Datasheet > TPS51216_15

TPS51216_15

更新时间： 2024-09-30 02:58:23

品牌	Logo	应用领域
德州仪器 - TI		双倍数据速率
页数	文件大小	规格书
30页	769K
描述
Complete DDR2 DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller

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TPS51216_15 数据手册

TPS51216

www.ti.com

SLUSAB9 –NOVEMBER 2010

Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck

Controller, 2-A LDO, Buffered Reference

Check for Samples: TPS51216

FEATURES

DESCRIPTION

•

Synchronous Buck Controller (VDDQ)

The TPS51216 provides a complete power supply for

DDR2, DDR3 and DDR3L memory systems in the

lowest total cost and minimum space. It integrates a

synchronous buck regulator controller (VDDQ) with a

2-A sink/source tracking LDO (VTT) and buffered low

noise reference (VTTREF). The TPS51216 employs

D-CAP™ mode coupled with 300 kHz/400 kHz

frequencies for ease-of-use and fast transient

response. The VTTREF tracks VDDQ/2 within

excellent 0.8% accuracy. The VTT, which provides 2-

A sink/source peak current capabilities, requires only

–

Conversion Voltage Range: 3 V to 28 V

Output Voltage Range: 0.7 V to 1.8 V

0.8% V_REFAccuracy

D-CAP™ Mode for Fast Transient Response

Selectable 300 kHz/400 kHz Switching

Frequencies

–

Optimized Efficiency at Light and Heavy

Loads with Auto-skip Function

10-mF of ceramic capacitance. In addition,

dedicated LDO supply input is available.

–

Supports Soft-Off in S4/S5 States

OCL/OVP/UVP/UVLO Protections

Powergood Output

The TPS51216 provides rich useful functions as well

as excellent power supply performance. It supports

flexible power state control, placing VTT at high-Z in

S3 and discharging VDDQ, VTT and VTTREF (soft-

off) in S4/S5 state. Programmable OCL with low-side

MOSFET R_DS(on)sensing, OVP/UVP/UVLO and

thermal shutdown protections are also available.

•

2-A LDO(VTT), Buffered Reference(VTTREF)

–

2-A (Peak) Sink and Source Current

Requires Only 10-mF of Ceramic Output

Capacitance

–

Buffered, Low Noise, 10-mA VTTREF

Output

The TPS51216 is available in a 20-pin, 3 mm × 3

mm, QFN package and is specified for ambient

temperature from –40°C to 85°C.

–

0.8% VTTREF, 20-mV VTT Accuracy

Support High-Z in S3 and Soft-Off in S4/S5

VIN

•

Thermal Shutdown

5VIN

20-Pin, 3 mm × 3 mm, QFN Package

TPS51216

PGND

VBST 15

12 V5IN

VDDQ

APPLICATIONS

DRVH 14

17 S3

16 S5

•

DDR2/DDR3/DDR3L Memory Power Supplies

SW 13

•

SSTL_18, SSTL_15, SSTL_135 and HSTL

Termination

PGND

DRVL 11

PGND 10

VREF

PGOOD 20

Powergood

REFIN

GND

VDDQSNS

VLDOIN

VTT

19 MODE

18 TRIP

VTTSNS

VTTGND

VTTREF

PGND

AGND

UDG-10138

AGND

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...30

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与TPS51216_15相关器件

型号	品牌	获取价格	描述	数据表
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,
TPS51217	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51217DSCR	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51217DSCT	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51218	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51218_16	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51218DSCR	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY

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