Datasheet Linear Technology LTC3531 — 数据表

制造商	Linear Technology
系列	LTC3531

200mA降压-升压型同步DC / DC转换器

数据表

PDF, 728 Kb, 修订版: B, 文件上传: Sep 21, 2017

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价格

打包

	LTC3531EDD#PBF	LTC3531EDD#TRPBF
N	1	2
Package	3x3 DFN-8 包装外形图	3x3 DFN-8 包装外形图
Package Code	DD	DD
Package Index	05-08-1698	05-08-1698
Pin Count	8	8

参数化

Parameters / Models	LTC3531EDD#PBF	LTC3531EDD#TRPBF
Architecture	Burst Mode Control	Burst Mode Control
Demo Boards	DC877A	DC877A
Design Tools	LTspice File	LTspice File
Export Control	no	no
Features	Output Disconnect, Burst Mode	Output Disconnect, Burst Mode
Integrated Inductor	no	no
Ishutdown, µA	1	1
Isupply, mA	0.016	0.016
Monolithic	yes	yes
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Output Current, A	0.2	0.2
Polyphase	no	no
Synchronous	yes	yes
Topology	Buck-Boost	Buck-Boost
Vin Max, V	5.5	5.5
Vin Min, V	1.8	1.8
Vout Max, V	5	5
Vout Min, V	2	2

生态计划

	LTC3531EDD#PBF	LTC3531EDD#TRPBF
RoHS	Compliant	Compliant

其他选择

LTC3531-3 LTC3531-3.3

文章

下载
Tiny Buck-Boost Converter for Low Current Applications &mdash LT Journal
PDF, 329 Kb, 档案已发布: Nov 21, 2006
从文件中提取
L DESIGN IDEAS Tiny Buck-Boost Converter for
Low Current Applications by Eddy Wells Introduction
One common challenge for many battery powered portable applications is
creating a regulated output voltage
above or below the input source. Traditional buck-boost approaches, such
as a dual inductor SEPIC converter or
cascaded regulators, are unacceptable
in most portable devices because of
their large solution size and low efп¬Ѓciency. Smaller footprint, integrated
charge-pump solutions can switch
between buck and boost operation, but
charge-pumps achieve good efп¬Ѓciency
at only a few operating voltages, while
efп¬Ѓciency dips below 50% at others.
Another compact and simple approach
forgoes a portion of the battery capacity and uses a buck (step-down) only
solution, but the advantages are hard
to justify when much of the battery
capacity is not used, as with certain
Li-Ion chemistries and a 3.3V output,
or with two alkaline cells and a 3.0V
or 2.5V output. two small ceramic capacitors, a miniature inductor, and the ThinSOT IC.
All versions of the part are available …

模型线

系列: LTC3531 (2)

LTC3531EDD#PBF LTC3531EDD#TRPBF

制造商分类

Power Management > Switching Regulator > Buck-Boost Regulators > Internal Power Switch Buck-Boost

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