Datasheet Linear Technology LTC3832-1ES8#PBF — Datenblatt

Hersteller	Linear Technology
Serie	LTC3832-1
Artikelnummer	LTC3832-1ES8#PBF

Hochleistungs-Step-Down-Synchron-DC / DC-Regler für den Niederspannungsbetrieb

Datenblätter

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PDF, 329 Kb, Sprache: en, Datei hochgeladen: Sep 23, 2017, Seiten: 24
High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

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Preise

Verpackung

Package	SO-8
Package Code	S8
Package Index	05-08-1610 (S8)

Parameter

Architecture	Constant Frequency Voltage Mode
Demo Boards	DC469B
Design Tools	LTspice File
Export Control	no
Features	No Rsense, Fixed Output
Frequency	500 kHz
Frequency Adjust Range	100kHz - 500kHz
Frequency Sync Range	100kHz - 500kHz
Integrated Inductor	no
Ishutdown	1 µA
Isupply	0.7 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	8 V
Vin Min	3 V
Vout Max	7.28 V
Vout Maximum	0.91VIN
Vout Min	0.6 V
Vref Accuracy Over Temp	0.83 %

Öko-Plan

RoHS

Compliant

Andere Optionen

LTC3832 LTC3832

Konstruktionshinweise

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High Current Step-Down Controller Regulates to 0.6V Output from 3V Input &mdash DN322
PDF, 83 Kb, Datei veröffentlicht: Oct 1, 2003
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advertisement High Current Step-Down Controller Regulates to 0.6V Output
from 3V Input вЂ“ Design Note 322
Charlie Zhao and Wei Chen The LTC3832 uses a synchronous switching architecture with external N-channel MOSFETs. An adjustable
current limit is provided by sensing the current through
the drain-source on-resistance of the top MOSFET,
eliminating the need for a current sense resistor. The
LTC3832 has a 300kHz free-running switching frequency
that can be programmed or synchronized externally
from 100kHz to 500kHz. All of these features promote
a DC/DC converter solution with high efп¬Ѓciency and
small size.
The LTC3832 also includes a thermal protection circuit which disables both gate drivers if the junction
temperature reaches 150В°C. The chip resumes normal
operation when the temperature drops below 125В°C.
Design Examples
Figure 1 shows the schematic diagram and photo of a
compact 1V/7A step-down DC/DC converter that accepts
2.2ОјF 10О© 0.01ОјF LTC3832-1
SS VCC/PVCC2
COMP G1 15k
GND MBR0520T1 VIN = 5V
VOUT = 1V 95
90 …

Artikel

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Versatile LTC3830 and LTC3832 Deliver High Efficiency for Step-Down, Step-Up and Inverting Power Conversions &mdash LT Journal
PDF, 62 Kb, Datei veröffentlicht: May 1, 2002
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DESIGN IDEAS Versatile LTC3830 and LTC3832 Deliver
High Efficiency for Step-Down, Step-Up
and Inverting Power Conversions
by Wei Chen and Charlie Zhao
Introduction
The LTC3830 and the LTC3832 are
pin-to-pin compatible upgrades to the
LTC1430вЂ”a popular IC for low voltage step-down applications due to its
simplicity and high efficiency. The
LTC3830 and the LTC3832 remove
the LTC1430вЂ™s frequency foldback at
startup, thus eliminating inrush current and resulting output overshoot.
Other improvements over the
LTC1430 include tighter gm distribu-+
D3
MBR0520LT1
DZ
MMSZ5242B
5V +
PVCC1 PVCC2 +
2.2ВµF SENSE +
SENSE вЂ“
NC Doug La Porte Tiny and Efficient Boost Converter …

Modellreihe

Serie: LTC3832-1 (2)

LTC3832-1ES8#PBF LTC3832-1ES8#TRPBF

Herstellerklassifikation

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

Andere Namen:

LTC3832-1ES8PBF, LTC3832-1ES8 PBF, LTC38321ES8#PBF, LTC3832 1ES8#PBF

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