Step-Down (Buck) Regulators
Analog Devices manufactures a broad line of high performance, step-down buck switching regulator ICs and buck switching controller ICs with both synchronous and nonsynchronous switches. These switching voltage regulators offer typical input voltage capability from less than 2 V up to 100 V+, switching frequencies up to 4 MHz, and high efficiency operation up to 96%. With burst mode operation, quiescent currents in the tens of micro-amps level can be attained. This combination of features allows for very small, low profile buck switching regulator circuit implementations with minimum external components.
Группы продукции
Таблица выбора продукта
- Buck Regulator Plus LDO
- Понижающие стабилизаторы с цифровым управлением системой питания
- Digitally Programmable Regulators
- Контроллеры понижающих импульсных преобразователей с внешними силовыми ключами
- High Input Voltage Buck Regulators
- Internal Power Switch Buck Regulators
- Micropower Buck Regulators
- Multiple Output Buck Regulators
- Понижающие стабилизаторы µModule
11491
ru
Quick Power Search
Актуальные ресурсы по теме
Заметки разработчика
- LTC7803 or Easy Design Path to Advanced Power Supply
- Dual-Channel, 8.5 A, 18 V, Synchronous Step-Down Silent Switcher Device with 16 µA Quiescent Current
- Dual-Channel, 42 V, 2 A, Monolithic, Synchronous, Step-Down Silent Switcher 2 Device with 6.2 µA Quiescent Current
- 60 V Input Monolithic Converter Powers Critical Circuits Without Supercaps or Other Additional Components
- Triple Bucks Plus a Boost Controller to Meet Tough Requirements of Wide Range VIN Automotive Applications
- 42 V, 2 A/3 A Peak Synchronous Step-Down Regulators with 2.5 µA Quiescent Current and Ultralow EMI Emission
- High Voltage LTC3892 Family of Controllers Reduces DC-to-DC Converter Cost and Size
- 42V Monolithic Synchronous Step-Down Regulators with 2.5µA Quiescent Current and Ultralow EMI
- Monolithic 65V , 8A Step-Down Regulators with Fast Transient Response and Ultralow EMI Emissions
- DN573: 42V, 2A/3A Peak Synchronous Step-Down Regulators with 2.5µA Quiescent Current and Ultralow EMI Emission
- DN1049: 42V, 6A (7A Peak) High Efficient Step-Down Regulators with Ultralow EMI Emissions
- DN1044 - Dual Channel 42V, 4A Monolithic Synchronous Step-Down Silent Switcher 2 with 6.2μA Quiescent Current
- DN569 - Cool Running, 144W, 4 × 40A μModule POL Regulator
- DN562 - 60V Low IQ, Dual Output Synchronous Step-Down Controller with Adjustable Gate Drive
- DN560 - High Efficiency, 15V Rail-to-Rail Output Synchronous Step-Down Regulator Can Source or Sink 5A
- DN558 - Bidirectional DC/DC Regulator and Supercapacitor Charger
- DN554 - 6A Monolithic Synchronous DC/DC Step-Down Converter with Digital Power System Management
- DN551 - Ultrathin Triple Output μModule Regulator for DDR, QDR and QDR-IV SRAM Fits 0.5cm2 Area and Backside of PCB
- DN550 - 60V, 4A Synchronous Monolithic Step-Down Regulator Has Rail-to Rail Operation
- DN547 - VID Controller with Phase Extender Provides 120A Power Supply for Latest Generation of FPGAs, ASICs and Processors
- DN1038 - 42V High Power Density Buck Regulators in a Tiny QFN Package
- DN546 - Ultrathin Dual 2.5A or Single 5A μModule Regulator Fits on the Backside of PCBs, Allowing Space on the Topside for Digital ICs
- DN544 - 42V Quad Monolithic Synchronous Step-Down Regulator with 30μA Quiescent Current
- DN543 - Robust 140V VIN, 400mA Step-Down Regulator for Industrial, Telecom and Automotive Environments
- DN542 - Dual 9A, Step-Down μModule Regulator with Digital Power System Management
- DN524 - Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
- DN537 - 17V Input, Dual 1A Output Synchronous Step-Down Regulator with Ultralow Quiescent Current
- DN532 - High Efficiency 100mA Synchronous Buck Converter with Wide Input Range from 4V to 150V
- DN527 - 10A μModule Step-Down Regulator with Advanced Input and Load Protection
- DN434 - Multiphase DC/DC Controller Pushes Accuracy and Bandwidth Limits
- DN304 - 4MHz Monolithic Synchronous Step-Down Regulators Bring High Efficiency to Space-Sensitive Applications
- DN387 - Cascadable 7A Point-of-Load Monolithic Buck Converter
Технические статьи
- What to Consider in Regard to Switching Frequency
- What Actually Is a Hot Loop?
- Tiny, High Efficiency Monolithic Regulators Power Advanced SoCs and Microprocessors Feature Silent Switcher 2 Technology for Low EMI
- Self-Driving Cars—Are Power Systems up to the Task?
- Synchronous, Low EMI LED Driver Features Integrated Switches and Internal PWM Dimming
- 40V Input, 3.5A Silent Switcher µModule Regulator for Automotive and Industrial Applications
- LTC7800EUDC Demo Board With GaNFETS/500kHz | 30V ≤ VIN ≤ 55V; VOUT = 12V @ 20A
- AN170 - Honing the Adjustable Compensation Feature of Power System Management Controllers
- AN168 - Implementing Fast Telemetry with Power System Management Controllers
- LT8650S Demo Board | Dual Channel 42V, 4A Synchronous Step-Down Silent Switcher 2
- 60V Input Monolithic Converter Powers Critical Circuits without Supercaps or Other Additional Components
- Ultrathin Triple Output µModule Regulator for DDR, QDR and QDR-IV SRAM Fits 0.5cm2 Area and Backside of PCB
- 42V High Power Density Buck Regulators in a Tiny QFN Package
- 4-Phase Power Supply Delivers 120A in Tiny Footprint, Features Ultralow DCR Sensing for High Efficiency
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- High Efficiency PolyPhase Power Supply Delivers 30A per Phase with Ultralow Inductor DCR Sensing and Fast Transient Response
- Complete 20V, 20A High Performance µModule DC/DC Regulator in 15mm × 15mm × 4.32mm Package
- µModule Regulator Combines a Switcher with Five 1.1A LDOs: Use Them for Multiple Low Noise Rails, or Parallel Them to Spread Heat and Share Current to 5A
- Silent Switcher Meets CISPR Class 5 Radiated Emissions While Maintaining High Conversion Efficiency
- μModule Regulator Powers and Protects Low Voltage μProcessors, ASICs and FPGAs from Intermediate Bus Voltage Surges
- Compact Quad Step-Down Regulator with 100% Duty Cycle Operation Withstands 180V Surges
- µModule Regulator Charges Supercapacitor Backup Supply, Supporting LDO Outputs When the Input Supply Fails
Analog Dialogue
- DC-to-DC Conversion Directly from Automotive Battery Input: 5 A, 3.3 V, and 5 V Supplies Meet Stringent EMI Emission Standards
- Speed Up the Design of EMI Filters for Switch-Mode Power Supplies
- Reduce Power Supply Requirements for Ceramic Capacitors with a High Efficiency, High Frequency, Low EMI DC-to-DC Converter
- Bipolar, Single Output, and Adjustable Power Supplies Based on the Common Buck Converter
- Finally, A 12 V to 12 V Dual Battery Automotive Bidirectional DC-to-DC Controller for Redundancy
- How to Choose Cool Running, High Power, Scalable POL Regulators and Save Board Space
Статьи по применению
- AN170 - Honing the Adjustable Compensation Feature of Power System Management Controllers PDF
- AN168 - Implementing Fast Telemetry with Power System Management Controllers PDF
- AN166 - In Flight Update with Linduino PDF
- AN155 - Fault Log Decoding with Linduino PSM PDF
- AN153 - Linduino for Power System Management PDF
- AN152 - Power System Management Addressing (Rev. A) PDF
- AN149 - Modeling and Loop Compensation Design of Switching Mode Power Supplies PDF
- AN145 - Overview of the EEPROM in LTC PSM Devices PDF
- AN119A - Powering Complex FPGA-Based Systems Using Highly Integrated DC/DC uModule Regulator Systems PDF
- AN144 - Reduce EMI and Improve Efficiency with Silent Switcher Designs PDF
- AN126 - 2-Wire Virtual Remote Sensing for Voltage Regulators - Clairvoyance Marries Remote Sensing PDF
- AN137 - Accurate Temperature Sensing with an External P-N Junction PDF
- AN136 - PCB Layout Considerations for Non-Isolated Switching Power Supplies PDF
- AN135 - Implementing Robust PMBus System Software for the LTC3880 PDF
- AN133 - A Closed-Loop, Wideband, 100A Active Load PDF
- AN110 - LTM4601 DC/DC uModule Thermal Performance PDF
- AN103 - LTM4600 DC/DC uModule Thermal Performance PDF
- AN119B - Powering Complex FPGA-Based Systems Using Highly Integrated DC/DC uModule Regulator Systems PDF
- AN117 - DC/DC uModule Regulator Printed Circuit Board Design Guidelines PDF
- AN98 - Signal Sources, Conditioners and Power Circuitry Circuits of the Fall, 2004 PDF
- AN90 - Current Sources for Fiber Optic Lasers: A Compendium of Pleasant Current Events PDF
- AN84 - Linear Technology Magazine Circuit Collection, Volume IV PDF
- AN77 - High Efficiency, High Density, PolyPhase Converters for High Current Applications PDF
Step-Down (Buck) Regulators
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Output Current (typ) (A) | Output Current 2 (typ) (A) | Monolithic | Vout Min (typ) (V) | Synchronous | Isupply (typ) (A) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LTM8051 | 4 | 3 | 40 | 1.2 | 1.2 | Yes | 800m | Yes | 60µ | $9.03 (LTM8051EY#PBF) |
| 2 | LTC7802-3.3 | 2 | 4.5 | 20 | 20 | 12 | Yes | 3.3 | Yes | 12µ | $2.14 (LTC7802EUFDM-3.3#PBF) |
| 3 | LTC7132 | 2 | 4.5 | 20 | 20 | 20 | Yes | 500m | Yes | 25m | $6.75 (LTC7132EY#PBF) |
| 4 | LTC7871 | 1 | 1.2 | 100 | 180 | - | No | 1.2 | Yes | 10m | $3.60 (LTC7871ELWE#PBF) |
| 5 | LTC7803 | 1 | 4.5 | 40 | 20 | - | No | 800m | Yes | 12µ | $1.85 (LTC7803EMSE#PBF) |
| 6 | LT8648S | 1 | 2.45 | 42 | 15 | - | Yes | 600m | Yes | 140µ | $5.50 (LT8648SEV#PBF) |
| 7 | LTM4657 | 1 | 3.1 | 20 | 8 | - | Yes | 500m | Yes | 18m | $6.48 (LTM4657EY#PBF) |
| 8 | LT8618-3.3 | 1 | 3.6 | 60 | 100m | - | Yes | 3.3 | Yes | 2.5µ | $1.65 (LT8618EDDB-3.3#TRMPBF) |
| 9 | LT8618 | 1 | 3.6 | 60 | 100m | - | Yes | 800m | Yes | 2.5µ | $1.65 (LT8618EDDB#TRMPBF) |
| 10 | LT3383 | 7 | 2.7 | 5.5 | 2.5 | 2.5 | Yes | 850m | Yes | 248µ | $4.30 (LT3383EUJM#PBF) |
| 11 | LT3380 | 7 | 2.7 | 5.5 | 2.5 | 2.5 | Yes | 850m | Yes | 149µ | $4.50 (LT3380EUJM#PBF) |
| 12 | LTC3315B | 2 | 2.25 | 5.5 | 2 | 2 | Yes | 500m | Yes | 70µ | $1.80 (LTC3315BEV#TRMPBF) |
| 13 | LTC3311S | 1 | 2.25 | 5.5 | 12.5 | - | Yes | 500m | Yes | 1.3m | $2.90 (LTC3311SEV#PBF) |
| 14 | LT8698S | 1 | 7 | 42 | 3 | - | Yes | 5 | Yes | 2.5m | $1.80 (LT8698SEV-1#PBF) |
| 15 | LTC7802 | 2 | 4.5 | 40 | 12 | 12 | No | 800m | Yes | 14µ | $2.14 (LTC7802EUFDM#PBF) |
| 16 | LTM4691 | 2 | 2.25 | 3.6 | 2 | 2 | Yes | 500m | Yes | 85µ | $2.84 (LTM4691EV#PBF) |
| 17 | LTC7818 | 3 | 4.5 | 40 | 25 | 25 | No | 800m | Yes | 14µ | $3.95 (LTC7818EUJ#PBF) |
| 18 | LTC7817 | 3 | 1 | 40 | - | - | No | 800m | Yes | 14µ | $3.75 (LTC7817EUHF#PBF) |
| 19 | ADP5360 | 3 | 4.1 | 6.8 | 500m | 500m | Yes | 3.56 | Yes | 1.5m | $1.71 (ADP5360ACBZ-1-R7) |
| 20 | LT8652S | 2 | 2.6 | 18 | 8.5 | 8.5 | Yes | 600m | Yes | 16µ | $4.50 (LT8652SEV#PBF) |
| 21 | LTC3310S-1 | 1 | 2.25 | 5.5 | 10 | - | Yes | 1 | Yes | 1.3m | $2.70 (LTC3310SEV-1#PBF) |
| 22 | LTC3310S | 1 | 2.25 | 5.5 | 10 | - | Yes | 500m | Yes | 1.3m | $2.70 (LTC3310SEV#PBF) |
| 23 | LTC3310-1 | 1 | 2.25 | 5.5 | 10 | - | Yes | 1 | Yes | 1.3m | $3.24 (LTC3310HV-1#PBF) |
| 24 | LTC3310 | 1 | 2.25 | 5.5 | 10 | - | Yes | 500m | Yes | 1.3m | $3.09 (LTC3310JV#PBF) |
| 25 | LT8228 | 1 | 6 | 100 | 40 | - | No | 0 | Yes | 214µ | $6.60 (LT8228EFE#PBF) |
| 26 | LTC3309A | 1 | 2.25 | 5.5 | 6 | - | Yes | 500m | Yes | 40µ | $1.90 (LTC3309AEV#TRMPBF) |
| 27 | LTC3308A | 1 | 2.25 | 5.5 | 4 | - | Yes | 500m | Yes | 40µ | $1.70 (LTC3308AEV#TRMPBF) |
| 28 | LTC3307A | 1 | 2.25 | 5.5 | 3 | - | Yes | 500m | Yes | 40µ | $1.60 (LTC3307AEV#TRMPBF) |
| 29 | LT8650S-1 | 2 | 3 | 42 | 4 | 4 | Yes | 800m | Yes | 3.7µ | $6.58 (LT8650SHV-1#PBF) |
| 30 | LT8609B | 1 | 3 | 42 | 2 | - | Yes | 800m | Yes | 2.5µ | $2.40 (LT8609BEMSE#PBF) |
| 31 | LT8609A | 1 | 3 | 42 | 2 | - | Yes | 800m | Yes | 2.5µ | $2.50 (LT8609AEMSE#PBF) |
| 32 | LT8609 | 1 | 3 | 42 | 2 | - | Yes | 800m | Yes | 2.5µ | $2.50 (LT8609EMSE#PBF) |
| 33 | LT8636 | 1 | 3.4 | 42 | 5 | - | Yes | 970m | Yes | 1.7µ | $3.70 (LT8636EV#PBF) |
| 34 | LTM8024 (single output) | 1 | 3 | 40 | 7 | - | Yes | 800m | Yes | 90µ | $11.65 (LTM8024EY#PBF) |
| 35 | LTM8024 (dual output) | 2 | 3 | 40 | 3.5 | 3.5 | Yes | 800m | Yes | 90µ | $11.65 (LTM8024EY#PBF) |
| 36 | LTM4671 | 4 | 3.1 | 20 | 12 | 12 | Yes | 600m | Yes | 75m | $27.48 (LTM4671EY#PBF) |
| 37 | LTM4668A | 4 | 2.7 | 17 | 1.2 | 1.2 | Yes | 600m | Yes | 500µ | $6.55 (LTM4668AEY#PBF) |
| 38 | LTM4668 | 4 | 2.7 | 17 | 1.2 | 1.2 | Yes | 600m | Yes | 500µ | $6.55 (LTM4668EY#PBF) |
| 39 | LTM4664 (single output) | 1 | 30 | 58 | 50 | - | Yes | 500m | Yes | 1.6m | $57.48 (LTM4664EY#PBF) |
| 40 | LTM4664 (dual output) | 2 | 30 | 58 | 25 | 25 | Yes | 500m | Yes | 1.6m | $57.48 (LTM4664EY#PBF) |
| 41 | LTC7852 | 2 | 4.5 | 5.5 | 200 | 200 | No | 500m | Yes | 15m | $2.59 (LTC7852EUFD-1#PBF) |
| 42 | LT7101 | 1 | 4.4 | 105 | 1 | - | Yes | 1 | Yes | 200µ | $3.95 (LT7101EUHE#PBF) |
| 43 | LTC3315A | 2 | 2.25 | 5.5 | 2 | 2 | Yes | 500m | Yes | 70µ | $1.80 (LTC3315AEV#TRMPBF) |
| 44 | LT8550 | 4 | 3.6 | 80 | 25 | 25 | No | - | Yes | 800µ | $2.95 (LT8550EUKG#PBF) |
| 45 | LTC7151S | 1 | 3.1 | 20 | 15 | - | Yes | 500m | Yes | 2m | $3.75 (LTC7151SEV#PBF) |
| 46 | LTC3889 | 2 | 5 | 60 | 20 | 20 | No | 1 | Yes | 26m | $7.63 (LTC3889EUKG#PBF) |
| 47 | LT8653S | 2 | 2.6 | 42 | 2 | 2 | Yes | 800m | Yes | 6.2µ | $4.02 (LT8653SEV#PBF) |
| 48 | LTC3372 | 5 | 4.5 | 60 | 20 | 2 | No | 800m | Yes | 33µ | $5.75 (LTC3372EUK#PBF) |
| 49 | LTM8078 (single output) | 1 | 3 | 40 | 2.8 | - | Yes | 800m | Yes | 10m | $6.53 (LTM8078EY#PBF) |
| 50 | LTM8078 (dual output) | 2 | 3 | 40 | 1.4 | 1.4 | Yes | 800m | Yes | 10m | $6.53 (LTM8078EY#PBF) |
English
简体中文
日本語
Руccкий
