Product Summary

The TPS51116 is a complete DDR and DDR2 memory power solution. It provides a complete power supply for both DDR/SSTL-2 and DDR2/SSTL-18 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 is at a premium. The device synchronous 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 or in current mode to support ceramic output capacitors. The applications of the TPS51116 include: DDR/DDR2 Memory Power Supplies; SSTL-2 SSTL-18 and HSTL Termination.

Parametrics

TPS51116 absolute maximum ratings: (1)VIN Input voltage range VBST: -0.3 to 36V; VBST wrt LL: -0.3 to 6V; CS, MODE, S3, S5, VTTSNS, VDDQSNS, V5IN, VLDOIN, VDDQSET: -0.3 to 6V; PGND, VTTGND: -0.3 to 0.3V; (2)VOUT Output voltage range DRVH: -1.0 to 36V; LL: -1.0 to 30V; COMP, DRVL, PGOOD, VTT, VTTREF: -0.3 to 6; (3)TA Operating ambient temperature range: -40 to 85℃; (4)Tstg Storage temperature: -55 to 150℃.

Features

TPS51116 features: (1)Wide-Input Voltage Range: 3.0-V to 28-V; (2)D–CAP Mode with 100-ns Load Step Response; (3)Current Mode Option Supports Ceramic Output Capacitors; (4)Supports Soft-Off in S4/S5 States; (5)Current Sensing from RDS(on) or Resistor; (6)2.5-V (DDR), 1.8-V (DDR2) or Adjustable Output (1.5-V to 3.0-V); (7)Equipped with Powergood, Overvoltage Protection and Undervoltage Protection.

Diagrams

TPS51116 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TPS51116
TPS51116
Other

Data Sheet
Negotiable 
TPS51116PWP
TPS51116PWP
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-1: $1.77
1-25: $1.62
25-100: $1.30
100-250: $1.13
TPS51116PWPG4
TPS51116PWPG4
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-1: $1.90
1-25: $1.76
25-100: $1.30
100-250: $1.28
TPS51116PWPR
TPS51116PWPR
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-1: $1.56
1-25: $1.27
25-100: $1.14
100-250: $0.85
TPS51116RGETG4
TPS51116RGETG4
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-1: $1.72
1-25: $1.42
25-100: $1.28
100-250: $1.18
TPS51116RGET
TPS51116RGET
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-1: $1.82
1-25: $1.48
25-100: $1.33
100-250: $1.27
TPS51116RGERG4
TPS51116RGERG4
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-2230: $0.81
2230-3000: $0.78
3000-6000: $0.75
TPS51116RGER
TPS51116RGER
Texas Instruments
DC/DC Switching Controllers DDR2 SWITCHER AND LDO
Data Sheet
0-1: $1.73
1-25: $1.39
25-100: $1.27
100-250: $1.15