Datasheet Linear Technology LTC3822EDD#PBF — Datenblatt

Hersteller	Linear Technology
Serie	LTC3822
Artikelnummer	LTC3822EDD#PBF

Kein RSENSE, niedrige Eingangsspannung, synchroner DC / DC-Abwärtsregler

Datenblätter

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PDF, 209 Kb, Sprache: en, Datei hochgeladen: Sep 23, 2017, Seiten: 20
No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller

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Preise

Verpackung

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

Parameter

Architecture	Constant Frequency Current Mode
Demo Boards	DC1014A,DC972A
Design Tools	LTspice Model
Export Control	no
Features	No Rsense, Selectable Switching Frequency
Frequency	750 kHz
Frequency Adjust Range	300kHz, 550kHz, 750kHz
Integrated Inductor	no
Ishutdown	7.5 µA
Isupply	0.34 mA
Max Phases	1
Monolithic	no
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Output Current	20 A
Polyphase	no
Sense Resistor	None
Switch Current	20 A
Synchronous	yes
Topology	Buck
Vin Max	4.5 V
Vin Min	2.75 V
Vout Max	4.455 V
Vout Maximum	.99Vin
Vout Min	0.6 V
Vref Accuracy Over Temp	1 %

Öko-Plan

RoHS

Compliant

Artikel

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High Efficiency, Low Input Voltage, Synchronous Buck Controller Drives up to 15A Load Current &mdash LT Journal
PDF, 406 Kb, Datei veröffentlicht: Nov 21, 2006
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DESIGN IDEAS L High Efп¬Ѓciency, Low Input Voltage,
Synchronous Buck Controller Drives
by Joseph Duncan
up to 15A Load Current
Introduction IPRG The LTC3822 is a synchronous stepdown DC/DC converter that drives
external N-channel power MOSFETs
to maximize average current drive for
the lowest cost. Its No RSENSE constant
frequency architecture minimizes the
number of external components, and
a programmable frequency of up to
750kHz allows the use of small surface-mount inductors and capacitors.
This DC/DC controller is optimized
for 3.3VIN and Lithium-Ion applications allowing VOUT as low as 0.6V
while maintaining 1% precision. The
all N-channel MOSFET drive simpliп¬Ѓes component selection as well as
drastically increasing the current
capabilities of a typical circuit. Even
with 3.3V gate drive, the LTC3822 is
capable of controlling more than 15A
load current while maintaining high
efп¬Ѓciency. RUN ITH LTC3822 SW GND 59k GND VOUT
1.8V …

Modellreihe

Serie: LTC3822 (4)

LTC3822EDD#PBF LTC3822EDD#TRPBF LTC3822EMSE#PBF LTC3822EMSE#TRPBF

Herstellerklassifikation

Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers

Andere Namen:

LTC3822EDDPBF, LTC3822EDD PBF

Verwandte Veröffentlichungen

Datenblätter Datasheet Analog Devices LTC3822

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