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
I2C™ Compatible Serial Interface
85-µA 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

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