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LP5553 Datasheet Powerwise Avs Energy Management

Manufacturer: National Semiconductor Corporation

Overview: LP5553 - PowerWise® AVS Energy Management Unit with SPMI .. March 5, 2009 LP5553 PowerWise® AVS Energy Management Unit with.

General Description

The LP5553 is a System Power Management Interface (SPMI) pliant Energy Management Unit for reducing power consumption of low power hand held applications such as dual-core processors and DSPs.

The LP5553 contains 2 advanced, digitally controlled stepdown DC/DC converters for supplying variable voltages to a SoC.

The device also incorporates 5 programmable lowdropout, low noise linear regulators for powering I/O, peripheral logic blocks, auxiliary system functions, and maintaining memory retention (dual-domain) in shutdown-mode.

Key Features

  • SPMI bus for system-level power management.
  • High-efficiency PowerWise® Technology Adaptive.
  • Voltage Scaling for intelligent energy management in AVS and DVS environments Two digitally programmable 3.6 MHz buck regulators to power dual voltage domains Five Programmable LDOs for system functions such as:.
  • PLL/Clock Generation.
  • I/O.
  • Memory Retention Internal soft start Variable regulator power up sequencing.

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