elecena.pl

LTC3809

Analog Devices

LTC3809 RSS Sample
  • Zgodny z RoHS
  • Darmowa próbka
Kod:
LTC3809
Producent:
ANALOG DEVICES
Dodany do bazy:
Ostatnio widziany:

The LTC3809 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.

For noise sensitive applications, the LTC3809 can be externally synchronized from 250kHz to 750kHz. Burst Mode is inhibited during synchronization or when the SYNC/MODE pin is pulled low to reduce noise and RF interference. To further reduce EMI, the LTC3809 incorporates a novel spread spectrum frequency modulation technique.

Burst Mode operation provides high efficiency operation at light loads. 100% duty cycle provides low dropout operation, extending operating time in battery-powered systems.

The switching frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors.

The LTC3809 is available in the 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

* 1- or 2-Cell Lithium-Ion Powered Devices

* Portable Instruments

* Distributed DC Power Systems

Elecena nie prowadzi sprzedaży elementów elektronicznych, ani w niej nie pośredniczy.

Produkt pochodzi z oferty sklepu