TPS51116PWPRG4

更新时间： 2024-11-01 12:02:47

品牌	Logo	应用领域
德州仪器 - TI		双倍数据速率控制器
页数	文件大小	规格书
42页	1191K
描述
COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED REFERENCE

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TPS51116PWPRG4 数据手册

TPS51116

www.ti.com................................................................................................................................................................ SLUS609H–MAY 2004–REVISED JULY 2009

COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION

SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED REFERENCE

FEATURES

DESCRIPTION

•

Synchronous Buck Controller (VDDQ)

–

Wide-Input Voltage Range: 3.0-V to 28-V

The TPS51116 provides a complete power supply for

DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory

systems. It integrates a synchronous buck controller

with a 3-A sink/source tracking linear regulator and

buffered low noise reference. The TPS51116 offers

the lowest total solution cost in systems where space

D−CAP™ Mode with 100-ns Load Step

Response

–

Current Mode Option Supports Ceramic

Output Capacitors

is at

a premium. The TPS51116 synchronous

–

Supports Soft-Off in S4/S5 States

controller runs fixed 400kHz pseudo-constant

frequency PWM with an adaptive on-time control that

can be configured in D-CAP™ Mode for ease of use

and fastest transient response or in current mode to

support ceramic output capacitors. The 3-A

sink/source LDO maintains fast transient response

only requiring 20-µF (2 × 10 µF) of ceramic output

capacitance. In addition, the LDO supply input is

available externally to significantly reduce the total

power losses. The TPS51116 supports all of the

sleep state controls placing VTT at high-Z in S3

(suspend to RAM) and discharging VDDQ, VTT and

VTTREF (soft-off) in S4/S5 (suspend to disk).

TPS51116 has all of the protection features including

thermal shutdown and is offered in both a 20-pin

HTSSOP PowerPAD™ package and 24-pin 4

QFN.

Current Sensing from R_DS(on)or Resistor

2.5-V (DDR), 1.8-V (DDR2), Adjustable to

1.5-V (DDR3) or Output Range 0.75-V to

3.0-V

–

Equipped with Powergood, Overvoltage

Protection and Undervoltage Protection

•

3-A LDO (VTT), Buffered Reference (VREF)

–

Capable to Sink and Source 3 A

LDO Input Available to Optimize Power

Losses

–

Requires only 20-µF Ceramic Output

Capacitor

–

Buffered Low Noise 10-mA VREF Output

Accuracy 20 mV for both VREF and VTT

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

Thermal Shutdown

APPLICATIONS

•

DDR/DDR2/DDR3/LPDDR3 Memory Power

Supplies

•

SSTL-2 SSTL-18 and HSTL Termination

Ceramic

IRF7821

0.1 µF

1 µH

VDDQ

1.8 V

10 A

VTT

0.9 V

2 A

IRF7832

SP−CAP

2y150 µF

VTT VLDOIN VBST DRVH LL

VTTGND

DRVL

PGND

VREF

0.9 V

10 mA

VIN

Ceramic

VTTSNS

CS_GND 17

CS 16

5.1 kΩ

2y10 µF

GND

TPS51116RGE

MODE

V5IN 15

5V_IN

5.1 Ω

VTTREF

COMP

V5FILT 14

PGOOD 13

Ceramic

1 µF

Ceramic

1 µF

100 kΩ

Ceramic

2y10 µF

NC VDDQSNS VDDQSET S3 S5 NC

PGOOD

Ceramic

0.033 µF

UDG−04153

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, PowerPAD are trademarks 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...42

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TPS51116PWPRG4 替代型号

型号	品牌	替代类型	描述	数据表
TPS51116PWPG4	TI	类似代替	全套 DDR、DDR2、DDR3、DDR3L、LPDDR3 和 DDR4 电源解决方案同步
TPS51116PWPR	TI	类似代替	COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BU
TPS51116PWP	TI	类似代替	COMPLETE DDR AND DDR2 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED

与TPS51116PWPRG4相关器件

型号	品牌	获取价格	描述	数据表
TPS51116RGE	TI	获取价格	COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BU
TPS51116RGER	TI	获取价格	COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BU
TPS51116RGERG4	TI	获取价格	全套 DDR、DDR2、DDR3、DDR3L、LPDDR3 和 DDR4 电源解决方案同步
TPS51116RGET	TI	获取价格	COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BU
TPS51116RGETG4	TI	获取价格	COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BU
TPS51117	TI	获取价格	SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER
TPS51117PW	TI	获取价格	SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER
TPS51117PWG4	TI	获取价格	SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER
TPS51117PWR	TI	获取价格	SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER
TPS51117PWRG4	TI	获取价格	SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER

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