LTC3245IDE#PBF
ActiveCHARGE PUMP STPUP/STPDN 2.5V TO 5V/3.3V/5V 250MA 12-PIN DFN EP TUBE
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LTC3245IDE#PBF
ActiveCHARGE PUMP STPUP/STPDN 2.5V TO 5V/3.3V/5V 250MA 12-PIN DFN EP TUBE
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3245IDE#PBF |
|---|---|
| Current - Output | 250 mA |
| Frequency - Switching | 450 kHz |
| Function | Step-Up/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 (Programmable) |
| Package / Case | 12-WFDFN Exposed Pad |
| Supplier Device Package | 12-DFN (4x3) |
| Synchronous Rectifier | False |
| Voltage - Input (Max) [Max] | 38 V |
| Voltage - Input (Min) [Min] | 2.7 V |
| Voltage - Output (Max) | 5 V |
| Voltage - Output (Min/Fixed) | 2.5 V |
| Voltage - Output (Min/Fixed) | 3.3 V |
| Voltage - Output (Min/Fixed) | 5 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 | $ 10.75 | |
| 10 | $ 7.50 | |||
| 25 | $ 6.67 | |||
| 100 | $ 5.73 | |||
| 250 | $ 5.28 | |||
| 500 | $ 5.00 | |||
| 1000 | $ 4.78 | |||
Description
General part information
LTC3245 Series
The LTC3245 is a switched capacitor buck-boost DC/DC converter that produces a regulated output (3.3V, 5V or adjustable) from a 2.7V to 38V input. The device uses switched capacitor fractional conversion to maintain regulation over a wide range of input voltage. Internal circuitry automatically selects the conversion ratio to optimize efficiency as input voltage and load conditions vary. No inductors are required.The unique constant frequency architecture provides a lower noise output than conventional charge pump regulators. To optimize efficiency at the expense of slightly higher output ripple, the device has pin selectable Burst Mode operation.Low operating current (20μA with no load, 4μA in shutdown) and low external parts count (three small ceramic capacitors) make the LTC3245 ideally suited for low power, space constrained automotive/industrial applications. The device is short-circuit and overtemperature protected, and is available in thermally enhanced 12-pin MSOP and low profile 3mm × 4mm 12-pin DFN packages.APPLICATIONSAutomotive ECU/CAN Transceiver SuppliesIndustrial Housekeeping SuppliesLow Power 12V to 5V Conversion
Documents
Technical documentation and resources