Datasheet Texas Instruments LP8720TLX/NOPB — 数据表

LP8720
www.ti.com SNVS575B – JULY 2008 – REVISED MAY 2013 LP8720 One Step-Down DC-DC and Five Linear Regulators with I2C-Compatible Interface
Check for Samples: LP8720 FEATURES APPLICATIONS 1 2 5 Low Noise LDO’s for up to 300 mA
One High-Efficiency Synchronous Magnetic
Buck Regulator, IOUT 400 mA
– High Efficiency PFM Mode @Low IOUT
– Auto Mode PFM/PWM Switch
– Low Inductance 2.2 µH @ 2 MHz Clock
– Dynamic Voltage Scale Control
I2C-Compatible Interface for the Controlling of
Internal Registers
20-Bump 2.5 x 2.0 mm DSBGA Package DESCRIPTION
The LP8720 is a multi-function, programmable Power
Management Unit, optimized for sub block power
requirement solutions. This device integrates one
highly efficient 400 mA step-down DC-DC converter
with Dynamic Voltage Scale (DVS), five low-noise low
dropout (LDO) voltage regulators, and a 400 KHz I2Ccompatible interface to allow a host controller access
to the internal control registers of the LP8720.
Additionally, the LP8720 features programmable
power-on sequencing. KEY SPECIFICATIONS Cellular Handsets
Portable Hand-Held Products Programmable VOUT from 0.8V to 2.3V on DCDC
Automatic Soft Start on DC-DC …