Analog Devices, Inc. 1.5A, 500kHz Step-Down Switching Regulators LT1376IS#PBF

Description
Product Details The LT1375/LT1376 are 500kHz monolithic buck mode switching regulators. A 1.5A 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. A shutdown signal will reduce supply current to 20μA on both parts. The LT1375 can be externally synchronized from 580kHz to 900kHz with logic level inputs. The LT1375/LT1376 fit into standard 8-pin PDIP and SO packages, as well as a fused lead 16-pin SO with much lower thermal resistance. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors. For low input voltage applications with 3.3V output, see LT1507. This is a functionally identical part that can operate with input voltages between 4.5V and 12V. Applications Portable Computers Battery-Powered Systems Battery Charger Distributed Power
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Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
1.5A, 500kHz Step-Down Switching Regulators
LT1376IS#PBF
1.5A, 500kHz Step-Down Switching Regulators LT1376IS#PBF
Product Details The LT1375/LT1376 are 500kHz monolithic buck mode switching regulators. A 1.5A 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. A shutdown signal will reduce supply current to 20μA on both parts. The LT1375 can be externally synchronized from 580kHz to 900kHz with logic level inputs. The LT1375/LT1376 fit into standard 8-pin PDIP and SO packages, as well as a fused lead 16-pin SO with much lower thermal resistance. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors. For low input voltage applications with 3.3V output, see LT1507. This is a functionally identical part that can operate with input voltages between 4.5V and 12V. Applications Portable Computers Battery-Powered Systems Battery Charger Distributed Power

Product Details

The LT1375/LT1376 are 500kHz monolithic buck mode switching regulators. A 1.5A 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. A shutdown signal will reduce supply current to 20μA on both parts. The LT1375 can be externally synchronized from 580kHz to 900kHz with logic level inputs.

The LT1375/LT1376 fit into standard 8-pin PDIP and SO packages, as well as a fused lead 16-pin SO with much lower thermal resistance. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors.

For low input voltage applications with 3.3V output, see LT1507. This is a functionally identical part that can operate with input voltages between 4.5V and 12V.

Applications

  • Portable Computers
  • Battery-Powered Systems
  • Battery Charger
  • Distributed Power
Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1376IS#PBF-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
LT1376IS#PBF-ND
Voltage Regulators - DC DC Switching Regulators LT1376IS#PBF-ND
Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 1.5A (Switch) 16-SOIC (0.154", 3.90mm Width)

Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 1.5A (Switch) 16-SOIC (0.154", 3.90mm Width)

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - LT1376IS#PBF - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
LT1376IS#PBF
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators LT1376IS#PBF
IC REG BUCK SEPIC ADJ 1.5A 16SO

IC REG BUCK SEPIC ADJ 1.5A 16SO

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - LT1376IS#PBF - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
LT1376IS#PBF
Voltage Regulators - DC DC Switching Regulators LT1376IS#PBF
Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 1.5A (Switch) 16-SOIC (0.154", 3.90mm Width)

Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 1.5A (Switch) 16-SOIC (0.154", 3.90mm Width)

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
LT1376IS#PBF
Switching Voltage Regulators LT1376IS#PBF
Switching Voltage Regulators 500kHz 1.5A S/D Sw Reg.

Switching Voltage Regulators 500kHz 1.5A S/D Sw Reg.

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. DigiKey Shenzhen Shengyu Electronics Technology Limited Quarktwin Technology Ltd. VAST STOCK CO., LIMITED
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number LT1376IS#PBF LT1376IS#PBF-ND LT1376IS#PBF LT1376IS#PBF LT1376IS#PBF
Product Name 1.5A, 500kHz Step-Down Switching Regulators Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Switching Voltage Regulators
Configuration / Function Buck Buck
Package Type SOIC SOIC; Other; 16-SOIC (0.154", 3.90mm Width) SOIC SOIC; Other; 16-SOIC (0.154\", 3.90mm Width)
Life Cycle Stage Production Active Active
IOUT 1.5 amps 1.5 amps 1.5 amps 1.5 amps
VIN 5 to 25 volts 5 to 25 volts 5 to 25 volts
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