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LM5166 Datasheet(PDF) 6 Page - Texas Instruments

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Part # LM5166
Description  3-V to 65-V Input, 500-mA Synchronous Buck Converter with Ultra-Low
PDF  53 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM5166 Datasheet(HTML) 6 Page - Texas Instruments

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6
LM5166
SNVSA67A – DECEMBER 2016 – REVISED DECEMBER 2016
www.ti.com
Product Folder Links: LM5166
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
Typical values correspond to TJ = 25°C. Minimum and maximum limits are based on TJ = –40°C to +125°C. VIN = 12 V
(unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RPGOOD
PGOOD on-resistance
VFB = 1 V
80
200
Ω
VINMIN-PGOOD
Minimum required VIN for valid
PGOOD
VVIN falling
IPGOOD = 0.1 mA, VPGOOD < 0.5 V
1.2
1.65
V
IPGOOD
PGOOD off-state leakage
VFB = 1.2 V, VPGOOD = 5.5 V
10
100
nA
ENABLE / UVLO
VIN-ON
Turn-on threshold
VVIN rising
2.60
2.75
2.95
V
VIN-OFF
Turn-off threshold
VVIN falling
2.35
2.45
2.60
V
VEN-ON
EN turn-on threshold
VEN rising
1.163
1.22
1.276
V
VEN-OFF
EN turn-off threshold
VEN falling
1.109
1.144
1.178
V
VEN-HYS
EN hysteresis
76
mV
VEN-SD
EN shutdown threshold
VEN falling
0.3
0.6
V
RHYS
HYS on-resistance
VEN = 1 V
80
200
Ω
IHYS
HYS off-state leakage
VEN = 1.5 V, VHYS = 5.5 V
10
100
nA
SOFT-START
ISS
Soft-start charging current
VSS = 1 V
10
µA
TSS-INT
Soft-start rise time
SS floating
900
µs
THERMAL SHUTDOWN
TJ-SD
Thermal shutdown threshold
170
°C
TJ-SD-HYS
Thermal shutdown hysteresis
10
6.6 Switching Characteristics
Over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TON-MIN
Minimum on-time
180
ns
TON1
On-time
16 kΩ from RT to GND
280
ns
TON2
On-time
75 kΩ from RT to GND
1150
ns



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