Datasheet for LTC1871EMS-1#PBF:
- Manufacturer Part Number : LTC1871EMS-1#PBF
- Manufacturer : AD
- Description : Wide Input Range, No RSENSE™Current Mode Boost, Flyback and SEPIC Controller IC
- Series : LTC1871-1
- Reference Price : USD 2.12
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Flyback, Forward and Isolated Controllers
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 10-Lead MSOP
- Pins : 10
- MFG Package Case : 05-08-1661
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 50
- Working Temperature : -40 to 125C
- Other Part Number : LTC1871EMS-1#PBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC1871-1 is a wide input range, current mode, boost, flyback or SEPIC controller that drives an Nchannel power MOSFET and requires very few external components. It eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency. Higher output voltage applications are possible with the LTC1871-1 by connecting the SENSE pin to a resistor in the source of the power MOSFET.
The IC’s operating 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.
The LTC1871-1 differs from the LTC1871 by having a lower pulse skip threshold, making it ideal for applications requiring constant frequency operation at light loads. The lower pulse skip threshold also helps maintain constant frequency operation in applications with a wide input voltage range. For applications requiring primary-to-secondary side isolation, please refer to the LTC1871 datasheet.
The LTC1871-1 is available in the 10-lead MSOP package.
| Vin Range | INTVcc | Features | |
| LTC1871 | 2.5V to 36V | 5.2V | - |
| LTC1871-1 | 2.5V to 36V | 5.2V | Lower Burst Mode Threshold (0.195V vs. 0.3V) |
| LTC1871-7 | 6V to 36V | 7V | Drives 6V Gate N-Channel MOSFETs |
| LTC1871X | 2.5V to 36V | 5.2V | 175°C Junction Temp, 100% Tested at 175°C |
Applications
- Telecom Power Supplies
- Portable Electronic Equipment
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
