Description
LINEAR Technology LTC1624CS8 IC SW REG CONTROLLER N-CH 8-SOICLTC1624 – High Efficiency SO-8 N-Channel Switching Regulator Controller
Features
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
The LTC1624CS8 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
Manufacturer Part Number: LTC1624CS8
Manufacturer: Linear Technology
