LT3509IMSE#PBF
ActiveCONV DC-DC 3.6V TO 36V SYNCHRONOUS STEP DOWN DUAL-OUT 0.8V TO 35.28V 0.7A/0.7A AUTOMOTIVE 16-PIN MSOP EP TUBE
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LT3509IMSE#PBF
ActiveCONV DC-DC 3.6V TO 36V SYNCHRONOUS STEP DOWN DUAL-OUT 0.8V TO 35.28V 0.7A/0.7A AUTOMOTIVE 16-PIN MSOP EP TUBE
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT3509IMSE#PBF |
|---|---|
| Current - Output | 700 mA |
| Frequency - Switching [Max] | 2.15 MHz |
| Frequency - Switching [Min] | 260 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 125 ¯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 | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 36 V |
| Voltage - Input (Min) [Min] | 3.6 V |
| Voltage - Output (Max) [Max] | 34.2 V |
| Voltage - Output (Min/Fixed) | 0.8 V |
LT3509 Series
Dual 36V, 700mA Step-Down Regulator
| Part | Package / Case | Package / Case | Voltage - Input (Max) [Max] | Voltage - Output (Max) [Max] | Voltage - Output (Min/Fixed) | Synchronous Rectifier | Function | Current - Output | Mounting Type | Voltage - Input (Min) [Min] | Operating Temperature [Min] | Operating Temperature [Max] | Output Type | Output Configuration | Supplier Device Package | Topology | Number of Outputs | Frequency - Switching [Max] | Frequency - Switching [Min] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | 16-TFSOP Exposed Pad | 0.118 in 3 mm | 36 V | 34.2 V | 0.8 V | Step-Down | 700 mA | Surface Mount | 3.6 V | -40 °C | 125 ¯C | Adjustable | Positive | 16-MSOP-EP | Buck | 2 | 2.15 MHz | 260 kHz | |
Analog Devices | 14-WFDFN Exposed Pad | 36 V | 34.2 V | 0.8 V | Step-Down | 700 mA | Surface Mount | 3.6 V | -40 °C | 125 ¯C | Adjustable | Positive | 14-DFN (4x3) | Buck | 2 | 2.15 MHz | 260 kHz | ||
Analog Devices | 16-TFSOP Exposed Pad | 0.118 in 3 mm | 36 V | 34.2 V | 0.8 V | Step-Down | 700 mA | Surface Mount | 3.6 V | -40 °C | 150 °C | Adjustable | Positive | 16-MSOP-EP | Buck | 2 | 2.15 MHz | 260 kHz | |
Analog Devices | 16-TFSOP Exposed Pad | 0.118 in 3 mm | 36 V | 34.2 V | 0.8 V | Step-Down | 700 mA | Surface Mount | 3.6 V | -40 °C | 125 ¯C | Adjustable | Positive | 16-MSOP-EP | Buck | 2 | 2.15 MHz | 260 kHz |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 11.68 | |
| 10 | $ 8.20 | |||
| 25 | $ 7.30 | |||
| 100 | $ 6.30 | |||
| 250 | $ 5.81 | |||
| 500 | $ 5.52 | |||
| 1000 | $ 5.27 | |||
Description
General part information
LT3509 Series
The LT3509 is a dual, current mode, step-down switching regulator, with internal power switches each capable of providing 700mA output current. This regulator provides a compact and robust solution for multi-rail systems in harsh environments. It incorporates several protection features including overvoltage lockout and cycle-by-cycle current limit. Thermal shutdown provides additional protection. The loop compensation components and the boost diodes are integrated on-chip. Switching frequency is set by a single external resistor. External synchronization is also possible. The high maximum switching frequency allows the use of small inductors and ceramic capacitors for low ripple. Constant frequency operation above the AM band avoids interference with radio reception, making the LT3509 well suited for automotive applications. Each regulator has an independent shutdown and soft-start control pin. When both converters are powered down, the common circuitry enters a low current shutdown state.ApplicationsAutomotive ElectronicsIndustrial ControlsWall Transformer RegulationNetworking DevicesCPU, DSP, or FPGA Power
Documents
Technical documentation and resources