TPS650231 锂电池供电系统的电源管理 IC

TPS650231 描述

The TPS650231 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, and which require multiple power rails. The TPS650231 provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system. The core converter allows for on-the-fly voltage changes via serial interface, allowing the system to implement dynamic power savings. All three step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. The TPS650231 also integrates two general-purpose 200 mA LDO voltage regulators, which are enabled with an external input pin.

	TPS650231
Vin(Min)(V)	2.5
Vin(Max)(V)	6
Step-Down DC/DC Converter	3
LDO	3
Processor Name	TI DM357x , TI DM644x , TI OMAP3503/15/25/30 , TI AM3505/17 , TI OMAP-L1xx
Pin/Package	40WQFN, 49DSBGA
Topology	Multi-Channel
Regulated Outputs(#)	6

TPS650231 特性

• 1.7 A, 90% Efficient Step-Down Converter for
  Processor Core (VDCDC1)
• 1.2 A, Up to 95% Efficient Step-Down Converter for
  System Voltage (VDCDC2)
• 0.8 A, 92% Efficient Step-Down Converter for
  Memory Voltage (VDCDC3)
• 30 mA LDO/Switch for Real Time Clock (VRTC)
• 2 × 200 mA General-Purpose LDO
• Dynamic Voltage Management for Processor Core
• Preselectable LDO Voltage Using Two Digital Input Pins
• Externally Adjustable Reset Delay Time
• Battery Backup Functionality
• Separate Enable Pins for Inductive Converters
• I2CTM Compatible Serial Interface
• 85-uA Quiescent Current
• Low Ripple PFM Mode
• Thermal Shutdown Protection
• 40 Pin, 5 mm × 5 mm QFN /RSB) Package or
• 49 Ball 3 mm × 3 mm WCSP (YFF) package
• APPLICATIONS
  • Smart phones
  • Netbooks / MIDs
  • Portable Media Players

TPS650231 芯片订购指南

器件	状态	温度 (oC)	价格（美元） | Quantity	封装 | 引脚	封装数量 | 封装载体	丝印标记
TPS650231RSBR	ACTIVE	-40 to 85	3.30 | 1ku	WQFN (RSB) | 40	3000 | LARGE T&R	TPS 650231
TPS650231RSBT	ACTIVE	-40 to 85	3.80 | 1ku	WQFN (RSB) | 40	250 | SMALL T&R	TPS 650231
TPS650231YFFR	ACTIVE	-40 to 85	3.30 | 1ku	DSBGA (YFF) | 49	3000 | LARGE T&R	TPS 650231
TPS650231YFFT	ACTIVE	-40 to 85	3.80 | 1ku	DSBGA (YFF) | 49	250 | SMALL T&R	TPS 650231

TPS650231 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TPS650231RSBR	Green (RoHS & no Sb/Br)	Call TI	Level-2-260C-1 YEAR	TPS650231RSBR	TPS650231RSBR
TPS650231RSBT	Green (RoHS & no Sb/Br)	Call TI	Level-2-260C-1 YEAR	TPS650231RSBT	TPS650231RSBT
TPS650231YFFR	Green (RoHS & no Sb/Br)	SNAGCU	Level-1-260C-UNLIM	TPS650231YFFR	TPS650231YFFR
TPS650231YFFT	Green (RoHS & no Sb/Br)	SNAGCU	Level-1-260C-UNLIM	TPS650231YFFT	TPS650231YFFT

TPS650231 应用技术支持与电子电路设计开发资源下载

1. TPS650231 数据资料 dataSheet 下载.PDF
2. TI 德州仪器应用处理器的集成电源管理产品选型与价格 . xls

TPS650231 相关工具

名称	型号	公司	工具/软件类型
TPS650231 评估模块	TPS650231EVM	Texas Instruments	开发电路板/EVM