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TPS54062DRBR Datasheet(PDF) 6 Page - Texas Instruments

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Part # TPS54062DRBR
Description  4.7-V to 60-V Input, 50-mA Synchronous Step-Down Converter With Low IQ
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54062DRBR Datasheet(HTML) 6 Page - Texas Instruments

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TPS54062
SLVSAV1D – MAY 2011 – REVISED JULY 2016
www.ti.com
Product Folder Links: TPS54062
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
6.4 Thermal Information
THERMAL METRIC(1)
TPS54062
UNIT
MSOP
VSON
8 PINS
8 PINS
RθJA
Junction-to-ambient thermal resistance
127.1
40.2
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
33.4
49.7
RθJB
Junction-to-board thermal resistance
80
15.7
ψJT
Junction-to-top characterization parameter
1
0.6
ψJB
Junction-to-board characterization parameter
79
15.9
RθJC(bot)
Junction-to-case (bottom) thermal resistance
N/A
4.1
(1)
The Electrical Ratings specified in this section will apply to all specifications in this document unless otherwise noted. These
specifications will be interpreted as conditions that will not degrade the device’s parametric or functional specifications for the life of the
product containing it.
6.5 Electrical Characteristics
(1)
TJ = –40°C to 125°C, VIN = 4.7 to 60 V (unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE (VIN PIN)
Operating input voltage
VIN
4.7
60
V
Shutdown supply current
EN = 0 V
1.7
µA
Iq Operating – Non-switching
VSENSE = 0.9 V, VIN = 12 V
89
110
µA
ENABLE AND UVLO (EN PIN)
Enable threshold
Rising
1.24
1.4
V
Falling
1
1.14
V
Input current
Enable threshold +50 mV
–4.7
µA
Enable threshold –50 mV
–1.2
µA
Hysteresis
3.5
µA
Enable to start switching time
450
µs
VIN
VIN start voltage
VIN rising
4.53
V
VOLTAGE REFERENCE
Voltage reference
1mA < IOUT < Minimum Current Limit
0.784
0.8
0.816
V
HIGH-SIDE MOSFET
Switch resistance
BOOT-PH = 5.7 V
1.5
2.8
Ω
LOW-SIDE MOSFET
Switch resistance
VIN = 12 V
0.8
1.5
Ω
ERROR AMPLIFIER
Input Current
VSENSE pin
20
nA
Error amp gm
–2 µA < I(COMP) < 2 µA, V(COMP) = 1 V
102
µS
EA gm during slow-start
–2 µA < I(COMP) < 2 µA, V(COMP) = 1 V, VSENSE = 0.4 V
26
µS
Error amp DC gain
VSENSE = 0.8 V
1000
V/V
Min unity gain bandwidth
0.5
MHz
Error amp source/sink
V(COMP) = 1 V, 100-mV Overdrive
±8
µA
Start Switching Threshold
0.57
V
COMP to Iswitch gm
0.65
A/V
CURRENT LIMIT
High-side sourcing current limit
threshold
VIN = 12V, BOOT-PH = 5.7 V
75
134
mA
Zero cross detect current
–0.7
mA


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