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ADI LTC3805EMSE-5#PBF product image
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ADI LTC3805EMSE-5#PBFRoHS

Manufacturer
ADI
MPN
LTC3805EMSE-5#PBF
LCSC Part #
C686071
Packaging
MSOP-10-EP
Customer #
Key Attributes
Adjustable Frequency Current Mode Flyback/Boost/SEPIC DC/DC Controller
Datasheetpdf iconADI LTC3805EMSE-5#PBF
In-Stock: 4
4 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 4.6239$ 4.62
10+$ 4.5068$ 45.07
30+$ 4.4287$ 132.86
100+$ 4.3507$ 435.07
Standard Packaging50/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingMSOP-10-EP
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Introduction

AI Translation

The LTC3805-5 is a current mode DC/DC controller designed to drive an N-channel MOSFET in flyback, boost and SEPIC converter applications. Operating frequency and slope compensation can be programmed by external resistors. Programmable overcurrent sensing protects the converter from overload and short-circuit conditions. Soft-start can be programmed using an external capacitor and the soft-start capacitor also programs an automatic restart feature. The LTC3805-5 provides ±1.5% output voltage accuracy and consumes only 360μA of quiescent current during normal operation and only 40μA during micropower startup. Using a 9.5V internal shunt regulator, the LTC3805-5 can be powered from a high VIN through a resistor or it can be powered directly from a low impedance DC voltage from 4.7V to 8.8V. The LTC3805-5 is available in the 10-lead MSOP package and the 3mm×3mm DFN package.

Features

AI Translation
  • VIN and VOUT Limited Only by External Components
  • 4.5V Undervoltage Lockout Threshold
  • Adjustable Slope Compensation
  • Adjustable Overcurrent Protection with Automatic Restart
  • Adjustable Operating Frequency (70kHz to 700kHz) With One External Resistor
  • Synchronizable to an External Clock
  • ±1.5% Reference Accuracy
  • Only 100mV Current Sense Voltage Drop
  • RUN Pin with Precision Threshold and Adjustable Hysteresis
  • Programmable Soft-Start with One External Capacitor
  • Low Quiescent Current: 360μA
  • Small 10-Lead MSOP and 3mm×3mm DFN

Applications

AI Translation
  • Automotive Power Supplies
  • Telecom Power Supplies
  • Isolated Electronic Equipment
  • Auxiliary/Housekeeping Power Supplies
  • Power over Ethernet