Datasheet Linear Technology LTC3531 — Datenblatt

Hersteller	Linear Technology
Serie	LTC3531

200mA Buck-Boost-Synchron-DC / DC-Wandler

Datenblätter

PDF, 728 Kb, Revision: B, Datei hochgeladen: Sep 21, 2017

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Preise

Verpackung

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

Parameter

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

Öko-Plan

	LTC3531EDD#PBF	LTC3531EDD#TRPBF
RoHS	Compliant	Compliant

Andere Optionen

LTC3531-3 LTC3531-3.3

Artikel

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Tiny Buck-Boost Converter for Low Current Applications &mdash LT Journal
PDF, 329 Kb, Datei veröffentlicht: Nov 21, 2006
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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 …

Modellreihe

Serie: LTC3531 (2)

LTC3531EDD#PBF LTC3531EDD#TRPBF

Herstellerklassifikation

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

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