Analog Devices, Inc. 1.5A, 500kHz Step-Down Switching Regulators LT1375CS8#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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Product
Description
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Norwood, MA, USA
1.5A, 500kHz Step-Down Switching Regulators
LT1375CS8#PBF
1.5A, 500kHz Step-Down Switching Regulators LT1375CS8#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
 - 7799249P - RS Components, Ltd.
Corby, Northants, United Kingdom
A range of SEPIC DC-DC Converters from Linear Technology which can be used in applications where the output voltage may be either higher or lower than the input voltage. The SEPIC (Single-Ended Primary-Inductor Converter) topology also allows these converters to produce a negative output from a positive input voltage. Some of these switching regulators include features such as multiple outputs, programmable current limit, low battery detection and burst-mode operation. SEPIC (Single-Ended Primary-Inductor Converter) Maximum Output Current = 1.5A Maximum Output Voltage = 5 V Regulator Function = Buck Controller Minimum Input Voltage = 5 V Maximum Input Voltage = 25 V Mounting Type = Surface Mount Number of Outputs = 1 Pin Count = 8 Package Type = SOIC Switching Regulator = Yes Delivery on production packaging - Tube. This product is non-returnable.

A range of SEPIC DC-DC Converters from Linear Technology which can be used in applications where the output voltage may be either higher or lower than the input voltage. The SEPIC (Single-Ended Primary-Inductor Converter) topology also allows these converters to produce a negative output from a positive input voltage. Some of these switching regulators include features such as multiple outputs, programmable current limit, low battery detection and burst-mode operation.
SEPIC (Single-Ended Primary-Inductor Converter)
Maximum Output Current = 1.5A
Maximum Output Voltage = 5 V
Regulator Function = Buck Controller
Minimum Input Voltage = 5 V
Maximum Input Voltage = 25 V
Mounting Type = Surface Mount
Number of Outputs = 1
Pin Count = 8
Package Type = SOIC
Switching Regulator = Yes
Delivery on production packaging - Tube. This product is non-returnable.

Supplier's Site
 - 7799249 - RS Components, Ltd.
Corby, Northants, United Kingdom
A range of SEPIC DC-DC Converters from Linear Technology which can be used in applications where the output voltage may be either higher or lower than the input voltage. The SEPIC (Single-Ended Primary-Inductor Converter) topology also allows these converters to produce a negative output from a positive input voltage. Some of these switching regulators include features such as multiple outputs, programmable current limit, low battery detection and burst-mode operation. SEPIC (Single-Ended Primary-Inductor Converter) Maximum Output Current = 1.5A Maximum Output Voltage = 5 V Regulator Function = Buck Controller Minimum Input Voltage = 5 V Maximum Input Voltage = 25 V Mounting Type = Surface Mount Number of Outputs = 1 Pin Count = 8 Package Type = SOIC Switching Regulator = Yes

A range of SEPIC DC-DC Converters from Linear Technology which can be used in applications where the output voltage may be either higher or lower than the input voltage. The SEPIC (Single-Ended Primary-Inductor Converter) topology also allows these converters to produce a negative output from a positive input voltage. Some of these switching regulators include features such as multiple outputs, programmable current limit, low battery detection and burst-mode operation.
SEPIC (Single-Ended Primary-Inductor Converter)
Maximum Output Current = 1.5A
Maximum Output Voltage = 5 V
Regulator Function = Buck Controller
Minimum Input Voltage = 5 V
Maximum Input Voltage = 25 V
Mounting Type = Surface Mount
Number of Outputs = 1
Pin Count = 8
Package Type = SOIC
Switching Regulator = Yes

Supplier's Site
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - LT1375CS8#PBF - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
LT1375CS8#PBF
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators LT1375CS8#PBF
IC REG BUCK SEPIC ADJ 1.5A 8SO

IC REG BUCK SEPIC ADJ 1.5A 8SO

Supplier's Site
PMIC - Voltage Regulators - DC DC Switching Regulators - LT1375CS8#PBF - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
LT1375CS8#PBF
PMIC - Voltage Regulators - DC DC Switching Regulators LT1375CS8#PBF
IC REG BUCK SEPIC ADJ 1.5A 8SOIC

IC REG BUCK SEPIC ADJ 1.5A 8SOIC

Supplier's Site Datasheet
Integrated Circuits - LT1375CS8#PBF - LIXINC Electronics Co., Limited
Hong Kong, China
Integrated Circuits
LT1375CS8#PBF
Integrated Circuits LT1375CS8#PBF
IC REG BUCK SEPIC ADJ 1.5A 8SOIC

IC REG BUCK SEPIC ADJ 1.5A 8SOIC

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1375CS8#PBF - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
LT1375CS8#PBF
Voltage Regulators - DC DC Switching Regulators LT1375CS8#PBF
Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.90mm Width)

Buck, SEPIC Switching Regulator IC Positive Adjustable 2.42V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.90mm Width)

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1375CS8#PBF-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
LT1375CS8#PBF-ND
Voltage Regulators - DC DC Switching Regulators LT1375CS8#PBF-ND
IC REG BUCK SEPIC ADJ 1.5A 8SO

IC REG BUCK SEPIC ADJ 1.5A 8SO

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
LT1375CS8#PBF
Switching Voltage Regulators LT1375CS8#PBF
Switching Voltage Regulators 500kHz 1.5A S/D Sw Reg w/sync

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

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. RS Components, Ltd. Shenzhen Shengyu Electronics Technology Limited Lingto Electronic Limited LIXINC Electronics Co., Limited Quarktwin Technology Ltd. DigiKey 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 IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number LT1375CS8#PBF 7799249P LT1375CS8#PBF LT1375CS8#PBF LT1375CS8#PBF LT1375CS8#PBF LT1375CS8#PBF-ND LT1375CS8#PBF
Product Name 1.5A, 500kHz Step-Down Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators PMIC - Voltage Regulators - DC DC Switching Regulators Integrated Circuits Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Switching Voltage Regulators
Configuration / Function Buck Buck; Boost Buck; Buck, SEPIC Buck
Package Type SOIC SOIC; Other; SOIC SOIC SOIC; Other; Tube SOIC; Other; 8-SOIC (0.154\", 3.90mm Width) SOIC; Other; 8-SOIC (0.154", 3.90mm Width)
Life Cycle Stage Production Active Active Active
IOUT 1.2 amps 1.5 amps 1.5 amps 1.5 amps 1.5 amps 1.5 amps 1.5 amps
VIN 5 to 25 volts 5 to 25 volts 25 volts 5 to 25 volts 5 to 25 volts
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