LTC1624 - High Efficiency SO-8 N-Channel Switching Regulator Controller

LTC1624 - High Efficiency SO-8 N-Channel Switching Regulator Controller - Linear Technology（凌力尔特）

The LTC®1624 is a current mode switching regulator controller that drives an external N-channel power MOSFET using a 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 3.5V 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 VIN Range: 3.5V to 36V Operation

Wide VOUT Range: 1.19V 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 Micropower Shutdown

Internal Diode for Bootstrapped Gate Drive

Current Mode Operation for Excellent Line and Load Transient Response

Available in an 8-Lead SO Package

Notebook and Palmtop Computers, PDAs

Cellular Telephones and Wireless Modems

Battery-Operated Digital Devices

DC Power Distribution Systems

Battery Chargers

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1624CS8	SO-8	C	$4.30	$3.50
LTC1624CS8#PBF	SO-8	C	$4.30	$3.50
LTC1624CS8#TR	SO-8	C		$3.56
LTC1624CS8#TRPBF	SO-8	C		$3.56
LTC1624IS8	SO-8	I	$5.50	$4.45
LTC1624IS8#PBF	SO-8	I	$5.50	$4.45
LTC1624IS8#TR	SO-8	I		$4.51
LTC1624IS8#TRPBF	SO-8	I		$4.51

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