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多通道 IC (PMIC)

LP3971

不推荐用于新设计

面向高级应用处理器的电源管理 IC (PMIC)

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LP3971 不推荐用于新设计
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LP3971

不推荐用于新设计
数据表 立即订购

产品详情

Configurability Factory programmable, Software configurable Vin (min) (V) 1.74 Vin (max) (V) 5.5 Vout (min) (V) 0.725 Vout (max) (V) 3.3 Iout (max) (A) 1.6 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown Iq (typ) (mA) 0.293 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 125 Processor supplier Marvell Processor name PXA Shutdown current (ISD) (typ) (µA) 0.5 Product type Processor and FPGA
Configurability Factory programmable, Software configurable Vin (min) (V) 1.74 Vin (max) (V) 5.5 Vout (min) (V) 0.725 Vout (max) (V) 3.3 Iout (max) (A) 1.6 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown Iq (typ) (mA) 0.293 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 125 Processor supplier Marvell Processor name PXA Shutdown current (ISD) (typ) (µA) 0.5 Product type Processor and FPGA
WQFN (RSB) 40 25 mm² 5 x 5
  • Compatible with Advanced Applications Processors Requiring DVM (Dynamic Voltage Management)
  • Three Buck Regulators for Powering High Current Processor Functions or I/O's
  • 6 LDO's for Powering RTC, Peripherals, and I/O's
  • Backup Battery Charger with Automatic Switch for Lithium-Manganese Coin Cell Batteries and Super Capacitors
  • I2C Compatible High Speed Serial Interface
  • Software Control of Regulator Functions and Settings
  • Precision Internal Reference
  • Thermal Overload Protection
  • Current Overload Protection
  • Tiny 40-pin 5x5 mm WQFN Package

Key Specifications

  • Buck Regulators
    • Programmable VOUT from 0.725 to 3.3V
    • Up to 95% Efficiency
    • Up to 1.6A Output Current
    • ±3% Output Voltage Accuracy
  • LDO’s
    • Programmable VOUT of 1.0V–3.3V
    • ±3% output voltage accuracy
    • 150/300/370 mA output currentsLDO RTC 30 mALDO 1 300 mALDO 2 150 mALDO 3 150 mALDO 4 150 mALDO 5 370 mA
    • 100 mV (typ) dropout

All trademarks are the property of their respective owners.

  • Compatible with Advanced Applications Processors Requiring DVM (Dynamic Voltage Management)
  • Three Buck Regulators for Powering High Current Processor Functions or I/O's
  • 6 LDO's for Powering RTC, Peripherals, and I/O's
  • Backup Battery Charger with Automatic Switch for Lithium-Manganese Coin Cell Batteries and Super Capacitors
  • I2C Compatible High Speed Serial Interface
  • Software Control of Regulator Functions and Settings
  • Precision Internal Reference
  • Thermal Overload Protection
  • Current Overload Protection
  • Tiny 40-pin 5x5 mm WQFN Package

Key Specifications

  • Buck Regulators
    • Programmable VOUT from 0.725 to 3.3V
    • Up to 95% Efficiency
    • Up to 1.6A Output Current
    • ±3% Output Voltage Accuracy
  • LDO’s
    • Programmable VOUT of 1.0V–3.3V
    • ±3% output voltage accuracy
    • 150/300/370 mA output currentsLDO RTC 30 mALDO 1 300 mALDO 2 150 mALDO 3 150 mALDO 4 150 mALDO 5 370 mA
    • 100 mV (typ) dropout

All trademarks are the property of their respective owners.

The LP3971 is a multi-function, programmable Power Management Unit, designed especially for advanced application processors. The LP3971 is optimized for low power handheld applications and provides 6 low dropout, low noise linear regulators, three DC/DC magnetic buck regulators, a back-up battery charger and two GPIO’s. A high speed serial interface is included to program individual regulator output voltages as well as on/off control.

The LP3971 is a multi-function, programmable Power Management Unit, designed especially for advanced application processors. The LP3971 is optimized for low power handheld applications and provides 6 low dropout, low noise linear regulators, three DC/DC magnetic buck regulators, a back-up battery charger and two GPIO’s. A high speed serial interface is included to program individual regulator output voltages as well as on/off control.
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类型 标题 下载最新的英语版本 日期
* 数据表 LP3971 Power Management Unit for Advanced Application Processors 数据表 (Rev. V) 2013年 5月 3日
EVM 用户指南 AN-1620 LP3971 USB Evaluation Board (Rev. A) 2013年 4月 30日
用户指南 LP3971 Smart Power Reference Design - 8 outputs User Guide 2012年 1月 27日

设计和开发

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WQFN (RSB) 40 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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