Datasheet Linear Technology LTC3442 — Datenblatt

Hersteller	Linear Technology
Serie	LTC3442

Synchroner Buck-Boost-DC / DC-Wandler mit Mikropower und automatischem Burst-Modus

Datenblätter

PDF, 573 Kb, Revision: B, Datei hochgeladen: Sep 21, 2017

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Verpackung

	LTC3442EDE#PBF	LTC3442EDE#TRPBF
N	1	2
Package	4x3 DFN-12 Paketumrisszeichnung	4x3 DFN-12 Paketumrisszeichnung
Package Code	DE/UE	DE/UE
Package Index	05-08-1695	05-08-1695
Pin Count	12	12

Parameter

Parameters / Models	LTC3442EDE#PBF	LTC3442EDE#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC799A	DC799A
Design Tools	LTspice File	LTspice File
Export Control	no	no
Features	Output Disconnect, Burst Mode, Resistor Set Frequency	Output Disconnect, Burst Mode, Resistor Set Frequency
Frequency, kHz	2000	2000
Frequency Adjust Range	300kHz - 2MHz	300kHz - 2MHz
Frequency Sync Range	300kHz - 2MHz	300kHz - 2MHz
Integrated Inductor	no	no
Ishutdown, µA	0.1	0.1
Isupply, mA	0.035	0.035
Monolithic	yes	yes
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Output Current, A	1.2	1.2
Polyphase	no	no
Synchronous	yes	yes
Topology	Buck-Boost	Buck-Boost
Vin Max, V	5.5	5.5
Vin Min, V	2.4	2.4
Vout Max, V	5.25	5.25
Vout Min, V	2.4	2.4

Öko-Plan

	LTC3442EDE#PBF	LTC3442EDE#TRPBF
RoHS	Compliant	Compliant

Artikel

Herunterladen
Versatile Buck-Boost Converter Offers High Efficiency in a Wide Variety of Applications &mdash LT Journal
PDF, 1.3 Mb, Datei veröffentlicht: Jun 10, 2005
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DESIGN FEATURES Versatile Buck-Boost Converter
Offers High Efп¬Ѓciency in a Wide
by Dave Salerno
Variety of Applications
Introduction L1 5ВµH Miniature hard disk drives are a popular storage medium for MP3 music п¬Ѓles,
digital photographs and other data
stowed in the latest portable electronics. Likewise lithium-ion batteries are
popular for these same devices, which
presents a minor problem in that mini
disk drives typically require a 3.3V
supply, which is right in the middle
of the lithium-ion batteryвЂ™s operating
range (3.0V-to-4.2V). This requires a
converter that can both step down a
fully-charged Li-Ion battery and step
up the same battery as it discharges
to sub-3.3V levels.
The LTC3442 is a 1.2A buck-boost
converter that is ideal for mini disk
drive applications, and certainly for
other buck-boost appliations as well.
The LTC3442 extends battery life with
95% efп¬Ѓciency and п¬Ѓts into tight spaces …

Modellreihe

Serie: LTC3442 (2)

LTC3442EDE#PBF LTC3442EDE#TRPBF

Herstellerklassifikation

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

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