Datasheet
TPS54160
,
TPS54160A
SLVSB56C –MAY 2012–REVISED FEBRUARY 2014
www.ti.com
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
IN
Supply input voltage range 3.5 60 V
V
O
Output voltage range 0.8 58 V
I
O
Output current range 0 1.5 A
T
J
Junction Temperature –40 150 °C
7.4 Thermal Information
TPS54160
TPS54160A
THERMAL METRIC
(1)
UNITS
DGQ (10 PINS) DRC (10 PINS)
θ
JA
Junction-to-ambient thermal resistance (standard board) 62.5 40
θ
JCtop
Junction-to-case (top) thermal resistance 83 65
θ
JB
Junction-to-board thermal resistance 28 8
°C/W
ψ
JT
Junction-to-top characterization parameter 1.7 0.6
ψ
JB
Junction-to-board characterization parameter 20.1 7.5
θ
JCbot
Junction-to-case (bottom) thermal resistance 21 7.8
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
7.5 Electrical Characteristics
T
J
= –40°C to 150°C, VIN = 3.5 to 60V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY VOLTAGE (VIN PIN)
Operating input voltage 3.5 60 V
Internal undervoltage lockout threshold No voltage hysteresis, rising and falling 2.5 V
Shutdown supply current EN = 0 V, 25°C, 3.5 V ≤ VIN ≤ 60 V 1.3 4
μA
Operating : nonswitching supply current VSENSE = 0.83 V, VIN = 12 V, 25°C 116 136
ENABLE AND UVLO (EN PIN)
No voltage hysteresis, rising and falling, 25°C
0.9 1.25 1.55 V
(TPS54160)
Enable threshold voltage
No voltage hysteresis, rising and falling (TPS54160A) 1.11 1.25 1.36 V
Enable threshold +50 mV –3.8
Input current μA
Enable threshold –50 mV –0.9
Hysteresis current 1.91 2.95 3.99 μA
VOLTAGE REFERENCE
T
J
= 25°C 0.792 0.8 0.808
Voltage reference V
0.784 0.8 0.816
HIGH-SIDE MOSFET
VIN = 3.5 V, BOOT-PH = 3 V 300
On-resistance mΩ
VIN = 12 V, BOOT-PH = 6 V 200 410
ERROR AMPLIFIER
Input current 50 nA
Error amplifier transconductance (g
M
) –2 μA < I
(COMP)
< 2 μA, V
(COMP)
= 1 V 97 μMhos
–2 μA < I
(COMP)
< 2 μA, V
(COMP)
= 1 V,
Error amplifier transconductance (g
M
)
26 μMhos
during slow start
V
VSENSE
= 0.4 V
Error amplifier dc gain V
VSENSE
= 0.8 V 10,000 V/V
Error amplifier bandwidth 2700 kHz
Error amplifier source/sink V
(COMP)
= 1 V, 100-mV overdrive ±7 μA
COMP to switch current transconductance 6 A/V
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