Datasheet for LTC3851AHMSE-1#PBF:
- Manufacturer Part Number : LTC3851AHMSE-1#PBF
- Manufacturer : AD
- Description : Synchronous Step-Down Switching Regulator Controller IC
- Series : LTC3851A-1
- Reference Price : USD 1.792
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Step-Down (Buck) Regulators
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 16-Lead MSOP w/ EP
- Pins : 16
- MFG Package Case : 05-08-1667
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 37
- Working Temperature : -40 to 150C
- Other Part Number : LTC3851AHMSE-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 LTC3851A-1 is a high performance synchronous step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 750kHz.
OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3851A-1 features a precision 0.8V reference and a power good indicator. A wide 4V to 38V (40V absolute maximum) input supply range encompasses most battery configurations and intermediate bus voltages.
The TK/SS pin ramps the output voltage during start-up and shutdown with coincident or ratiometric tracking. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The MODE/PLLIN pin selects among Burst Mode operation, pulse-skipping mode or continuous inductor current mode at light loads and allows the IC to be synchronized to an external clock. The LTC3851A-1 contains an improved PLL compared to the LTC3851-1.
The LTC3851A-1 is identical to the LTC3851A except that the ILIM pin is replaced by PGOOD.
| Features | |
| LTC3851 | Not Recommended For New Designs |
| LTC3851-1 | Not Recommended For New Designs |
| LTC3851A | Adjustable Current Limit |
| LTC3851A-1 | PGOOD Output |
Applications
- Automotive Systems
- Telecom Systems
- Industrial Equipment
- Distributed DC Power Systems
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.
