Analog Devices, Inc. 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators LT1172IN8#PBF

Description
Product Details The LT1170/LT1171/LT1172 are monolithic high power switching regulators. They can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk.” A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry. Integration of all functions allows the LT1170/LT1171/LT1172 to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin packages (LT1172). This makes them extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators. The LT1170/LT1171/LT1172 operate with supply voltages from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no external power devices. By utilizing current-mode switching techniques, they provide excellent AC and DC load and line regulation. The LT1170/LT1171/LT1172 have many unique features not found even on the vastly more difficult to use low power control chips presently available. They use adaptive antisat switch drive to allow very wide ranging load currents with no loss in efficiency. An externally activated shutdown mode reduces total supply current to 50μA typically for standby operation. Applications Logic Supply 5V at 10A 5V Logic to ±15V Op Amp Supply Battery Upconverter Power Inverter (+ to –) or (– to +) Fully Floating Multiple Outputs User Note This data sheet is only intended to provide specifications, graphs, and a general functional description of the LT1170/LT1171/LT1172 . Application circuits are included to show the capability of the LT1170/LT1171/LT1172 . A complete design manual (AN19) should be obtained to assist in developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in the higher frequency. A CAD design program called SwitcherCAD® is also available.
Request a Quote Datasheet

Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
LT1172IN8#PBF
100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators LT1172IN8#PBF
Product Details The LT1170/LT1171/LT1172 are monolithic high power switching regulators. They can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk.” A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry. Integration of all functions allows the LT1170/LT1171/LT1172 to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin packages (LT1172). This makes them extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators. The LT1170/LT1171/LT1172 operate with supply voltages from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no external power devices. By utilizing current-mode switching techniques, they provide excellent AC and DC load and line regulation. The LT1170/LT1171/LT1172 have many unique features not found even on the vastly more difficult to use low power control chips presently available. They use adaptive antisat switch drive to allow very wide ranging load currents with no loss in efficiency. An externally activated shutdown mode reduces total supply current to 50μA typically for standby operation. Applications Logic Supply 5V at 10A 5V Logic to ±15V Op Amp Supply Battery Upconverter Power Inverter (+ to –) or (– to +) Fully Floating Multiple Outputs User Note This data sheet is only intended to provide specifications, graphs, and a general functional description of the LT1170/LT1171/LT1172 . Application circuits are included to show the capability of the LT1170/LT1171/LT1172 . A complete design manual (AN19) should be obtained to assist in developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in the higher frequency. A CAD design program called SwitcherCAD® is also available.

Product Details

The LT1170/LT1171/LT1172 are monolithic high power switching regulators. They can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk.” A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry. Integration of all functions allows the LT1170/LT1171/LT1172 to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin packages (LT1172). This makes them extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators.

The LT1170/LT1171/LT1172 operate with supply voltages from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no external power devices. By utilizing current-mode switching techniques, they provide excellent AC and DC load and line regulation.

The LT1170/LT1171/LT1172 have many unique features not found even on the vastly more difficult to use low power control chips presently available. They use adaptive antisat switch drive to allow very wide ranging load currents with no loss in efficiency. An externally activated shutdown mode reduces total supply current to 50μA typically for standby operation.

Applications

  • Logic Supply 5V at 10A
  • 5V Logic to ±15V Op Amp Supply
  • Battery Upconverter
  • Power Inverter (+ to –) or (– to +)
  • Fully Floating Multiple Outputs

User Note

This data sheet is only intended to provide specifications, graphs, and a general functional description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in the higher frequency. A CAD design program called SwitcherCAD® is also available.

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1172IN8#PBF - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
LT1172IN8#PBF
Voltage Regulators - DC DC Switching Regulators LT1172IN8#PBF
Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative Adjustable 1.244V 1 Output 1.25A (Switch) 8-DIP (0.300", 7.62mm)

Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative Adjustable 1.244V 1 Output 1.25A (Switch) 8-DIP (0.300", 7.62mm)

Supplier's Site Datasheet
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - LT1172IN8#PBF - 878358-LT1172IN8#PBF - Win Source Electronics
Yishun, Singapore
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - LT1172IN8#PBF
878358-LT1172IN8#PBF
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - LT1172IN8#PBF 878358-LT1172IN8#PBF
Manufacturer: Analog Devices Inc. Win Source Part Number: 878358-LT1172IN8#PBF Operating Temperature Range: -40°C ~ 100°C (TJ) Features: Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative Adjustable 1.244V 1 Output 1.25A (Switch) 8-DIP (0.300", 7.62mm) Package: 8-DIP (0.300", 7.62mm) Package: Tube Mounting: Through Hole Family Name: LT1172 Categories: Integrated Circuits (ICs) Case / Package: 8-PDIP ECCN: EAR99 Popularity: Medium Fake Threat In the Open Market: 48 pct. Supply and Demand Status: Limited Quantity per package: 50 MSL Level: 1 (Unlimited) Estimated Pruduction Lead Time: 7 Weeks REACH Status: REACH Unaffected HTSUS: 8542.39.0001

Manufacturer: Analog Devices Inc.
Win Source Part Number: 878358-LT1172IN8#PBF
Operating Temperature Range: -40°C ~ 100°C (TJ)
Features: Buck, Boost, Cuk, Flyback, Forward Converter Switching Regulator IC Positive or Negative Adjustable 1.244V 1 Output 1.25A (Switch) 8-DIP (0.300", 7.62mm)
Package: 8-DIP (0.300", 7.62mm)
Package: Tube
Mounting: Through Hole
Family Name: LT1172
Categories: Integrated Circuits (ICs)
Case / Package: 8-PDIP
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 48 pct.
Supply and Demand Status: Limited
Quantity per package: 50
MSL Level: 1 (Unlimited)
Estimated Pruduction Lead Time: 7 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001

Supplier's Site Datasheet
Integrated Circuits - LT1172IN8#PBF - LIXINC Electronics Co., Limited
Hong Kong, China
Integrated Circuits
LT1172IN8#PBF
Integrated Circuits LT1172IN8#PBF
IC REG MULT CONFG ADJ 1.25A 8DIP

IC REG MULT CONFG ADJ 1.25A 8DIP

Supplier's Site Datasheet
 - LT1172IN8#PBF - Rochester Electronics
Newburyport, MA, United States
LT1172 - 100KHZ 1.25A High Efficiency Switching Regulator

LT1172 - 100KHZ 1.25A High Efficiency Switching Regulator

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - LT1172IN8#PBF-ND - DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
LT1172IN8#PBF-ND
Voltage Regulators - DC DC Switching Regulators LT1172IN8#PBF-ND
IC REG MULT CONFG ADJ 1.25A 8DIP

IC REG MULT CONFG ADJ 1.25A 8DIP

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - LT1172IN8#PBF - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
LT1172IN8#PBF
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators LT1172IN8#PBF
IC REG MULT CONFG ADJ 1.25A 8DIP

IC REG MULT CONFG ADJ 1.25A 8DIP

Supplier's Site
PMIC - Voltage Regulators - DC DC Switching Regulators - LT1172IN8#PBF - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
LT1172IN8#PBF
PMIC - Voltage Regulators - DC DC Switching Regulators LT1172IN8#PBF
IC REG MULT CONFG ADJ 1.25A 8DIP

IC REG MULT CONFG ADJ 1.25A 8DIP

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
LT1172IN8#PBF
Switching Voltage Regulators LT1172IN8#PBF
Switching Voltage Regulators 1.25A Pwr Sw Reg 100kHz

Switching Voltage Regulators 1.25A Pwr Sw Reg 100kHz

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. Quarktwin Technology Ltd. Win Source Electronics LIXINC Electronics Co., Limited Rochester Electronics DigiKey Shenzhen Shengyu Electronics Technology Limited Lingto Electronic 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 IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number LT1172IN8#PBF LT1172IN8#PBF 878358-LT1172IN8#PBF LT1172IN8#PBF LT1172IN8#PBF LT1172IN8#PBF-ND LT1172IN8#PBF LT1172IN8#PBF LT1172IN8#PBF
Product Name 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Voltage Regulators - DC DC Switching Regulators PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - LT1172IN8#PBF Integrated Circuits Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators PMIC - Voltage Regulators - DC DC Switching Regulators Switching Voltage Regulators
Package Type SOIC; TO-220 DIP; Other; 8-DIP (0.300\", 7.62mm) DIP; Other; 8-PDIP DIP; Other; Tube DIP; Other; PDIP8 DIP; Other; 8-DIP (0.300", 7.62mm)
Life Cycle Stage Production Active Active Active Active
VIN 3 to 40 volts 3 to 40 volts 40 volts 3 to 40 volts
Operating Temperature -40 to 125 C (-40 to 257 F) -40 to 100 C (-40 to 212 F) -40 to 100 C (-40 to 212 F) -40 to 100 C (-40 to 212 F) -40 to 100 C (-40 to 212 F) -40 to 100 C (-40 to 212 F)
Output Voltage Type Adjustable / Variable; Adjustable Adjustable / Variable; Adjustable Adjustable / Variable
Unlock Full Specs
to access all available technical data

Similar Products

LM140K - LM140K-15 - Texas Instruments
Texas Instruments
View Details
8 suppliers
40V Input, 2.6A/2Mhz Sr Buck W/Cable Drop Comp - A8653KLPTR-T - Allegro MicroSystems Inc.
Specs
Configuration / Function Buck
Package Type Other; 16-Pin TSSOP
View Details
6 suppliers
Power - Linear Voltage Regulator (LDO) - Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear - TLS202A1MBV - TLS202A1MBV - Infineon Technologies AG
Specs
Regulator Type Low Dropout
Output Voltage Type Adjustable / Variable
Package Type Other; PG-SCT595-5
View Details
 - ICL7660SMTV - Rochester Electronics
Rochester Electronics
Specs
Package Type Other; CAN8 TO5
Life Cycle Stage Rochester-Active
View Details