Datasheet
Table Of Contents
- FEATURES
- DESCRIPTION
- APPLICATIONS
- ABSOLUTE MAXIMUM RATINGS
- DISSIPATION RATINGS
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- DEVICE INFORMATION
- DETAILED DESCRIPTION
- VDDQ SMPS, Dual PWM Operation Modes
- VDDQ SMPS, Light Load Condition
- Low-Side Driver
- High-Side Driver
- Current Sensing Scheme
- PWM Frequency and Adaptive On-Time Control
- VDDQ Output Voltage Selection
- VTT Linear Regulator and VTTREF
- Controling Outputs Using the S3 and S5 Pins
- Soft-Start and Powergood
- VDDQ and VTT Discharge Control
- Current Protection for VDDQ
- Current Protection for VTT
- Overvoltage and Undervoltage Protection for VDDQ
- V5IN (PWP), V5FILT (RGE) Undervoltage Lockout (UVLO) Protection
- V5IN (PWP), V5FILT (RGE) Input Capacitor
- Thermal Shutdown
- APPLICATION INFORMATION
- TYPICAL CHARACTERISTICS

I
VTTREF
− VTTREF Current − mA
V
VTTREF
− VTTREF Voltage − V
−10 −5 0 5 10
0.897
0.896
0.898
0.899
0.900
0.901
0.902
0.903
0.904
DDR2
−10
1.245
1.244
−5
0 5 10
1.246
1.247
1.248
1.249
1.250
1.251
1.252
I
VTTREF
− VTTREF Current − mA
V
VTTREF
− VTTREF Voltage − V
DDR
I
VTT
− VTT Output Current − A
V
VTT
− VTT Output Voltage − V
−5
1.22
1.20
−4
−3 −2 −1 0 1 2 3 4 5
1.21
1.25
1.23
1.24
1.28
1.26
1.27
1.29
1.30
V
VLDOIN
= 2.5 V
V
VLDOIN
= 1.8 V
I
VTT
− VTT Output Current − A
V
VTT
− VTT Output Voltage − V
−3
0.88
0.86
−2
−1 0 1 2 3
0.87
0.91
0.89
0.90
0.94
0.92
0.93
V
VLDOIN
= 1.5 V
V
VLDOIN
= 1.2 V
V
VLDOIN
= 1.8 V
TI Information — Selective Disclosure
TPS51116
www.ti.com
SLUS609I –MAY 2004–REVISED JANUARY 2014
TYPICAL CHARACTERISTICS (continued)
VTT OUTPUT VOLTAGE VTT OUTPUT VOLTAGE
vs vs
OUTPUT CURRENT (DDR) OUTPUT CURRENT (DDR2)
Figure 21. Figure 22.
VTTREF OUTPUT VOLTAGE VTTREF OUTPUT VOLTAGE
vs vs
OUTPUT CURRENT (DDR) OUTPUT CURRENT (DDR2)
Figure 23. Figure 24.
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