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TPS53015 Datasheet, PDF (3/21 Pages) Texas Instruments – Single Synchronous Step-down Controller for Low Voltage Power Rails
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TPS53015
SLVSBF0B – JULY 2012 – REVISED AUGUST 2012
THERMAL INFORMATION
THERMAL METRIC(1)
TPS53015
DGS (10 PINS)
UNITS
θJA
θJCtop
θJB
ψJT
ψJB
θJCbot
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
172.2
44.0
93.0
1.6
91.4
n/a
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
RECOMMENDED OPERATING CONDITIONS
Supply input voltage range
Input voltage range
Output Voltage range
TA Operating free-air temperature
TJ Operating junction temperature
VIN
VBST
VBST - SW
VFB
EN
SW
DRVH
DRVH - SW
DRVL, VREG5, PG
PGND
MIN MAX UNIT
4.5
28 V
–0.1 33.5
–0.1
5.5
–0.1
5.5 V
–0.1
28
–1.0
28
–1.0 33.5
–0.1
5.5
V
–0.1
5.5
–0.1
0.1
–40
85 °C
–40
125 °C
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range, VIN = 12 V (unless otherwise noted)
PARAMETER
CONDITIONS
SUPPLY CURRENT
IIN
IVINSDN
VIN Supply current
VIN Shutdown current
VIN current, TA = 25°C, EN = 5V, VVFB = 0.8V,
VSW = 0 V
VIN current, TA = 25°C, No Load , VEN = 0V,
VREG5 = OFF
VFB VOLTAGE and DISCHARGE RESISTANCE
VVFBTHL VFB Threshold voltage
TCVFB
VFB Temperature coefficient
IVFB
VFB Input current
VREG5 OUTPUT
TA = 25°C , VOUT = 1.05 V
Relative to TA = 25°C(1)
VFB = 0.8V, TA = 25°C
VVREG5
VREG5 Output voltage
TA=25°C, 6 V < VIN < 28 V, IVREG5 = 5 mA
IVREG5
Output current
VIN = 5.5V, VVREG5 = 4.0V, TA = 25°C
OUTPUT: N-CHANNEL MOSFET GATE DRIVERS
RDRVH
RDRVL
TD
DRVH resistance
DRVL resistance
Dead time
Source, IDRVH = –50mA, TA = 25°C
Sink, IDRVH = 50mA, TA = 25°C
Source, IDRVL = –50mA, TA = 25°C
Sink, IDRVL = 50mA, TA = 25°C
DRVH-low to DRVL-on(1)
DRVL-low to DRVH-on(1)
MIN TYP MAX UNIT
660
μA
6.0
μA
765.3
-140
-150
773.0
-10
780.7
140
100
mV
ppm/°C
nA
5.1
V
120
mA
3.2 4.7
Ω
1.4 2.4
6.9 8.2
Ω
0.8 1.7
15
ns
20
(1) Ensured by design. Not production tested.
Copyright © 2012, Texas Instruments Incorporated
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