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TPS51116 датащи(PDF) 3 Page - Texas Instruments

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номер детали TPS51116
подробное описание детали  COMPLETE DDR, DDR2, DDR3, AND LPDDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 1-A LDO, BUFFERED REFERENCE
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TPS51116-EP
www.ti.com
SLUSB52A – OCTOBER 2012 – REVISED NOVEMBER 2012
THERMAL INFORMATION
TPS51116-EP
THERMAL METRIC(1)
PWP
UNITS
20 PINS
θJA
Junction-to-ambient thermal resistance(2)
41.2
θJCtop
Junction-to-case (top) thermal resistance(3)
27.4
θJB
Junction-to-board thermal resistance(4)
23.9
°C/W
ψJT
Junction-to-top characterization parameter(5)
1.1
ψJB
Junction-to-board characterization parameter(6)
23.7
θJCbot
Junction-to-case (bottom) thermal resistance(7)
3.6
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2)
The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
(3)
The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDEC-
standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
(4)
The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
(5)
The junction-to-top characterization parameter,
ψJT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining
θJA, using a procedure described in JESD51-2a (sections 6 and 7).
(6)
The junction-to-board characterization parameter,
ψJB, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining
θJA , using a procedure described in JESD51-2a (sections 6 and 7).
(7)
The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
Spacer
RECOMMENDED OPERATING CONDITIONS
MIN
MAX
UNIT
Supply voltage, V5IN
4.75
5.25
V
VBST, DRVH
–0.1
34
LL
–0.6
28
VLDOIN, VTT, VTTSNS, VDDQSNS
–0.1
3.6
Voltage range
V
VTTREF
–0.1
1.8
PGND, VTTGND
–0.1
0.1
S3, S5, MODE, VDDQSET, CS, COMP, PGOOD,
–0.1
5.25
DRVL
Operating temperature range, TJ
–55
125
°C
ELECTRICAL CHARACTERISTICS
TJ = −55°C to 125°C, TJ = TA, VV5IN = 5 V, VLDOIN is connected to VDDQ output (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
No load, VS3 = VS5 = 5 V,
IV5IN1
Supply current 1, V5IN
0.8
2
mA
COMP connected to capacitor
No load, VS3 = 0 V,
IV5IN2
Supply current 2, V5IN
300
610
VS5 = 5 V, COMP connected to capacitor
No load, VS3 = 0 V,
IV5IN3
Supply current 3, V5IN
240
508
VS5 = 5 V, VCOMP = 5 V
μA
IV5INSDN
Shutdown current, V5IN
No load, VS3 = VS5 = 0 V
0.1
1.81
IVLDOIN1
Supply current 1, VLDOIN
No load, VS3 = VS5 = 5 V
1
10
IVLDOIN2
Supply current 2, VLDOIN
No load, VS3 = 5 V, VS5 = 0 V,
0.1
10.5
IVLDOINSDN
Standby current, VLDOIN
No load, VS3 = VS5 = 0 V
0.1
1.5
Copyright © 2012, Texas Instruments Incorporated
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