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LMR23630ADDAR Datasheet(PDF) 6 Page - Texas Instruments

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Part # LMR23630ADDAR
Description  SIMPLE SWITCHER 36-V, 3-A Synchronous Step-Down Converter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LMR23630ADDAR Datasheet(HTML) 6 Page - Texas Instruments

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LMR23630
SNVSAH2C – DECEMBER 2015 – REVISED JUNE 2017
www.ti.com
Product Folder Links: LMR23630
Submit Documentation Feedback
Copyright © 2015–2017, Texas Instruments Incorporated
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
(2)
Determine power rating at a specific ambient temperature TA with a maximum junction temperature (TJ) of 125°C (see Recommended
Operating Conditions ).
7.4 Thermal Information
THERMAL METRIC (1) (2)
DDA (8 PINS)
DRR (12 PINS)
UNIT
RθJA
Junction-to-ambient thermal resistance
42.0
41.5
°C/W
ψJT
Junction-to-top characterization parameter
5.9
0.3
°C/W
ψJB
Junction-to-board characterization parameter
23.4
16.5
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
45.8
39.1
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
3.6
3.4
°C/W
RθJB
Junction-to-board thermal resistance
23.4
16.3
°C/W
7.5 Electrical Characteristics
Limits apply over the recommended operating junction temperature (TJ) range of –40°C to +125°C, unless otherwise stated.
Minimum and maximum limits are specified through test, design or statistical correlation. Typical values represent the most
likely parametric norm at TJ = 25 °C, and are provided for reference purposes only.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER SUPPLY (VIN PIN)
VIN
Operation input voltage
HSOIC package
4.5
36
V
WSON package
4
36
VIN_UVLO
Undervoltage lockout thresholds
Rising threshold (HSOIC)
3.4
3.7
3.9
V
Falling hysteresis (HSOIC)
0.4
Rising threshold (WSON)
3.3
3.6
3.9
V
Falling threshold (WSON)
3
3.3
3.5
ISHDN
Shutdown supply current
VEN = 0 V, VIN = 4.5 V to 36 V, TJ = –40°C
to 125°C (HSOIC)
2
4
μA
VEN = 0 V, VIN = 12 V, TJ = –40°C to
125°C (WSON)
IQ
Operating quiescent current (non-
switching)
VIN =12 V, VFB = 1.1 V, TJ = –40°C to
125°C, PFM mode
75
μA
ENABLE (EN PIN)
VEN_H
Enable rising threshold voltage
1.4
1.55
1.7
V
VEN_HYS
Enable hysteresis voltage
0.4
V
VWAKE
Wake-up threshold
0.4
V
IEN
Input leakage current at EN pin
VIN = 4.5 V to 36 V, VEN= 2 V (HSOIC)
10
100
nA
VIN = 4 V to 36 V, VEN= 2 V (WSON)
nA
VIN = 4.5 V to 36 V, VEN= 36 V (HSOIC)
1
μA
VIN = 4 V to 36 V, VEN= 36 V (WSON)
μA
VOLTAGE REFERENCE (FB PIN)
VREF
Reference voltage
VIN = 4.5 V to 36 V, TJ = 25 °C (HSOIC)
0.985
1
1.015
V
VIN = 4.0 V to 36 V, TJ = 25 °C (WSON)
VIN = 4.5 V to 36 V, TJ = –40°C to 125°C
(HSOIC)
0.98
1
1.02
V
VIN = 4.0 V to 36 V, TJ = –40°C to 125°C
(WSON)
ILKG_FB
Input leakage current at FB pin
VFB= 1 V
10
nA


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