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TPS51916RUKR Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS51916RUKR
Description  Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS51916RUKR Datasheet(HTML) 4 Page - Texas Instruments

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TPS51916
SLUSAE1D – DECEMBER 2010 – REVISED JUNE 2012
www.ti.com
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range, VV5IN = 5 V, VLDOIN is connected to VDDQ output, VMODE= 0 V, VS3= VS5= 5 V
(unless otherwise noted)
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
IV5IN(S0)
V5IN supply current, in S0
TA = 25°C, No load, VS3 = VS5 = 5 V
590
μA
IV5IN(S3)
V5IN supply current, in S3
TA = 25°C, No load, VS3 = 0 V, VS5 = 5 V
500
μA
IV5INSDN
V5IN shutdown current
TA = 25°C, No load, VS3 = VS5 = 0 V
1
μA
IVLDOIN(S0)
VLDOIN supply current, in S0
TA = 25°C, No load, VS3 = VS5 = 5 V
5
μA
IVLDOIN(S3)
VLDOIN supply current, in S3
TA = 25°C, No load, VS3 = 0 V, VS5 = 5 V
5
μA
IVLDOINSDN
VLDOIN shutdown current
TA = 25°C, No load, VS3 = VS5 = 0 V
5
μA
VREF OUTPUT
IVREF = 30 μA, TA = 25°C
1.8000
VVREF
Output voltage
0
μA ≤ IVREF <300 μA, TA = –10°C to 85°C
1.7856
1.8144
V
0
μA ≤ IVREF <300 μA, TA = –40°C to 85°C
1.7820
1.8180
IVREFOCL
Current limit
VVREF = 1.7 V
0.4
0.8
mA
VTTREF OUTPUT
VVTTREF
Output voltage
VVDDQSNS/2
V
|IVTTREF| <100 μA, 1.2 V ≤ VVDDQSNS ≤ 1.8 V
49.2%
50.8%
VVTTREF
Output voltage tolerance to VVDDQ
|IVTTREF| <10 mA, 1.2 V ≤ VVDDQSNS ≤ 1.8 V
49%
51%
IVTTREFOCLSRC
Source current limit
VVDDQSNS = 1.8 V, VVTTREF= 0 V
10
18
mA
IVTTREFOCLSNK
Sink current limit
VVDDQSNS = 1.8 V, VVTTREF = 1.8 V
10
17
mA
IVTTREFDIS
VTTREF discharge current
TA = 25°C, VS3 = VS5 = 0 V, VVTTREF = 0.5 V
0.8
1.3
mA
VTT OUTPUT
VVTT
Output voltage
VVTTREF
V
|IVTT| ≤ 10 mA, 1.2 V ≤ VVDDQSNS ≤ 1.8 V, IVTTREF= 0 A
–20
20
|IVTT| ≤ 1 A, 1.2 ≤ VVDDQSNS ≤ 1.8 V, IVTTREF= 0 A
–30
30
VVTTTOL
Output voltage tolerance to VTTREF
mV
|IVTT| ≤ 2 A, 1.4 V ≤ VVDDQSNS ≤ 1.8 V, IVTTREF= 0 A
–40
40
|IVTT| ≤ 1.5 A, 1.2 V ≤ VVDDQSNS ≤ 1.4 V, IVTTREF= 0 A
–40
40
IVTTOCLSRC
Source current limit
VVDDQSNS = 1.8 V, VVTT = VVTTSNS = 0.7 V, IVTTREF= 0 A
2
3
A
IVTTOCLSNK
Sink current limit
VVDDQSNS = 1.8V, VVTT = VVTTSNS = 1.1 V, IVTTREF= 0 A
2
3
IVTTLK
Leakage current
TA = 25°C , VS3 = 0 V, VS5 = 5 V, VVTT = VVTTREF
5
IVTTSNSBIAS
VTTSNS input bias current
VS3 = 5 V, VS5 = 5 V, VVTTSNS = VVTTREF
–0.5
0.0
0.5
μA
IVTTSNSLK
VTTSNS leakage current
VS3 = 0 V, VS5 = 5 V, VVTTSNS = VVTTREF
–1
0
1
TA = 25°C, VS3 = VS5 = 0 V, VVDDQSNS = 1.8 V,
IVTTDIS
VTT Discharge current
7.8
mA
VVTT = 0.5 V, IVTTREF= 0 A
VDDQ OUTPUT
VVDDQSNS
VDDQ sense voltage
VREFIN
VDDQSNS regulation voltage
VVDDQSNSTOL
TA = 25°C
–3
3
mV
tolerance to REFIN
IVDDQSNS
VDDQSNS input current
VVDDQSNS = 1.8 V
39
μA
IREFIN
REFIN input current
VREFIN = 1.8 V
–0.1
0.0
0.1
μA
VS3 = VS5 = 0 V, VVDDQSNS = 0.5 V, MODE pin pulled
IVDDQDIS
VDDQ discharge current
12
mA
down to GND through 47k
Ω (Non-tracking)
VS3 = VS5 = 0 V, VVDDQSNS = 0.5 V, MODE pin pulled
IVLDOINDIS
VLDOIN discharge current
1.2
A
down to GND through 100k
Ω (Non-tracking)
SWITCH MODE POWER SUPPLY (SMPS) FREQUENCY
VIN = 12 V, VVDDQSNS = 1.8 V, RMODE = 100 kΩ
300
VIN = 12 V, VVDDQSNS = 1.8 V, RMODE = 200 kΩ
400
fSW
VDDQ switching frequency
kHz
VIN = 12 V, VVDDQSNS = 1.8 V, RMODE = 1 kΩ
500
VIN = 12 V, VVDDQSNS = 1.8 V, RMODE = 12 kΩ
670
tON(min)
Minimum on time
DRVH rising to falling(1)
60
ns
tOFF(min)
Minimum off time
DRVH falling to rising
200
320
450
(1)
Ensured by design. Not production tested.
4
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Copyright © 2010–2012, Texas Instruments Incorporated


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