Datasheet Linear Technology LT3437EDD#TRPBF — Datenblatt

Hersteller	Linear Technology
Serie	LT3437
Artikelnummer	LT3437EDD#TRPBF

Hochspannungs-Abwärtsregler mit 500 mA und 200 kHz und 100 µA Ruhestrom

Datenblätter

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PDF, 573 Kb, Sprache: en, Datei hochgeladen: Sep 18, 2017, Seiten: 28
High Voltage 500mA, 200kHz Step-Down Switching Regulator with 100µA Quiescent Current

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Verpackung

Package	3x3 DFN-10
Package Code	DD
Package Index	05-08-1699

Parameter

Architecture	Constant Frequency Current Mode
Demo Boards	DC1232A
Design Tools	LTspice File
Export Control	no
Features	External Synchronization, Burst Mode
Frequency	200 kHz
Frequency Sync Range	240kHz - 700kHz
Integrated Inductor	no
Ishutdown	0.1 µA
Isupply	0.075 mA
Max Phases	1
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Output Current	0.4 A
Over Voltage Protection	80 V
Polyphase	no
Switch Current	0.65 A
Synchronous	no
Topology	Buck
Vin Max	60 V
Vin Min	3.3 V
Vout Max	54 V
Vout Maximum	.90VIN
Vout Min	1.25 V
Vref Accuracy Over Temp	2 %

Öko-Plan

RoHS

Compliant

Konstruktionshinweise

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Monolithic Step-Down Regulator Withstands The Rigors of Automotive Environments and Consumes Only 100ВµA of Quiescent Current &mdash DN378
PDF, 129 Kb, Datei veröffentlicht: Oct 19, 2005
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advertisement Monolithic Step-Down Regulator Withstands The Rigors of
Automotive Environments and Consumes Only 100ВµA of
Quiescent Current вЂ“ Design Note 378
Rich Philpott
Introduction
Automobile electronic systems place high demands on
todayвЂ™s DC/DC converters. They must be able to precisely
regulate an output voltage in the face of wide temperature
and input voltage rangesвЂ”including load dump transients
in excess of 60V and cold crank voltage drops to 4V. The
converter must also be able to minimize battery drain in
always-on systems by maintaining high efп¬Ѓciency over a
broad load current range. Similar demands are made by
many 48V nonisolated telecom applications, 40V FireWire
peripherals and battery-powered applications with auto
plug adaptors. The LT3437вЂ™s best in class performance
meets all of these requirements in a small thermally
enhanced 3mm Г— 3mm DFN package.
Features of the LT3437
The LTВ® 3437 is a 200kHz п¬Ѓxed frequency, 500mA
monolithic buck switching regulator. Its 3.3V to 80V
input voltage range makes the LT3437 ideal for harsh
automotive environments. Micropower bias current and …

Modellreihe

Serie: LT3437 (10)

LT3437EDD#PBF LT3437EDD#TRPBF LT3437EFE#PBF LT3437EFE#TRPBF LT3437HFE#PBF LT3437HFE#TRPBF LT3437IDD#PBF LT3437IDD#TRPBF LT3437IFE#PBF LT3437IFE#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Andere Namen:

LT3437EDDTRPBF, LT3437EDD TRPBF