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LTC1624CS8#PBF

DC/DC Controller, Current Mode, 3.5V to 36V, 1 Output, Boost, Buck, Inverting, SEPIC, 225kHz, SOIC-8

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Manufacturer:: LINEAR TECHNOLOGY LINEAR TECHNOLOGY
Manufacturer Part No:: LTC1624CS8#PBF
Order Code:: 1273889
Technical Datasheet:: LTC1624CS8#PBF Datasheet

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Product Overview

The LTC1624CS8#PBF is a high efficiency N-Channel switching Regulator Controller drives an external N-channel power MOSFET using fixed frequency architecture. It can be operated in all standard switching configurations including boost, step-down, inverting and SEPIC. Burst Mode® operation provides high efficiency at low load currents. A maximum high duty cycle limit of 95% provides low dropout operation which extends operating time in battery-operated systems. The operating frequency is internally set to 200kHz, allowing small inductor values and minimizing PC board space. The operating current level is user-programmable via an external current sense resistor. Wide input supply range allows operation from 3.5 to 36V (absolute maximum). A multifunction pin (ITH/RUN) allows external compensation for optimum load step response plus shutdown. Soft start can also be implemented with the ITH/RUN pin to properly sequence supplies.

N-channel MOSFET drive
Implements boost, step-down, SEPIC and inverting regulators
Wide VOUT range (1.19 to 30V in step-down configuration)
±1% 1.19V Reference
Low dropout operation (95% duty cycle)
200kHz Fixed frequency
Low standby current
Very high efficiency
Remote output voltage sense
Logic-controlled micro power shutdown

Internal diode for bootstrapped gate drive
Current mode operation for excellent line and load transient response

Applications

Computers & Computer Peripherals, Communications & Networking, Wireless, Power Management

Product Information

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Supply Voltage Min:: 3.5V
Supply Voltage Max:: 36V
No. of Outputs:: 1 Output
Duty Cycle (%):: 95%
Controller IC Case Style:: SOIC
No. of Pins:: 8Pins
Switching Frequency:: 225kHz
Topology:: Boost, Buck, Inverting, SEPIC
Operating Temperature Min:: 0°C
Operating Temperature Max:: 70°C
Product Range:: -
Automotive Qualification Standard:: -
MSL:: MSL 1 - Unlimited

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Technical Docs (3)

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