Datasheet4U Logo Datasheet4U.com

LP3917 - CDMA Cellular Phone Power Management

Datasheet Summary

Description

LP3917 is a complete Power Management Unit designed for CDMA cellular phones.

Features

  • Two high efficiency Synchronous Magnetic Buck Regulators, IOUT 800 mA and 600 mA High efficiency PFM mode @ low IOUT Auto Mode PFM/PWM switch Low inductance 2.2 uH @ 2 MHz clock 9 Low Noise LDO's 3 x 300 mA 5 x 150 mA 1 x 80 mA SW controllable LDO outputs USB 2.0 compatible Transceiver (12 Mbps) Thermal Shutdown with Early Warning Alarm Very low Sleep mode current Battery Voltage Monitor output Interrupt Request for reducing SW polling Ultra small 3.5x3.5 mm Micro SMDxt 49 bump package.

📥 Download Datasheet

Datasheet preview – LP3917

Datasheet Details

Part number LP3917
Manufacturer National Semiconductor
File Size 206.80 KB
Description CDMA Cellular Phone Power Management
Datasheet download datasheet LP3917 Datasheet
Additional preview pages of the LP3917 datasheet.

📁 Similar Datasheet

  • LP3910 - Power Management (Texas Instruments)
  • LP3913 - Power Management (Texas Instruments)
  • LP3918 - Battery Charge Management/Regulator (Texas Instruments)
  • LP3905 - Power Management (Texas Instruments)
  • LP3906 - Dual High-Current Step-Down DC/DC and Dual Linear Regulator (Texas Instruments)
  • LP3907 - Dual 1-A and 600-mA Buck Converters and Dual 300-mA LDO (Texas Instruments)
  • LP3907-Q1 - Dual 1-A and 600-mA Buck Converters and Dual 300-mA LDO (Texas Instruments)
  • LP3921 - Battery Charger Management/Regulator (Texas Instruments)
  • LP3923 - Cellular Phone Power Management (Texas Instruments)
  • LP3931 - Dual RGB LED Driver (Texas Instruments)
Other Datasheets by National Semiconductor
  • LP3910 - Power Management
  • LP3913 - Power Management
  • LP3919 - CDMA Power Management
  • LP3905 - Power Management Unit For Low Power Handheld Applications
  • LP3906 - Dual High Current Step Down DC/DC and Dual Linear Regulator
  • LP3907 - Dual High-Current Step-Down DC/DC and Dual Linear Regulator
  • LP3921 - Battery Charger Management/Regulator
  • LP3923 - Cellular Phone Power Management

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com LP3917 CDMA Cellular Phone Power Management Unit December 2006 LP3917 CDMA Cellular Phone Power Management Unit General Description LP3917 is a complete Power Management Unit designed for CDMA cellular phones. LP3917 PMU contains 9 low noise low dropout voltage regulators, 2 buck regulators, an USB Transceiver, two comparators and a high speed serial interface to program on/off conditions and output voltages of individual regulators, and to read status information of the PMU. Buck regulators have an automatic switch to PFM mode at low load conditions allowing very good efficiency also at low output currents. LDO regulators provide very low noise, 35 uV typ, ideally suited for supplying voltage to RF section.
Published: |