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LMR38020_V01

更新时间： 2024-01-04 13:18:19
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德州仪器 - TI /
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32页 1436K
描述
LMR38020 SIMPLE SWITCHER® 4.2-V to 80-V, 2-A Synchronous Buck Converter with 40-μA IQ

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LMR38020_V01 数据手册

 浏览型号LMR38020_V01的Datasheet PDF文件第1页浏览型号LMR38020_V01的Datasheet PDF文件第2页浏览型号LMR38020_V01的Datasheet PDF文件第3页浏览型号LMR38020_V01的Datasheet PDF文件第5页浏览型号LMR38020_V01的Datasheet PDF文件第6页浏览型号LMR38020_V01的Datasheet PDF文件第7页 
LMR38020  
www.ti.com  
SNVSC40B – AUGUST 2021 – REVISED NOVEMBER 2021  
7 Specifications  
7.1 Absolute Maximum Ratings  
Over junction temperature range of -40°C to 150°C (unless otherwise noted)(1)  
MIN  
MAX  
85  
UNIT  
VIN to PGND  
–0.3  
–0.3  
–0.3  
–0.3  
–0.3  
–0.3  
–3.5  
–0.3  
–40  
V
V
EN to PGND  
VIN+0.3  
5.5  
Input voltage  
FB to PGND  
V
RT/SYNC to PGND  
CBOOT to SW  
5.5  
V
5.5  
V
SW to PGND  
85  
V
Output voltage  
SW to PGND less than 10-ns transients  
PGOOD to PGND  
85.3  
20  
V
V
Junction Temperature TJ  
Storage temperature, Tstg  
150  
150  
°C  
°C  
–65  
(1) Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute Maximum Ratings do not imply  
functional operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions.  
If used outside the Recommended Operating Conditions but within the Absolute Maximum Ratings, the device may not be fully  
functional, and this may affect device reliability, functionality, performance, and shorten the device lifetime.  
ESD Ratings  
MIN  
MAX  
UNIT  
Human body model (HBM), per  
ANSI/ESDA/JEDEC JS-001(1)  
–2000  
2000  
V(ESD)  
Electrostatic discharge  
V
Charged device model (CDM),  
–500  
500  
per ANSI/ESDA/JEDEC JS-002(2)  
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.  
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.  
7.2 Recommended Operating Conditions  
Over the recommended operating junction temperature range of -40°C to 150°C (unless otherwise noted) (1)  
MIN  
NOM  
MAX  
UNIT  
V
Input voltage  
Input voltage  
Input voltage  
Input voltage  
Output voltage  
Output voltage  
Frequency  
Input voltage range after start-up  
EN to PGND  
4.2  
80  
VIN  
5
V
RT to PGND  
V
PGOOD to PGND  
20  
V
SW to PGND  
80  
V
Output voltage range for adjustable version (2)  
Frequency adjustment range  
Synchronization frequency range  
Output DC current range (LMR38010)(3)  
Output DC current range (LMR38020)(3)  
Operating junction temperature TJ range (4)  
1
200  
300  
0
75  
V
2200  
2100  
1
kHz  
kHz  
A
Sync frequency  
Load current  
Load current  
Temperature  
0
2
A
–40  
150  
°C  
(1) Recommended operating conditions indicate conditions for which the device is intended to be functional, but do not ensure specific  
performance limits. For compliant specifications, see the Electrical Characteristics table.  
(2) Under no conditions should the output voltage be allowed to fall below zero volts.  
(3) Maximum continuous DC current may be derated when operating with high switching frequency, high ambient temperature, or both.  
See the Application and Implementation section for details.  
(4) High junction temperatures degrade operating lifetimes. Operating lifetime is de-rated for junction temperatures greater than 150℃.  
Copyright © 2021 Texas Instruments Incorporated  
4
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Product Folder Links: LMR38020  
 
 
 
 
 
 
 
 
 
 
 
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