LTC1871EMS-7#PBF
ActiveHIGH INPUT VOLTAGE, CURRENT MODE BOOST, FLYBACK AND SEPIC CONTROLLER
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LTC1871EMS-7#PBF
ActiveHIGH INPUT VOLTAGE, CURRENT MODE BOOST, FLYBACK AND SEPIC CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC1871EMS-7#PBF |
|---|---|
| Clock Sync | True |
| Control Features | Enable, Frequency Control |
| Duty Cycle (Max) [Max] | 92 % |
| Frequency - Switching [Max] | 1 MHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Up/Step-Down, Step-Up |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 10-MSOP |
| Synchronous Rectifier | False |
| Topology | Boost, SEPIC, Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 36 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | N/A | 3506 | $ 9.68 | 1m+ |
Description
General part information
LTC1871-7 Series
The LTC1871-7 is a current mode, boost, flyback and SEPIC controller optimized for driving 6V-rated MOSFETs in high voltage applications. The LTC1871-7 works equally well in low or high power applications and requires few components to provide a complete power supply solution. The switching frequency can be set with an external resistor over a 50kHz to 1MHz range, and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 6V and a low shutdown quiescent current of 10µA make the LTC1871-7 well suited for battery-operated systems. For applications requiring constant frequency operation, Burst Mode operation can be defeated using the MODE/SYNC pin. The LTC1871-7 is available in the 10-lead MSOP package.VINRangeINTVCCFeaturesLTC18712.5V to 36V5.2V-LTC1871-12.5V to 36V5.2VLower Burst Mode Threshold (0.195V vs. 0.3V)LTC1871-76V to 36V7VDrives 6V Gate N-Channel MOSFETsLTC1871X2.5V to 36V5.2V175°C Junction Temp, 100% Tested at 175°CApplicationsTelecom Power Supplies42V Automotive Systems24V Industrial ControlsIP Phone Power Supplies
Documents
Technical documentation and resources
