LT3680IDD#PBF
Active36V, 3.5A, 2.4MHZ STEP-DOWN SWITCHING REGULATOR WITH 75ΜA QUIESCENT CURRENT
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LT3680IDD#PBF
Active36V, 3.5A, 2.4MHZ STEP-DOWN SWITCHING REGULATOR WITH 75ΜA QUIESCENT CURRENT
Technical Specifications
Parameters and characteristics for this part
| Specification | LT3680IDD#PBF |
|---|---|
| Current - Output | 3.5 A |
| Frequency - Switching [Max] | 2.45 MHz |
| Frequency - Switching [Min] | 230 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 10-WFDFN Exposed Pad |
| Supplier Device Package | 10-DFN (3x3) |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 36 V |
| Voltage - Input (Min) [Min] | 3.6 V |
| Voltage - Output (Max) [Max] | 30 V |
| Voltage - Output (Min/Fixed) [Min] | 0.79 V |
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 | $ 15.25 | |
| 10 | $ 10.89 | |||
| 25 | $ 9.77 | |||
| 100 | $ 8.51 | |||
| 250 | $ 7.91 | |||
| 500 | $ 7.54 | |||
| 1000 | $ 7.41 | |||
Description
General part information
LT3680 Series
The LT3680 is an adjustable frequency (200kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages up to 36V. A high efficiency 95mΩ switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability. Low ripple Burst Mode®operation maintains high efficiency at low output currents while keeping output ripple below 15mV in a typical application. In addition, the LT3680 can further enhance low output current efficiency by drawing bias current from the output when VOUTis above 3V. Shutdown reduces input supply current to less than 1µA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). A power good flag signals when VOUTreaches 91% of the programmed output voltage. The LT3680 is available in 10-Pin MSOP and 3mm × 3mm DFN packages with exposed pads for low thermal resistance.ApplicationsAutomotive Battery RegulationPower for Portable ProductsDistributed Supply RegulationIndustrial SuppliesWall Transformer Regulation
Documents
Technical documentation and resources