Datasheet Linear Technology LTC3622IDE#TRPBF — Datenblatt

Hersteller	Linear Technology
Serie	LTC3622
Artikelnummer	LTC3622IDE#TRPBF

17 V, doppelter synchroner 1A-Abwärtsregler mit ultraniedrigem Ruhestrom

Datenblätter

PDF, 1.3 Mb, Datei hochgeladen: Sep 22, 2017

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Verpackung

Package	4x3 DFN-14
Package Code	DE
Package Index	05-08-1708

Parameter

Architecture	Constant Frequency Current Mode
Demo Boards	DC2003A,DC2004A
Design Tools	LTspice File,LTpowerCAD File
Export Control	no
Features	Burst Mode, 100% Duty Cycle, External Synchronization,
Frequency	2200 kHz
Frequency Adjust Range	1MHz (LTC3622) or 2.25MHz (LTC3622-2) Fixed
Frequency Sync Range	500kHz - 3.3MHz
Integrated Inductor	no
Ishutdown	0.1 µA
Isupply	0.005 mA
Max Phases	1
Monolithic	yes
Number of Outputs	2
Operating Temperature Range	-40 to 85 °C
Output Current	1 A
Output Current 2	1 A
Polyphase	no
Switch Current	1.8 A
Switch Current 2	1.8 A
Synchronous	yes
Topology	Buck
Topology 1	Buck
Topology 2	Buck
Vin Max	17 V
Vin Min	2.7 V
Vout Max	17 V
Vout Max 2	17 V
Vout Maximum	Vin
Vout Min	0.6 V
Vout Min 2	0.6 V
Vref Accuracy Over Temp	1.5 %

Öko-Plan

RoHS

Compliant

Konstruktionshinweise

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17V Input, Dual 1A Output Synchronous Step-Down Regulator with Ultralow Quiescent Current &mdash DN537
PDF, 164 Kb, Datei veröffentlicht: Feb 12, 2015
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17V Input, Dual 1A Output Synchronous Step-Down
Regulator with Ultralow Quiescent Current
Design Note 537
Haoran Wu
Introduction
The LTC В®3622 dual 1A synchronous monolithic stepdown regulator enables compact, high efficiency supplies for battery powered systems and portable devices
as well as general purpose point-of-load regulation.
The tiny 14-pin, 3mm Г— 4mm DFN package takes input
voltages from 2.7V to 17V, producing two adjustable
В±1% accurate outputs from 0.6V to VIN while delivering
up to 1A output current on both channels. The two channels can operate in phase or with 180В°
phase shift, selected by tying the PHASE pin to GND
or INTVCC. This provides users the flexibility to
separate the channelsвЂ™ switching edges to minimize
any noise coupling. There are two peak current limit
levels for the LTC3622 вЂ“ 1.8A or 1A, selected via the
ILIM pin. This selectable current limit allows smaller
size inductors in lower current designs to minimize
solution size and cost. The LTC3622вЂ™s quiescent current with both channels
enabled is as low as 5ВµA in Burst Mode В® operation
and less than 0.1ВµA in shutdown. The switching
frequency is fixed at 1MHz or 2.25MHz with a В±50%
synchronization range to an external clock. Selectable …

Modellreihe

Serie: LTC3622 (30)

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Herstellerklassifikation

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | Internal Power Switch Buck

Andere Namen:

LTC3622IDETRPBF, LTC3622IDE TRPBF

Verwandte Veröffentlichungen

Datenblätter Datasheet Analog Devices LTC3622

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