LP5551SQ

• 2 300 mA buck regulator reduces EMI phase difference by 180 degrees
• PWM switching frequency of 1 MHz
• 4 I/O (both), PLL and memory retention supply a generation of programmable LDOs ideal for a generation.
• Supports high-efficiency PowerWise adaptive voltage regulation technology
• PWI open standard interface, system power management
• CNC intelligent voltage adjustment
• Automatic or PWI control of PFM mode conversion
• Internal soft start/start sequence.
• Adjustable P and N trap threshold ratio bias power supply
• The power supply is output normally.

illustrate

The LP5551 is a PWI 1.0 standard energy reduction power stand-alone device, such as baseband or application processor mobile phone processor consumption management system.

The LP5551 includes two advanced digitally controlled switching regulators that provide variable voltage processor core and memory. Two regulations offer P- and N- and threshold bias for extended applications. The device also integrates 4 programmable LDO regulators for driving I/O, PLL and memory retention in downtime mode.

The device opens the standard interface by controlling PWI. Operates and works with the LP5551 PowerWise™ technology-compatible processor to optimize supply voltage adaptive multiprocess and temperature change or dynamically use frequency/voltage pre-feature lookup tables and provide threshold scale bias for P- and N-traps.

apply

• Dual-core processor
• GSM/GPRS/EDGE and UMTS cellular phones
• Handheld radio station
• handheld computer
• Battery-powered devices
• Portable instrument