降压型稳压器
Analog Devices 制造了一系列兼具同步和异步开关的高性能降压型开关稳压器 IC 和降压型开关控制器 IC 产品。这些开关稳压器可提供从小于 2 V 至高达 100 V 以上的典型输入电压能力、高达 4 MHz 的开关频率及高达 96% 的运作效率。利用突发模式 (Burst Mode®) 操作，可获得几十微安级的静态电流。这些特点的组合造就了外形非常小巧和扁平的降压型开关稳压器电路实现方案，所需的外部组件极少。
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设计笔记
- LTC7803或先进电源便捷设计之路
- 具2.5 μA静态电流和超低EMI的42 V单片式同步降压型稳压器
- 具有6.2 µA静态电流的双通道、42 V、2 A、单片、同步降压型Silent Switcher 2稳压器
- 60 V输入单芯片转换器可在没有超级电容或其他附加元件的情况下为关键电路供电
- 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
- 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 - 低温运行、144W、4 x 40A μModule POL 稳压器
- DN562 - 具可调栅极驱动的 60V、低 IQ、双输出同步降压型控制器
- DN560 - 高效率、15V 轨至轨输出同步降压型稳压器能提供或吸收 5A
- DN558 - 双向 DC/DC 稳压器和超级电容器充电器
- DN544 - 具 30μA 静态电流的 42V、四通道、单片式、同步降压型稳压器
- DN554 - 具数字电源系统管理功能的 6A 单片式同步 DC/DC 降压型转换器
- DN551 - 用于 DDR、QDR 和 QDR-IV SRAM 的超薄型三路输出 μModule 稳压器可安放在 0.5cm2 面积内和 PCB 的背面
- DN550 - 60V、4A 同步单片式降压型稳压器具有轨至轨操作能力
- DN547 - 具相位扩展器的 VID 控制器可为最新一代的 FPGA、ASIC 和处理器提供 120A 电源
- DN1038 - 42V High Power Density Buck Regulators in a Tiny QFN Package
- DN546 - 超薄型双通道 2.5A 或单通道 5A μModule 稳压器可安装在 PCB 的背面，从而为数字 IC 腾出了正面的空间
- DN543 - 面向工业、电信和汽车环境的坚固型 140V VIN、400mA 降压型稳压器
- DN542 - 具数字电源系统管理功能的双通道 9A、降压型 μModule 稳压器
- DN537 - 具超低静态电流的 17V 输入、双路 1A 输出同步降压型稳压器
- DN532 - 具有 4V 至 150V 宽输入电压范围的高效率 100mA 同步降压型转换器
- DN527 - 具高级输入和负载保护功能的 10A μModule 降压型稳压器
- DN434 - Multiphase DC/DC Controller Pushes Accuracy and Bandwidth Limits
- DN524 - 具数字接口的双输出 13A μModule 稳压器适用于电源的远程监测和控制
- DN387 - Cascadable 7A Point-of-Load Monolithic Buck Converter
- DN304 4MHz Monolithic Synchronous Step-Down Regulators Bring High Efficiency to Space-Sensitive Applications
技术文章
- Ultralow Noise, High Current, Compact DC-to-DC Converter Solution for Signal and Data Processing Circuits
- 关于开关频率需考虑的因素
- 热回路究竟是什么？
- 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
- 面向汽车和工业应用的40 V输入、3.5 A Silent Switcher μModule稳压器
- 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
模拟对话
- 直接通过汽车电池输入进行DC-DC转换：5 A、3.3 V和5 V电源符合严格的EMI辐射标准
- 轻松快速设计开关模式电源EMI滤波器
- 使用高效率、高频率、低EMI DC/DC转换器降低对陶瓷电容的电源要求
- 基于常见降压转换器的双极性、单路输出、可调节电源
- 通过12 V至12 V双向DC/DC控制器 实现汽车双电池冗余
- 如何选择散热性能良好的高功率可扩展式POL调节器并节省电路板空间
应用笔记
- 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
- AN152 - Power System Management Addressing (Rev. A) PDF
- AN153 - 用于电源系统管理的 Linduino PDF
- AN145 - Overview of the EEPROM in LTC PSM Devices PDF
- AN149 - 开关模式电源的建模和环路补偿设计 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
降压型稳压器
| 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 | LTC3308A | 1 | 2.25 | 5.5 | 4 | - | Yes | 500m | Yes | 40µ | $1.70 (LTC3308AEV#TRMPBF) |
| 15 | LT8698S | 1 | 7 | 42 | 3 | - | Yes | 5 | Yes | 2.5m | $1.80 (LT8698SEV-1#PBF) |
| 16 | LTC7802 | 2 | 4.5 | 40 | 12 | 12 | No | 800m | Yes | 14µ | $2.14 (LTC7802EUFDM#PBF) |
| 17 | LTM4691 | 2 | 2.25 | 3.6 | 2 | 2 | Yes | 500m | Yes | 85µ | $2.84 (LTM4691EV#PBF) |
| 18 | LTC7818 | 3 | 4.5 | 40 | 25 | 25 | No | 800m | Yes | 14µ | $3.95 (LTC7818EUJ#PBF) |
| 19 | LTC7817 | 3 | 1 | 40 | - | - | No | 800m | Yes | 14µ | $3.75 (LTC7817EUHF#PBF) |
| 20 | ADP5360 | 3 | 4.1 | 6.8 | 500m | 500m | Yes | 3.56 | Yes | 1.5m | $1.71 (ADP5360ACBZ-1-R7) |
| 21 | LT8652S | 2 | 2.6 | 18 | 8.5 | 8.5 | Yes | 600m | Yes | 16µ | $4.50 (LT8652SEV#PBF) |
| 22 | LTC3310S-1 | 1 | 2.25 | 5.5 | 10 | - | Yes | 1 | Yes | 1.3m | $2.70 (LTC3310SEV-1#PBF) |
| 23 | LTC3310S | 1 | 2.25 | 5.5 | 10 | - | Yes | 500m | Yes | 1.3m | $2.70 (LTC3310SEV#PBF) |
| 24 | LTC3310-1 | 1 | 2.25 | 5.5 | 10 | - | Yes | 1 | Yes | 1.3m | $3.24 (LTC3310HV-1#PBF) |
| 25 | LTC3310 | 1 | 2.25 | 5.5 | 10 | - | Yes | 500m | Yes | 1.3m | $3.09 (LTC3310JV#PBF) |
| 26 | LT8228 | 1 | 6 | 100 | 40 | - | No | 0 | Yes | 214µ | $6.60 (LT8228EFE#PBF) |
| 27 | LTC3309A | 1 | 2.25 | 5.5 | 6 | - | Yes | 500m | Yes | 40µ | $1.90 (LTC3309AEV#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) |
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