Datasheet

2 Electrical Performance Specifications
www.ti.com Electrical Performance Specifications
Table 1. Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
V
VIN
Supply voltage 4.5 28
V
V5IN
Logic supply voltage 4.75 5.25
DDR mode 2.45 2.50 2.55 V
V
VDDQ
Switching output voltage DDR2 mode 1.75 1.80 1.85
DDR3 mode 1.45 1.50 1.55
Switching output voltage
V
VDDQ(RIPp-p)
DDR2 mode, I
DDQ
= 10 A 10 40 mV
ripple
I
VDDQ
Switching output current I
VTT
= 0 A 0 10 A
V
VTT
Termination voltage output V
VDDQSNS
= V
VDDQ
V
VDDQ
/2 V
VTT output voltage
Vtt(tol) -40 40
tolerance to VTTREF
mV
Vttripple(p-p) Termination voltage ripple 0 20
Vtt_Ref Reference voltage V
VDDQSNS
= V
VDDQ
V
VDDQ
/2 V
Vtt_Ref(tol) Reference voltage tolerance I
VTTREF
< 10 mA -10 10 mV
I
VTTREF
= 0 mA, DDR2 mode,
78%
I
VDDQ
= 10 mA, V
IN
= 12 V
I
VTTREF
= 0 mA, DDR2 mode, I
VDDQ
= 1 A 88%
η Switching output efficiency
I
VTTREF
= 0 mA, DDR2 mode, I
VDDQ
= 7 A 90%
I
VTTREF
= 0 mA, DDR2 mode, I
VDDQ
= 10 A 88%
SLUU202A – SEPTEMBER 2004 – Revised November 2008 Using the TPS51116EVM 3
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