The MAX8662/MAX8663 power-management ICs
(PMICs) are efficient, compact devices suitable for
smart cellular phones, PDAs, Internet appliances, and
other portable devices. They integrate two synchronous
buck regulators, a boost regulator driving two to seven
white LEDs, four low-dropout linear regulators (LDOs),
and a linear charger for a single-cell Li-ion (Li+) battery.
Maxim's Smart Power Selector™ (SPS) safely distributes
power between an external power source (AC
adapter, auto adapter, or USB source), battery, and the
system load. When system load peaks exceed the
external source capability, the battery supplies supplemental
current. When system load requirements are
small, residual power from the external power source
charges the battery. A thermal-limiting circuit limits battery-charge rate and external power-source current to prevent overheating. The PMIC also allows the system to operate with no battery or a discharged battery.
The MAX8662 is available in a 6mm x 6mm, 48-pin thin
QFN package, while the MAX8663, without the LED driver,
is available in a 5mm x 5mm, 40-pin thin QFN package.
Key Features
Applications/Uses
Two 95%-Efficient 1MHz Buck Regulators
Main Regulator: 0.98V to VIN at 1200mA
Core Regulator: 0.98V to VIN at 900mA
1MHz Boost WLED Driver
Drives Up to 7 White LEDs at 30mA (max)
PWM and Analog Dimming Control
Four Low-Dropout Linear Regulators
1.7V to 5.5V Input Range
15µA Quiescent Current
Single-Cell Li+ Charger
Adapter or USB Input
Thermal-Overload Protection
Smart Power Selector (SPS)
AC Adapter/USB or Battery Source
Charger-Current and System-Load Sharing
3G Smart cellular phones
Other Handheld Devices
PDAs, portable media players (PMPs)
Portable GPS Navigation Devices (PNDs)
Key Specifications:
Switch-Mode DC-DC Power Supplies
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
Download
E-Mail
