Analog Devices, Inc. 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator LT1373CN8#PBF

Description
Product Details The LT1373 is a low supply current high frequency current mode switching regulator. It can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and “Cuk.” A 1.5A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry. All functions of the LT1373 are integrated into 8-pin SO/PDIP packages. Compared to the 500kHz LT1372, which draws 4mA of quiescent current, the LT1373 switches at 250kHz, typically consumes only 1mA and has higher efficiency. High frequency switching allows for small inductors to be used. All surface mount components consume less than 0.6 square inch of board space. New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an external logic level source. A logic low on the shutdown pin reduces supply current to 12µA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation techniques. Nonlinear error amplifier transconductance reduces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external components during overload conditions. Applications Boost Regulators CCFL Backlight Driver Laptop Computer Supplies Multiple Output Flyback Supplies Inverting Supplies
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Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
250kHz Low Supply Current High Efficiency 1.5A Switching Regulator
LT1373CN8#PBF
250kHz Low Supply Current High Efficiency 1.5A Switching Regulator LT1373CN8#PBF
Product Details The LT1373 is a low supply current high frequency current mode switching regulator. It can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and “Cuk.” A 1.5A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry. All functions of the LT1373 are integrated into 8-pin SO/PDIP packages. Compared to the 500kHz LT1372, which draws 4mA of quiescent current, the LT1373 switches at 250kHz, typically consumes only 1mA and has higher efficiency. High frequency switching allows for small inductors to be used. All surface mount components consume less than 0.6 square inch of board space. New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an external logic level source. A logic low on the shutdown pin reduces supply current to 12µA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation techniques. Nonlinear error amplifier transconductance reduces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external components during overload conditions. Applications Boost Regulators CCFL Backlight Driver Laptop Computer Supplies Multiple Output Flyback Supplies Inverting Supplies

Product Details

The LT1373 is a low supply current high frequency current mode switching regulator. It can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and “Cuk.” A 1.5A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry. All functions of the LT1373 are integrated into 8-pin SO/PDIP packages.

Compared to the 500kHz LT1372, which draws 4mA of quiescent current, the LT1373 switches at 250kHz, typically consumes only 1mA and has higher efficiency. High frequency switching allows for small inductors to be used. All surface mount components consume less than 0.6 square inch of board space.

New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an external logic level source. A logic low on the shutdown pin reduces supply current to 12µA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation techniques. Nonlinear error amplifier transconductance reduces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external components during overload conditions.

Applications

  • Boost Regulators
  • CCFL Backlight Driver
  • Laptop Computer Supplies
  • Multiple Output Flyback Supplies
  • Inverting Supplies
Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1373CN8#PBF - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
LT1373CN8#PBF
Voltage Regulators - DC DC Switching Regulators LT1373CN8#PBF
Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC Switching Regulator IC Positive or Negative Adjustable 1.245V 1 Output 1.5A (Switch) 8-DIP (0.300", 7.62mm)

Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC Switching Regulator IC Positive or Negative Adjustable 1.245V 1 Output 1.5A (Switch) 8-DIP (0.300", 7.62mm)

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1373CN8#PBF-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
LT1373CN8#PBF-ND
Voltage Regulators - DC DC Switching Regulators LT1373CN8#PBF-ND
IC REG MULT CONFIG ADJ 1.5A 8DIP

IC REG MULT CONFIG ADJ 1.5A 8DIP

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - LT1373CN8#PBF - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
LT1373CN8#PBF
PMIC - Voltage Regulators - DC DC Switching Regulators LT1373CN8#PBF
IC REG MULTI CONFG ADJ 1.5A 8DIP

IC REG MULTI CONFG ADJ 1.5A 8DIP

Supplier's Site Datasheet
 - 1533507 - RS Components, Ltd.
Corby, Northants, United Kingdom
LT1373CN8PBF - Power Management ICs - Buck Boost Switching Regulators

LT1373CN8PBF - Power Management ICs - Buck Boost Switching Regulators

Supplier's Site
Switching Regulator, Current-mode, 1.5A, 275kHz Switching Freq-Max, BIPolar, PDIP8

Switching Regulator, Current-mode, 1.5A, 275kHz Switching Freq-Max, BIPolar, PDIP8

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
LT1373CN8#PBF
Switching Voltage Regulators LT1373CN8#PBF
Switching Voltage Regulators 250kHz L S C Hi Eff 1.5A Sw Reg

Switching Voltage Regulators 250kHz L S C Hi Eff 1.5A Sw Reg

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. Quarktwin Technology Ltd. DigiKey Lingto Electronic Limited RS Components, Ltd. Shenzhen Shengyu Electronics Technology Limited 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
Product Number LT1373CN8#PBF LT1373CN8#PBF LT1373CN8#PBF-ND LT1373CN8#PBF 1533507 LT1373CN8#PBF LT1373CN8#PBF
Product Name 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators PMIC - Voltage Regulators - DC DC Switching Regulators Others Switching Voltage Regulators
Package Type SOIC DIP; Other; 8-DIP (0.300\", 7.62mm) DIP; Other; 8-DIP (0.300", 7.62mm) Other; PDIP DIP; Other; DIP
Life Cycle Stage Production Active Production
VIN 2.7 to 30 volts 2.7 to 30 volts 2.7 to 30 volts 30 volts
Operating Temperature 0 to 70 C (32 to 158 F) 0 to 125 C (32 to 257 F) 0 to 125 C (32 to 257 F) 0 to 125 C (32 to 257 F)
Output Voltage Type Adjustable / Variable; Adjustable Adjustable / Variable Adjustable / Variable Adjustable / Variable; Adjustable
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