1FEATURES

· Wide Input Voltage Range: 4.5 V to 28 V

· 5-V/3.3-V, 100-mA, LDO Output

· Glitch Free Switch Over Circuit

· Always-On 3.3-V, 5-mA LDO Output for RTC

· 250 kHz Clock Output for Charge Pump

· Thermal Shutdown (Non-latch)

· 10Ld QFN (DRC) Package

APPLICATIONS

· Notebook Computers

· Mobile Digital Consumer Products

DESCRIPTION

The TPS51103 integrates three LDOs. The 5-V and

3.3-V LDOs are both rated at 100 mA and also

include a glitch-free switch-over feature allowing for

optimized battery life. An additional 3.3-V LDO is

designed to provide an always on power output for

the real time clock (RTC). The TPS51103 integrates

a clock output to use with an external charge pump. The TPS51103 offers an innovative solution for

optimizing the complex and multiple power rails

typically found in a Notebook Computer. The

TPS51103 is available in the 10-pin QFN package

and is specified from –40°C to 85°C.