Analog Devices, Inc. Step-Down Switching Regulator LT1076CR#PBF

Description
Product Details The LT1074 is a 5A (LT1076 is rated at 2A) monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, and all current limit components,are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1074 to drive a tapped-inductor in the buck mode with output currents up to 10A. The LT1074 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs. On-chip pulse by pulse current limiting makes the LT1074 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations. The LT1074 is available in lowcost TO-220 or DD packages with frequency pre-set at 100kHz and current limit at 6.5A (LT1076 =2.6A). A 7-pin TO-220 package is also available which allows current limit to be adjusted down to zero. In addition, full micropower shutdown can be programmed. See Application Note 44 for design details. A fixed 5V output, 2A version is also available. See LT1076-5. Applications Buck Converter with Output Voltage Range of 2.5V to 50V Tapped-Inductor Buck Converter with 10A Output at 5V Positive-to-Negative Converter Negative Boost Converter Multiple Output Buck Converter
Request a Quote Datasheet

Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
Step-Down Switching Regulator
LT1076CR#PBF
Step-Down Switching Regulator LT1076CR#PBF
Product Details The LT1074 is a 5A (LT1076 is rated at 2A) monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, and all current limit components,are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1074 to drive a tapped-inductor in the buck mode with output currents up to 10A. The LT1074 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs. On-chip pulse by pulse current limiting makes the LT1074 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations. The LT1074 is available in lowcost TO-220 or DD packages with frequency pre-set at 100kHz and current limit at 6.5A (LT1076 =2.6A). A 7-pin TO-220 package is also available which allows current limit to be adjusted down to zero. In addition, full micropower shutdown can be programmed. See Application Note 44 for design details. A fixed 5V output, 2A version is also available. See LT1076-5. Applications Buck Converter with Output Voltage Range of 2.5V to 50V Tapped-Inductor Buck Converter with 10A Output at 5V Positive-to-Negative Converter Negative Boost Converter Multiple Output Buck Converter

Product Details

The LT1074 is a 5A (LT1076 is rated at 2A) monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, and all current limit components,are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1074 to drive a tapped-inductor in the buck mode with output currents up to 10A.

The LT1074 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs.

On-chip pulse by pulse current limiting makes the LT1074 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations.

The LT1074 is available in lowcost TO-220 or DD packages with frequency pre-set at 100kHz and current limit at 6.5A (LT1076 =2.6A). A 7-pin TO-220 package is also available which allows current limit to be adjusted down to zero. In addition, full micropower shutdown can be programmed. See Application Note 44 for design details.

A fixed 5V output, 2A version is also available. See LT1076-5.

Applications

  • Buck Converter with Output Voltage Range of 2.5V to 50V
  • Tapped-Inductor Buck Converter with 10A Output at 5V
  • Positive-to-Negative Converter
  • Negative Boost Converter
  • Multiple Output Buck Converter
Supplier's Site Datasheet
Switching Regulator, Current-mode, 3.2A, 125kHz Switching Freq-Max, BIPolar, PSSO7

Switching Regulator, Current-mode, 3.2A, 125kHz Switching Freq-Max, BIPolar, PSSO7

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - LT1076CR#PBF - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
LT1076CR#PBF
PMIC - Voltage Regulators - DC DC Switching Regulators LT1076CR#PBF
IC REG MULT CONFG ADJ 2A D2PAK-7

IC REG MULT CONFG ADJ 2A D2PAK-7

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1076CR#PBF - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
LT1076CR#PBF
Voltage Regulators - DC DC Switching Regulators LT1076CR#PBF
Buck, Boost, Flyback Switching Regulator IC Positive or Negative Adjustable 2.5V 1 Output 2A (Switch) TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

Buck, Boost, Flyback Switching Regulator IC Positive or Negative Adjustable 2.5V 1 Output 2A (Switch) TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
LT1076CR#PBF
Switching Voltage Regulators LT1076CR#PBF
Switching Voltage Regulators 2A Step-Down Switching Reg

Switching Voltage Regulators 2A Step-Down Switching Reg

Supplier's Site Datasheet
 - 5455225P - RS Components, Ltd.
Corby, Northants, United Kingdom
Step down switch regulator,LT1076CR 35V - Power Management ICs - Buck Converters Delivery on production packaging - Tube. This product is non-returnable.

Step down switch regulator,LT1076CR 35V - Power Management ICs - Buck Converters
Delivery on production packaging - Tube. This product is non-returnable.

Supplier's Site
 - 5455225 - RS Components, Ltd.
Corby, Northants, United Kingdom
Step down switch regulator,LT1076CR 35V - Power Management ICs - Buck Converters

Step down switch regulator,LT1076CR 35V - Power Management ICs - Buck Converters

Supplier's Site
 - 1533408 - RS Components, Ltd.
Corby, Northants, United Kingdom
Step down switch regulator,LT1076CR 35V - Power Management ICs - Buck Converters

Step down switch regulator,LT1076CR 35V - Power Management ICs - Buck Converters

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - LT1076CR#PBF-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
LT1076CR#PBF-ND
Voltage Regulators - DC DC Switching Regulators LT1076CR#PBF-ND
IC REG MULT CONFIG ADJ 2A 7DDPAK

IC REG MULT CONFIG ADJ 2A 7DDPAK

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. Shenzhen Shengyu Electronics Technology Limited Lingto Electronic Limited Quarktwin Technology Ltd. VAST STOCK CO., LIMITED RS Components, Ltd. DigiKey
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 LT1076CR#PBF LT1076CR#PBF LT1076CR#PBF LT1076CR#PBF LT1076CR#PBF 5455225P LT1076CR#PBF-ND
Product Name Step-Down Switching Regulator Others PMIC - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Switching Voltage Regulators Voltage Regulators - DC DC Switching Regulators
Configuration / Function Buck Buck; Boost Buck; Boost
Package Type TO-220 Other; R TO-263; Other; TO-263-8, D²Pak (7 Leads + Tab), TO-263CA TO-263; Other; TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Life Cycle Stage Production Production Active
IOUT 1.6 amps 2 amps 2 amps 2 amps 10 amps 2 amps
VIN 7.3 to 45 volts 45 volts 8 to 45 volts 7.3 to 45 volts 8 to 45 volts
Unlock Full Specs
to access all available technical data

Similar Products

 - 78M05MFK - Rochester Electronics
Rochester Electronics
Specs
Package Type Other; CLCC20
View Details
Automotive Triple Output Regulator - A4405KLPTR-T - Allegro MicroSystems Inc.
Specs
Package Type Other; 20-Pin TSSOP
View Details
7 suppliers
 - 631648P - RS Components, Ltd.
RS Components, Ltd.
Specs
Configuration / Function Buck; Boost
Output Voltage Type Adjustable / Variable
Output Voltage 5.1 to 40 volts
View Details
LM2575-N SIMPLE SWITCHER 1A Step-Down Voltage Regulator - LM2575SX-ADJ - Texas Instruments
Specs
Configuration / Function Buck
Package Type Other; PDIP,DDPAK/TO-263,SOIC,TO-220
Output Voltage 3.3 to 37 volts
View Details
7 suppliers