LTC3646EMSE#PBF
ActiveSWITCHING VOLTAGE REGULATORS 40V, 1A SYNC BUCK CONV
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LTC3646EMSE#PBF
ActiveSWITCHING VOLTAGE REGULATORS 40V, 1A SYNC BUCK CONV
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3646EMSE#PBF |
|---|---|
| Current - Output | 1 A |
| Frequency - Switching [Max] | 3 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | Exposed Pad, 16-TFSOP |
| Package / Case | 3 mm, 0.118 in |
| Supplier Device Package | 16-MSOP-EP |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Min) [Min] | 4 V |
| Voltage - Output (Max) [Max] | 30 V |
| Voltage - Output (Min/Fixed) | 2 V |
LTC3646LTC3646-1 Series
40V, 1A Synchronous Step-Down Converter
| Part | Supplier Device Package | Number of Outputs | Current - Output | Output Configuration | Topology | Mounting Type | Frequency - Switching [Min] | Frequency - Switching [Max] | Output Type | Voltage - Output (Max) [Max] | Voltage - Output (Min/Fixed) | Function | Synchronous Rectifier | Operating Temperature [Min] | Operating Temperature [Max] | Voltage - Input (Min) [Min] | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | 14-DFN (4x3) | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 14-WFDFN Exposed Pad | ||
Analog Devices Inc./Maxim Integrated | 16-MSOP-EP | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 16-TFSOP Exposed Pad | 0.118 in 3 mm | |
Analog Devices Inc./Maxim Integrated | 14-DFN (4x3) | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 15 V | 0.6 V | Step-Down | -40 °C | 150 °C | 4 V | 14-WFDFN Exposed Pad | ||
Analog Devices Inc./Maxim Integrated | 16-MSOP-EP | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 16-TFSOP Exposed Pad | 0.118 in 3 mm | |
Analog Devices Inc./Maxim Integrated | 16-MSOP-EP | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 16-TFSOP Exposed Pad | 0.118 in 3 mm | |
Analog Devices Inc./Maxim Integrated | 14-DFN (4x3) | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 15 V | 0.6 V | Step-Down | -40 °C | 150 °C | 4 V | 14-WFDFN Exposed Pad | ||
 Analog Devices Inc./Maxim Integrated | 16-MSOP-EP | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 16-TFSOP Exposed Pad | 0.118 in 3 mm | |
 Analog Devices Inc./Maxim Integrated | 14-DFN (4x3) | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 14-WFDFN Exposed Pad | ||
Analog Devices Inc./Maxim Integrated | 14-DFN (4x3) | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 14-WFDFN Exposed Pad | ||
 Analog Devices Inc./Maxim Integrated | 16-MSOP-EP | 1 | 1 A | Positive | Buck | Surface Mount | 200 kHz | 3 MHz | Adjustable | 30 V | 2 V | Step-Down | -40 °C | 150 °C | 4 V | 16-TFSOP Exposed Pad | 0.118 in 3 mm |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
LTC3646LTC3646-1 Series
The LTC3646 is a high efficiency, step-down DC/DC converter with internal high side and synchronous power FETs. It draws only 140μA typical DC supply current in Burst Mode operation at no load while maintaining output voltage regulation.The LTC3646 can supply up to a 1A load, and its combination of Burst Mode operation, integrated power switches and low quiescent current provides high efficiency over a broad range of load currents. Alternatively, it can be used in forced continuous mode for ripple sensitive applications.The LTC3646 has a wide 4.0V to 40V input range and its patented controlled on-time architecture and 0.6V reference voltage allow for large step-down ratios without the risk of output overvoltage. The frequency may be set between 200kHz and 3.0MHz with a program resistor or synchronized to an external clock.The internal soft-start, short-circuit protection and voltage rating make the LTC3646 a robust part ideal for high voltage applications.ApplicationsPoint of Load Power SupplyIntermediate Bus PowerAutomotive Applications
Documents
Technical documentation and resources