A buck or step-down topology is used in DC-DC switching converters where the output voltage is lower than the input with or without input-output isolation.
We have a large offer of buck regulators - with integrated power switches – and controllers providing a wide range of features including soft start to minimize inrush current and power-good to enable power-up sequencing. Programmable devices are also available to help design buck converters fine-tuned for specific EMI, EMC, efficiency and power density targets and use cases.
We have also developed an isolated, single-stage direct 48 V to the Point-of-Load (PoL) resonant, conversion solution for use in CPUs or DDR memories compliant with Intel VR13 and VR12.5 specifications. ST also offers a fully scalable solution for up to 6 interleaved cells with dynamic cell shedding and pulse skipping features.
In addition, we have a comprehensive set of evaluation and development tools as well as reference designs to help compress time to market.
精选 视频
| 产品型号 | 描述 | |
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| STEVAL-1PS01AJR | Evaluation board based on ST1PS01AJR 400 mA nano-quiescent synchronous step-down converter |
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| STEVAL-1PS01EJR | Evaluation board based on the ST1PS01EJR 400 mA nano-quiescent synchronous step-down converter |
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| STEVAL-1PS01DJR | Evaluation board based on ST1PS01DJR 400 mA nano-quiescent synchronous step-down converter |
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| STEVAL-ISA152V1 | 3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987 |
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| STEVAL-ISA158V1 | 38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986 |
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| STEVAL-ISA207V1 | 3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987 |
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| STEVAL-ISA205V1 | 38 V, 2 A synchronous step-down switching regulator evaluation board based on the A6986H |
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| STEVAL-ISA099V1 | 3 A step-down switching demonstration board based on the L7986 in DFN10 package |
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| STEVAL-ISA069V1 | 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package |
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| STEVAL-ISA082V1 | 4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPHR |
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| STEVAL-ISA095V1 | Up to 3 A step-down switching regulator based on the ST1S14 |
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| STEVAL-ISA094V1 | 3 A step-down switching power supply demonstration board based on the L7981 (HSOP8) |
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| STEVAL-ISA055V1 | 0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX |
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| STEVAL-ISA043V2 | 1.5 A / 3.3 V high frequency synchronous buck converter demonstration board based on the ST1S06 |
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Evaluation board based on ST1PS01AJR 400 mA nano-quiescent synchronous step-down converter
Evaluation board based on the ST1PS01EJR 400 mA nano-quiescent synchronous step-down converter
Evaluation board based on ST1PS01DJR 400 mA nano-quiescent synchronous step-down converter
3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987
38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986
3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987
38 V, 2 A synchronous step-down switching regulator evaluation board based on the A6986H
3 A step-down switching demonstration board based on the L7986 in DFN10 package
3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package
4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPHR
Up to 3 A step-down switching regulator based on the ST1S14
3 A step-down switching power supply demonstration board based on the L7981 (HSOP8)
0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX
1.5 A / 3.3 V high frequency synchronous buck converter demonstration board based on the ST1S06
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ST-DIODE-FINDER ST Diode product finder application for Android and iOS 产品型号Diode product finder application for Android and iOS
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eDesignSuite
电源管理
| 产品型号 | 描述 |
|---|---|
| A7985A | 2 A step-down switching regulator for automotive applications |
| A7986A | 3 A step-down switching regulator for automotive applications |
| L6985F | 38 V 500 mA synchronous step-down switching regulator with 30 uA quiescent current |
| L6986 | 38 V 2 A synchronous step-down switching regulator with 30 uA quiescent current |
| L6986F | 38 V 1.5 A synchronous step-down switching regulator with 30 uA quiescent current |
| L7987 | 61 V 3 A asynchronous step-down switching regulator with adjustable current limitation |
| L7987L | 61 V 2 A asynchronous step-down switching regulator with adjustable current limitation |
| ST1S06 | Synchronous rectification with inhibit, 1.5 A, 1.5 MHz adjustable, step-down switching regulator |
| ST1S12XX | Synchronous rectification with inhibit, 0.7 A, 1.7 MHz adjustable, step-down switching regulator |
| ST1S14 | Up to 3 A step down switching regulator |
| ST1S31 | 3 A DC step-down switching regulator |
| ST1S40 | 3A DC step-down switching regulator |
| ST1S41 | 4 A step-down switching regulator |
