TPS51211

更新时间： 2024-11-23 08:38:59

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
26页	676K
描述
HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY

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TPS51211 数据手册

TPS51211

www.ti.com

SLUSAA7 –NOVEMBER 2010

HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN

CONTROLLER FOR NOTEBOOK POWER SUPPLY

FEATURES

APPLICATIONS

•

Notebook Computers

I/O Supplies

System Power Supplies

•

Wide Input Voltage Range: 3 V to 28 V

Output Voltage Range: 0.7 V to 2.6 V

Wide Output Load Range: 0 to 20A+

Built-in 0.5% 0.7 V Reference

DESCRIPTION

290-kHz, Adaptive On-Time D-CAP™ MODE

Control

The TPS51211 is a small-sized single buck controller

with adaptive on-time D-CAP™ mode. The device is

suitable for low output voltage, high current, PC

system power rail and similar point-of-load (POL)

power supply in digital consumer products. A small

package with minimal pin-count saves space on the

PCB, while a dedicated EN pin and pre-set frequency

minimize design effort required for new designs. The

skip-mode at light load condition, strong gate drivers

and low-side FET R_DS(on)current sensing supports

low-loss and high efficiency, over a broad load range.

The conversion input voltage which is the high-side

FET drain voltage ranges from 3 V to 28 V and the

output voltage ranges from 0.7 V to 2.6 V. The device

requires an external 5-V supply. The TPS51211 is

available in a 10-pin SON package specified from

–40°C to 85°C.

•

4700 ppm/°C R_DS(on)Current Sensing

Internal 1-ms Voltage Servo Soft-start

Pre-Charged Start-up Capability

Built in Output Discharge

Power Good Output

Integrated Boost Switch

Built-in OVP/UVP/OCP

Thermal Shutdown (Non-latch)

SON-10 (DSC) Package

TYPICAL APPLICATION CIRCUIT

V5IN

TPS51211

PGOOD VBST 10

TRIP

DRVH

OUT

VFB

TST

V5IN

DRVL

GND

_GND

OUT

UDG-10160

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

D-CAP is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...26

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与TPS51211相关器件

型号	品牌	获取价格	描述	数据表
TPS51211DSCR	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51211DSCT	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51215A	TI	获取价格	具有 2 位 VID 的 3V 至 28V 输入、单相 D-CAP2 控制器
TPS51215ARUKR	TI	获取价格	具有 2 位 VID 的 3V 至 28V 输入、单相 D-CAP2 控制器 \| RUK
TPS51216	TI	获取价格	Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller, 2-A LDO,
TPS51216_15	TI	获取价格	Complete DDR2 DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller
TPS51216-EP	TI	获取价格	增强型产品完整 DDR2、DDR3 和 DDR3L 存储器电源解决方案同步降压控制器
TPS51216MRUKREP	TI	获取价格	增强型产品完整 DDR2、DDR3 和 DDR3L 存储器电源解决方案同步降压控制器 \|
TPS51216RUKR	TI	获取价格	Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller, 2-A LDO,
TPS51216RUKT	TI	获取价格	Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller, 2-A LDO,

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