Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- THERMAL INFORMATION
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- DEVICE INFORMATION
- TYPICAL CHARACTERISTICS
- APPLICATION INFORMATION
- VDDQ Switch Mode Power Supply Control
- VREF and REFIN, VDDQ Output Voltage
- Soft-Start and Powergood
- Power State Control
- MODE Pin Configuration
- Discharge Control
- D-CAP™ Mode
- D-CAP2™ Mode Operation
- Light-Load Operation
- VTT and VTTREF
- VDDQ Overvoltage and Undervoltage Protection
- VDDQ Out-of-Bound Operation
- VDDQ Overcurrent Protection
- VTT Overcurrent Protection
- V5IN Undervoltage Lockout Protection
- Thermal Shutdown
- External Components Selection
- Layout Considerations
TPS51916
SLUSAE1D –DECEMBER 2010–REVISED JUNE 2012
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ORDERING INFORMATION
(1)
ORDERABLE DEVICE OUTPUT MINIMUM
T
A
PACKAGE PINS
NUMBER SUPPLY QUANTITY
TPS51916RUKR Tape and reel 3000
–40°C to 85°C Plastic Quad Flat Pack (QFN) 20
TPS51916RUKT Mini reel 250
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
VALUE UNIT
MIN MAX
VBST –0.3 36
VBST
(3)
–0.3 6
SW –5 30
Input voltage range
(2)
VLDOIN, VDDQSNS, REFIN –0.3 3.6 V
VTTSNS –0.3 3.6
PGND, VTTGND –0.3 0.3
V5IN, S3, S5, TRIP, MODE –0.3 6
DRVH –5 36
DRVH
(3)
–0.3 6
VTTREF, VREF –0.3 3.6
Output voltage range
(2)
V
VTT –0.3 3.6
DRVL –0.3 6
PGOOD –0.3 6
Junction temperature range, T
J
125 °C
Storage temperature range, T
STG
–55 150 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to the network ground terminal unless otherwise noted.
(3) Voltage values are with respect to the SW terminal.
THERMAL INFORMATION
TPS51916
THERMAL METRIC UNITS
QFN (20) PINS
θ
JA
Junction-to-ambient thermal resistance 94.1
θ
JCtop
Junction-to-case (top) thermal resistance 58.1
θ
JB
Junction-to-board thermal resistance 64.3
°C/W
ψ
JT
Junction-to-top characterization parameter 31.8
ψ
JB
Junction-to-board characterization parameter 58.0
θ
JCbot
Junction-to-case (bottom) thermal resistance 5.9
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