Datasheet

TPS51124
SLVS616B –NOVEMBER 2005–REVISED SEPTEMBER 2010 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)
ORDERING MINIMUM
OUTPUT
T
A
PACKAGE PART PINS ORDER
SUPPLY
NUMBER QUANTITY
Plastic Quad TPS51124RGET Tape-and-Reel 250
–40°C to 85°C 24
Flat Pack (QFN)
TPS51124RGER Tape-and-Reel 3000
(1) All packaging options have Cu NIPDAU lead/ball finish.
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
VALUE UNIT
VBST1, VBST2 –0.3 to 36
Input voltage
VBST1, VBST2 (wrt LLx) –0.3 to 6 V
range
V5IN, V5FILT, EN1, EN2, VFB1, VFB2, TRIP1, TRIP2, VO1, VO2, TONSEL –0.3 to 6
DRVH1, DRVH2 –1 to 36
DRVH1, DRVH2 (wrt LLx) –0.3 to 6
Output voltage
LL1, LL2 –2 to 30 V
range
PGOOD1, PGOOD2, DRVL1, DRVL2 –0.3 to 6
PGND1, PGND2 –0.3 to 0.3
T
A
Operating ambient temperature range –40 to 85 °C
T
stg
Storage temperature range –55 to 150 °C
T
J
Junction temperature range –40 to 125 °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. All voltage
values are with respect to the network ground terminal unless otherwise noted
DISSIPATION RATINGS
PACKAGE T
A
<25°C DERATING FACTOR T
A
= 85°C
POWER RATING ABOVE T
A
= 25°C POWER RATING
24-pin QFN
(1)
2.33 W 23.3 mW/°C 0.93 W
(1) Enhanced thermal conductance by 2 × 2 thermal vias beneath thermal pad.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Supply input voltage range V5IN, V5FILT 4.5 5.5 V
VBST1, VBST2 –0.1 34
Input voltage range VBST1, VBST2 (wrt LLx) –0.1 5.5 V
EN1, EN2, VFB1, VFB2, TRIP1, TRIP2, VO1, VO2, TONSEL –0.1 5.5
DRVH1, DRVH2 –0.8 34
DRVH1, DRVH2 (wrt LLx) –0.1 5.5
Output voltage range LL1, LL2 –1.8 28 V
PGOOD1, PGOOD2, DRVL1, DRVL2 –0.1 5.5
PGND1, PGND2 –0.1 0.1
T
A
Operating ambient temperature range –40 85 °C
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