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TPS5420QDRQ1 Datasheet(PDF) 3 Page - Texas Instruments

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Part # TPS5420QDRQ1
Description  2-A WIDE-INPUT-RANGE STEP-DOWN SWIFT??CONVERTER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS5420QDRQ1 Datasheet(HTML) 3 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS5420-Q1
www.ti.com................................................................................................................................................... SLVS752B – NOVEMBER 2007 – REVISED JUNE 2008
TJ = –40°C to 125°C, VIN = 5.5 V to 36 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE (VIN PIN)
VSENSE = 2 V, Not switching, PH pin open
3
4.4
mA
IQ
Quiescent current
Shutdown, ENA = 0 V
18
50
µA
UNDERVOLTAGE LOCKOUT (UVLO)
Start threshold voltage, UVLO
5.3
5.5
V
Hysteresis voltage, UVLO
330
mV
VOLTAGE REFERENCE
TJ = 25°C
1.202
1.221
1.239
Voltage reference accuracy
V
IO = 0 A to 2 A
1.196
1.221
1.245
OSCILLATOR
Internally set free-running frequency
400
500
600
kHz
Minimum controllable on time
150
200
ns
Maximum duty cycle
87%
89%
ENABLE (ENA PIN)
Start threshold voltage, ENA
1.3
V
Stop threshold voltage, ENA
0.5
V
Hysteresis voltage, ENA
450
mV
Internal slow-start time (0 ~ 100%)
5.4
8
10
ms
CURRENT LIMIT
Current limit
3
4
6.5
A
Current-limit hiccup time
13
16
21
ms
THERMAL SHUTDOWN
Thermal shutdown trip point
135
162
°C
Thermal shutdown hysteresis
14
°C
OUTPUT MOSFET
VIN = 5.5 V
150
rDS(on)
High-side power MOSFET switch
m
VIN = 10 V to 36 V
110
230
Copyright © 2007–2008, Texas Instruments Incorporated
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