchronous Boost Converter
General Description
Features
The SE3609 is a compact, high-efficiency,
·Wide input range: 2.6-5V input, 1.2A @5V Vout
synchronous step-up converter with power MOSFETs · 1MHz switching frequency
integrated for a single-cell Li-ion/polymer battery. This · Low RDS(ON): 110mΩ@5V NMOS and
converter consumes only 100uA quiescent current
150mΩ@5V PMOS
when no switching. When current load is light, this
· Up to 93% efficiency
converter enters burst mode to obtain high efficiency. · Accurate Reference: 0.6V Reference
When current load is heavy enough, it enters
· Under-Voltage lockout Protection
fixed-frequency PWM mode. It adopts peak current · Over-Temperature Protection
mode for fast transient response with internal
· Short Protection
compensation. This converter contains cycle-by-cycle · Internal Soft Start
current limiting and short protection circuit. It is
· 1uA Shutdown current
suitable for iPad-like computers, smart phones and · RoHS Compliant and Halogen Free
portable handheld devices. The device is packed in · Compact package: PSOP8
PSOP8 package.
Applications
·IPad- like tablet computers
·Smart phones
· Other portable devices
Typical Application
Rev1.0
Preliminary and all contents are subject to change without prior notice.
© Seaward Electronics, Inc., • www.seawardinc.com.cn • Page 1
9/4/2012