Datasheet Texas Instruments LM25018 — 数据表

制造商	Texas Instruments
系列	LM25018

7.5-48V宽输入电压，300mA恒定导通时间同步降压稳压器

数据表

PDF, 1.8 Mb, 修订版: E, 档案已发布: Nov 8, 2015

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	LM25018MR/NOPB	LM25018MRE/NOPB	LM25018MRX/NOPB	LM25018SD/NOPB	LM25018SDE/NOPB	LM25018SDX/NOPB
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes	No	No	Yes	No	Yes

	LM25018MR/NOPB	LM25018MRE/NOPB	LM25018MRX/NOPB	LM25018SD/NOPB	LM25018SDE/NOPB	LM25018SDX/NOPB
N	1	2	3	4	5	6
Pin	8	8	8	8	8	8
Package Type	DDA	DDA	DDA	NGU	NGU	NGU
Industry STD Term	HSOIC	HSOIC	HSOIC	WSON	WSON	WSON
JEDEC Code	R-PDSO-G	R-PDSO-G	R-PDSO-G	S-PDSO-N	S-PDSO-N	S-PDSO-N
Package QTY	95	250	2500	1000	250	4500
Carrier	TUBE	SMALL T&R	LARGE T&R	LARGE T&R	SMALL T&R	LARGE T&R
Device Marking	MR	MR	MR	L25018	L25018	L25018
Width (mm)	3.9	3.9	3.9	4	4	4
Length (mm)	4.89	4.89	4.89	4	4	4
Thickness (mm)	1.48	1.48	1.48	.8	.8	.8
Pitch (mm)	1.27	1.27	1.27	.8	.8	.8
Max Height (mm)	1.7	1.7	1.7	.8	.8	.8
Mechanical Data	下载	下载	下载	下载	下载	下载

Parameters / Models	LM25018MR/NOPB	LM25018MRE/NOPB	LM25018MRX/NOPB	LM25018SD/NOPB	LM25018SDE/NOPB	LM25018SDX/NOPB
Control Mode	Constant on-time (COT)	Constant on-time (COT)	Constant on-time (COT)	Constant on-time (COT)	Constant on-time (COT)	Constant on-time (COT)
Duty Cycle(Max), %	90	90	90	90	90	90
Iout(Max), A	0.3	0.3	0.3	0.3	0.3	0.3
Iq(Typ), mA	1.75	1.75	1.75	1.75	1.75	1.75
Operating Temperature Range, C	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Package Group	SO PowerPAD	SO PowerPAD	SO PowerPAD	WSON	WSON	WSON
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs	1	1	1	1	1	1
Special Features	Synchronous Rectification,UVLO Adjustable	Synchronous Rectification,UVLO Adjustable	Synchronous Rectification,UVLO Adjustable	Synchronous Rectification,UVLO Adjustable	Synchronous Rectification,UVLO Adjustable	Synchronous Rectification,UVLO Adjustable
Switching Frequency(Max), kHz	1000	1000	1000	1000	1000	1000
Switching Frequency(Min), kHz	50	50	50	50	50	50
Type	Converter	Converter	Converter	Converter	Converter	Converter
Vin(Max), V	48	48	48	48	48	48
Vin(Min), V	7.5	7.5	7.5	7.5	7.5	7.5
Vout(Max), V	40	40	40	40	40	40
Vout(Min), V	1.25	1.25	1.25	1.25	1.25	1.25

	LM25018MR/NOPB	LM25018MRE/NOPB	LM25018MRX/NOPB	LM25018SD/NOPB	LM25018SDE/NOPB	LM25018SDX/NOPB
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

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Fly-Buck(TM) converter provides EMC and isolation in PLC applications
PDF, 201 Kb, 档案已发布: Jan 29, 2015
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AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C)
PDF, 870 Kb, 修订版: C, 档案已发布: Dec 17, 2014
In many applications, one or more low-cost, simple to use, isolated power supplies working from input voltages up to 100 V are needed. Traditional solutions use flyback converters to generate this bias supply. Flyback designs typically utilize asymmetric transformers turns ratios for primary and secondary power windings, with an optocoupler and reference, or an auxiliary winding for feedback regul

系列: LM25018 (6)

Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)