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
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Актуальные ресурсы по теме
Заметки разработчика
- Highly Configurable, Multiple Output Cascaded Buck Converter Steps from 60 V to 0.8 V
- Flexible, Dual Output, 6-Phase Buck Controller Drives 12 V to 1.0 V/200 A Core Supply with 90.0% Efficiency
- 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
Технические статьи
- Wide 5 V to 140 V Input to 12 V, 200 mA Bias Power Supply
- Reduce Costs in the Long Run: Use the Same Qualified Parts for Both Positive and Negative Output DC-to-DC Converters
- Ultralow Noise, High Current, Compact DC-to-DC Converter Solution for Signal and Data Processing Circuits
- What to Consider in Regard to Switching Frequency
- What Actually Is a Hot Loop?
Analog Dialogue
- Automotive USB 2.0 and a 5 V, Type-C Solution for Charging and Robust Data Line Protection
- 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
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
- AN-166: In Flight Update with Linduino PDF
- AN-155: Fault Log Decoding with Linduino PSM PDF
- AN-153: Linduino for Power System Management 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 | LTC3888-1 | 2 | 4.5 | 26.5 | 400 | 400 | No | 300m | - | 28m | $5.69 (LTC3888EUHG-1#PBF) |
| 2 | LTM8051 | 4 | 3 | 40 | 1.2 | 1.2 | Yes | 800m | Yes | 60µ | $9.03 (LTM8051EY#PBF) |
| 3 | LTC7802-3.3 | 2 | 4.5 | 20 | 20 | 12 | Yes | 3.3 | Yes | 12µ | $2.14 (LTC7802EUFDM-3.3#PBF) |
| 4 | LTC7132 | 2 | 4.5 | 20 | 25 | 25 | Yes | 500m | Yes | 25m | $6.75 (LTC7132EY#PBF) |
| 5 | LTC7871 | 1 | 1.2 | 100 | 180 | - | No | 1.2 | Yes | 10m | $3.60 (LTC7871ELWE#PBF) |
| 6 | LTC7803 | 1 | 4.5 | 40 | 20 | - | No | 800m | Yes | 12µ | $1.85 (LTC7803EMSE#PBF) |
| 7 | LT8618-3.3 | 1 | 3.6 | 60 | 100m | - | Yes | 3.3 | Yes | 2.5µ | $1.65 (LT8618EDDB-3.3#TRMPBF) |
| 8 | LT8618 | 1 | 3.6 | 60 | 100m | - | Yes | 800m | Yes | 2.5µ | $1.65 (LT8618EDDB#TRMPBF) |
| 9 | LT3383 | 7 | 2.7 | 5.5 | 2.5 | 2.5 | Yes | 850m | Yes | 248µ | $4.30 (LT3383EUJM#PBF) |
| 10 | LT3380 | 7 | 2.7 | 5.5 | 2.5 | 2.5 | Yes | 850m | Yes | 149µ | $4.50 (LT3380EUJM#PBF) |
| 11 | LTC3315B | 2 | 2.25 | 5.5 | 2 | 2 | Yes | 500m | Yes | 70µ | $1.80 (LTC3315BEV#TRMPBF) |
| 12 | LTC3311S | 1 | 2.25 | 5.5 | 12.5 | - | Yes | 500m | Yes | 1.3m | $2.90 (LTC3311SEV#PBF) |
| 13 | LTC3309B | 1 | 2.25 | 5.5 | 6 | - | Yes | 500m | Yes | 40µ | $1.90 (LTC3309BEV#TRMPBF) |
| 14 | LTC3307B | 1 | 2.25 | 5.5 | 3 | - | Yes | 500m | Yes | 40µ | $1.60 (LTC3307BEV#TRMPBF) |
| 15 | LT8698S | 1 | 7 | 42 | 3 | - | Yes | 5 | Yes | 2.5m | $1.80 (LT8698SEV-1#PBF) |
| 16 | LT8604 | 1 | 3.2 | 42 | 120m | - | Yes | 778m | Yes | 1.7µ | $1.50 (LT8604EDDBM#TRMPBF) |
| 17 | LTC7802 | 2 | 4.5 | 40 | 12 | 12 | No | 800m | Yes | 14µ | $2.14 (LTC7802EUFDM#PBF) |
| 18 | LTM4691 | 2 | 2.25 | 3.6 | 2 | 2 | Yes | 500m | Yes | 85µ | $2.84 (LTM4691EV#PBF) |
| 19 | LTC7817 | 3 | 1 | 40 | - | - | No | 800m | Yes | 14µ | $3.75 (LTC7817EUHF#PBF) |
| 20 | LT8648S | 1 | 2.45 | 42 | 15 | - | Yes | 600m | Yes | 140µ | $5.50 (LT8648SEV#PBF) |
| 21 | LTM4657 | 1 | 3.1 | 20 | 8 | - | Yes | 500m | Yes | 18m | $6.48 (LTM4657EY#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 | LTC3308A | 1 | 2.25 | 5.5 | 4 | - | Yes | 500m | Yes | 40µ | $1.70 (LTC3308AEV#TRMPBF) |
| 29 | LTC3307A | 1 | 2.25 | 5.5 | 3 | - | Yes | 500m | Yes | 40µ | $1.60 (LTC3307AEV#TRMPBF) |
| 30 | LT8650S-1 | 2 | 3 | 42 | 4 | 4 | Yes | 800m | Yes | 3.7µ | $6.58 (LT8650SHV-1#PBF) |
| 31 | LT8609B | 1 | 3 | 42 | 2 | - | Yes | 800m | Yes | 2.5µ | $2.40 (LT8609BEMSE#PBF) |
| 32 | LT8609A | 1 | 3 | 42 | 2 | - | Yes | 800m | Yes | 2.5µ | $2.50 (LT8609AEMSE#PBF) |
| 33 | LT8609 | 1 | 3 | 42 | 2 | - | Yes | 800m | Yes | 2.5µ | $2.50 (LT8609EMSE#PBF) |
| 34 | LT8636 | 1 | 3.4 | 42 | 5 | - | Yes | 970m | Yes | 1.7µ | $3.70 (LT8636EV#PBF) |
| 35 | LTM8024 (single output) | 1 | 3 | 40 | 7 | - | Yes | 800m | Yes | 90µ | $11.65 (LTM8024EY#PBF) |
| 36 | LTM8024 (dual output) | 2 | 3 | 40 | 3.5 | 3.5 | Yes | 800m | Yes | 90µ | $11.65 (LTM8024EY#PBF) |
| 37 | LTM4671 | 4 | 3.1 | 20 | 12 | 12 | Yes | 600m | Yes | 75m | $27.48 (LTM4671EY#PBF) |
| 38 | LTM4668A | 4 | 2.7 | 17 | 1.2 | 1.2 | Yes | 600m | Yes | 500µ | $6.55 (LTM4668AEY#PBF) |
| 39 | LTM4668 | 4 | 2.7 | 17 | 1.2 | 1.2 | Yes | 600m | Yes | 500µ | $6.55 (LTM4668EY#PBF) |
| 40 | LTM4664 (single output) | 1 | 30 | 58 | 50 | - | Yes | 500m | Yes | 1.6m | $57.48 (LTM4664EY#PBF) |
| 41 | LTM4664 (dual output) | 2 | 30 | 58 | 25 | 25 | Yes | 500m | Yes | 1.6m | $57.48 (LTM4664EY#PBF) |
| 42 | LTC7852 | 2 | 4.5 | 5.5 | 200 | 200 | No | 500m | Yes | 15m | $2.59 (LTC7852EUFD-1#PBF) |
| 43 | LT7101 | 1 | 4.4 | 105 | 1 | - | Yes | 1 | Yes | 200µ | $3.95 (LT7101EUHE#PBF) |
| 44 | LTC7818 | 3 | 4.5 | 40 | 25 | 25 | No | 800m | Yes | 14µ | $3.95 (LTC7818EUJ#PBF) |
| 45 | LTC3315A | 2 | 2.25 | 5.5 | 2 | 2 | Yes | 500m | Yes | 70µ | $1.80 (LTC3315AEV#TRMPBF) |
| 46 | LT8550 | 4 | 3.6 | 80 | 25 | 25 | No | - | Yes | 800µ | $2.95 (LT8550EUKG#PBF) |
| 47 | ADP5360 | 3 | 4.1 | 6.8 | 500m | 500m | Yes | 3.56 | Yes | 1.5m | $1.71 (ADP5360ACBZ-1-R7) |
| 48 | LTC7151S | 1 | 3.1 | 20 | 15 | - | Yes | 500m | Yes | 2m | $3.75 (LTC7151SEV#PBF) |
| 49 | LTC3889 | 2 | 5 | 60 | 20 | 20 | No | 1 | Yes | 26m | $7.63 (LTC3889EUKG#PBF) |
| 50 | LT8653S | 2 | 2.6 | 42 | 2 | 2 | Yes | 800m | Yes | 6.2µ | $4.02 (LT8653SEV#PBF) |
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