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.