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LP3921 - Battery Charger Management/Regulator

General Description

The LP3921 is a fully integrated charger and multiregulator unit with a fully differential Boomer audio power amplifier designed for CDMA cellular phones.

Key Features

  • 1.
  • 23 Charger.
  • DC Adapter or USB Input.
  • Thermally Regulated Charge Current.
  • Under Voltage Lockout.
  • 50 to 950 mA Programmable Charge Current.
  • 3.0V to 5.5V Input Voltage Range.
  • Thermal Shutdown.
  • I2C-Compatible Interface for Controlling Charger, LDO Outputs and Enabling Audio Output.
  • LDO's 7 Low-Noise LDO’s.
  • 2 x 300 mA.
  • 3 x 150 mA.
  • 2 x 80 mA 2% (typ. ) Output Voltage Accuracy on LDO's.

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Other Datasheets by Texas Instruments

Part Number Description
LP3923 Cellular Phone Power Management
LP3905 Power Management
LP3906 Dual High-Current Step-Down DC/DC and Dual Linear Regulator
LP3907 Dual 1-A and 600-mA Buck Converters and Dual 300-mA LDO
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LP3921 www.ti.com SNVS580A – AUGUST 2008 – REVISED MAY 2013 LP3921 Battery Charger Management and Regulator Unit with Integrated Boomer™ Audio Amplifier Check for Samples: LP3921 FEATURES 1 •23 Charger – DC Adapter or USB Input – Thermally Regulated Charge Current – Under Voltage Lockout – 50 to 950 mA Programmable Charge Current • 3.0V to 5.5V Input Voltage Range • Thermal Shutdown • I2C-Compatible Interface for Controlling Charger, LDO Outputs and Enabling Audio Output • LDO's 7 Low-Noise LDO’s – 2 x 300 mA – 3 x 150 mA – 2 x 80 mA 2% (typ.