Analog Devices, Inc. 4.5A, 500kHz Step-Down Switching Regulator LT1374IR#PBF

Description
Product Details The LT1374 is a 500kHz monolithic buck mode switching regulator. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available. A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. The LT1374 is available in standard 7-pin DD, TO-220, fused lead SO-8 and 16-pin exposed pad TSSOP packages. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts may be used, including the inductor and capacitors. There is the optional function of shutdown or synchronization. A shutdown signal reduces supply current to 20µA. Synchronization allows an external logic level signal to increase the internal oscillator from 580kHz to 1MHz. Applications Portable Computers Battery-Powered Systems Battery Chargers Distributed Power
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Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
4.5A, 500kHz Step-Down Switching Regulator
LT1374IR#PBF
4.5A, 500kHz Step-Down Switching Regulator LT1374IR#PBF
Product Details The LT1374 is a 500kHz monolithic buck mode switching regulator. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available. A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. The LT1374 is available in standard 7-pin DD, TO-220, fused lead SO-8 and 16-pin exposed pad TSSOP packages. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts may be used, including the inductor and capacitors. There is the optional function of shutdown or synchronization. A shutdown signal reduces supply current to 20µA. Synchronization allows an external logic level signal to increase the internal oscillator from 580kHz to 1MHz. Applications Portable Computers Battery-Powered Systems Battery Chargers Distributed Power

Product Details

The LT1374 is a 500kHz monolithic buck mode switching regulator. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available.

A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch.

The LT1374 is available in standard 7-pin DD, TO-220, fused lead SO-8 and 16-pin exposed pad TSSOP packages. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts may be used, including the inductor and capacitors. There is the optional function of shutdown or synchronization. A shutdown signal reduces supply current to 20µA. Synchronization allows an external logic level signal to increase the internal oscillator from 580kHz to 1MHz.

Applications

  • Portable Computers
  • Battery-Powered Systems
  • Battery Chargers
  • Distributed Power
Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
LT1374IR#PBF
Switching Voltage Regulators LT1374IR#PBF
Switching Voltage Regulators 4.5A 500kHz Stepdown Sw Reg

Switching Voltage Regulators 4.5A 500kHz Stepdown Sw Reg

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - LT1374IR#PBF - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
LT1374IR#PBF
PMIC - Voltage Regulators - DC DC Switching Regulators LT1374IR#PBF
IC REG BUCK SEPIC ADJ 4.5A D2PAK

IC REG BUCK SEPIC ADJ 4.5A D2PAK

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1374IR#PBF-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
LT1374IR#PBF-ND
Voltage Regulators - DC DC Switching Regulators LT1374IR#PBF-ND
Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 4.5A (Switch) TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 4.5A (Switch) TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

Supplier's Site Datasheet
Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators - LT1374IR#PBF - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators
LT1374IR#PBF
Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators LT1374IR#PBF
IC REG BUCK SEPIC ADJ 4.5A D2PAK

IC REG BUCK SEPIC ADJ 4.5A D2PAK

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - LT1374IR#PBF - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
LT1374IR#PBF
Voltage Regulators - DC DC Switching Regulators LT1374IR#PBF
Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 4.5A (Switch) TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 4.5A (Switch) TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. VAST STOCK CO., LIMITED Lingto Electronic Limited DigiKey Shenzhen Shengyu Electronics Technology Limited Quarktwin Technology Ltd.
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number LT1374IR#PBF LT1374IR#PBF LT1374IR#PBF LT1374IR#PBF-ND LT1374IR#PBF LT1374IR#PBF
Product Name 4.5A, 500kHz Step-Down Switching Regulator Switching Voltage Regulators PMIC - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators
Configuration / Function Buck Buck
Package Type SOIC; Other; TSSOP TO-263; Other; TO-263-8, D2PAK (7 Leads + Tab), TO-263CA TO-263 TO-263; Other; TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Life Cycle Stage Production Active Active
IOUT 3.6 amps 4.5 amps 4.5 amps 4.5 amps 4.5 amps
VIN 5 to 25 volts 5 to 25 volts 5 to 25 volts
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