The HX7401A is a complete, cost effective,
highly-efficient power management solution that
is ideal for a wide range of portable handheld
equipment. This device integrates a compact,
high efficiency, and low voltage step-up DC/DC
converter and one power switch.
VOUT1 is a compact, high efficiency, and low
voltage step-up DC/DC converter including an
error amplifier, ramp generator, comparator,
switch pass element and driver in which providing
a stable and high efficient operation over a wide
range of load currents. It operates in stable
waveforms without external compensation.
VOUT2 is an integrated 200mQ power switch for
self-powered and bus-powered Universal Series
Bus (USB) applications. The protection functions
include current limiting at 1.4A (VIN=3.6V) to meet
USB power requirement, and thermal shutdown
to protect damage under over current condition.
特点
Low Quiescent Current: 230μA
Wide Input Voltage Range: 2V to 5V
VOUT1 Range: 3V to 5.5V
VOUT2: 1.4A Current Limit (VN=3.6V)
Efficiency up to 87%
MSOP-10L Package
应用
Battery-Powered Equipment
Motherboard USB Power Switch
Hot-Plug Power Supplies
Battery-Charger Circuits
USB Device Power Switch
Portable Instrument
PDA
DSC
LCD Panel
Wireless Equipment
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