Datasheet for LTC3809IMSE-1#PBF:
- Manufacturer Part Number : LTC3809IMSE-1#PBF
- Manufacturer : AD
- Description : No RSENSE™, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking IC
- Series : LTC3809-1
- Reference Price : USD 2.072
- 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 : 10-Lead MSOP w/ EP
- Pins : 10
- MFG Package Case : 05-08-1664
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 50
- Working Temperature : -40 to 125C
- Other Part Number : LTC3809IMSE-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 LTC3809-1 is a synchronous step-down switching regulator controller that drives external complementary power MOSFETs using few external components. The constant frequency current mode architecture with MOSFET VDS sensing eliminates the need for a current sense resistor and improves efficiency.
Optional Burst Mode operation provides high efficiency operation at light loads. 100% duty cycle provides low dropout operation, extending operating time in battery-powered systems. Burst Mode is inhibited when the MODE pin is pulled low to reduce noise and RF interference.
The LTC3809-1 allows either coincident or ratiometric output voltage tracking. Switching frequency is fixed at 550kHz. Fault protection is provided by an overvoltage comparator and a short-circuit current limit comparator.
The LTC3809-1 is available in tiny footprint thermally enhanced DFN and 10-lead MSOP packages.
| Features | Package | |
| LTC3809 | PLL, Selectable Spread Spectrum, Power Good | 3x3 DFN-10, MS-10E |
| LTC3809-1 | Tracking | 3x3 DFN-10, MS-10E |
| LTC3808 | PLL, Selectable Spread Spectrum, Tracking, Power Good | 4x3 DFN-14, SSOP-16 |
Applications
- 1- or 2-Cell Lithium-Ion Powered Devices
- Notebook and Palmtop Computers, PDAs
- Portable Instruments
- 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.
