Datasheet Linear Technology LT1944-1EMS#PBF — Datenblatt

Hersteller	Linear Technology
Serie	LT1944-1
Artikelnummer	LT1944-1EMS#PBF

Dual Micropower Step-Up DC / DC-Wandler

Datenblätter

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PDF, 151 Kb, Sprache: en, Datei hochgeladen: Sep 3, 2017, Seiten: 8
Dual Micropower Step-Up DC/DC Converter

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Verpackung

Package	MS-10
Package Code	MS
Package Index	05-08-1661

Parameter

Architecture	Constant Off-Time Current Mode
Demo Boards	DC445A
Design Tools	LTspice Model
Export Control	no
Frequency Adjust Range	Constant Off Time
Integrated Inductor	no
Ishutdown	1 µA
Isupply	0.02 mA
Monolithic	yes
Number of Outputs	2
Operating Temperature Range	0 to 85 °C
Polyphase	no
Switch Current	0.175 A
Switch Current 2	0.1 A
Synchronous	no
Topology	Boost, Sepic, Flyback
Topology 1	Boost
Topology 2	Boost
Vin Max	15 V
Vin Min	1.2 V
Vin Min Startup	1.2 V
Vout Max	36 V
Vout Max 2	40 V
Vout Min	1.23 V
Vswitch Max	36 V

Öko-Plan

RoHS

Compliant

Artikel

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Simple and Efficient Way to Provide Three Supply Voltages for Small TFT LCDs &mdash LT Journal
PDF, 35 Kb, Datei veröffentlicht: Dec 1, 2001
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DESIGN IDEAS Simple and Efficient Way to Provide
Three Supply Voltages for
Small TFT LCDs
by Bryan Legates
TFT LCDs used in portable devices
today typically need three different
supply voltages: 5V, 15V, and вЂ“10V.
One way to generate these three voltages is to use a single DC/DC
converter and a large number of external components, but this results
in mediocre line and load regulation.
The LT1944-1 dual micropower DC/
DC converter simplifies LCD power
supply design by generating three
well-regulated output voltages using
a small number of external components. Both DC/DC converters in the
DESIGN IDEAS
Simple and Efficient Way to
Provide Three Supply Voltages for
Small TFT LCDs .27 LT1944-1 use a constant-off-time
Burst ModeВ® control scheme to ensure high efficiency at very light load
currents. The two converters are independently optimized for high and
low step-up ratios: the first converter
generates вЂ“10V and 15V using a …

Modellreihe

Serie: LT1944-1 (2)

LT1944-1EMS#PBF LT1944-1EMS#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > LCD/CCD/OLED Bias
Power Management > Switching Regulator > Step-Up (Boost) Regulators > Micropower Boost | Internal Power Switch Boost | Multiple Output Boost

Andere Namen:

LT1944-1EMSPBF, LT1944-1EMS PBF, LT19441EMS#PBF, LT1944 1EMS#PBF

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