Converters | NCP1547
概览
The NCP1547 is a 1.5 A buck regulator IC operating at a fixed frequency of 340 kHz. The device employs the V2™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation. The NCV8842 accommodates input voltages from 4.0 V to 40 V and contains synchronization circuitry. The on-chip NPN transistor is capable of providing a minimum of 1.5 A of output current and is biased by an external boost capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback short-circuit protection.
- Industrial Control
- Point-of-Load Voltage Regulation
- Consumer Audio and video
- Computer and Computer Peripheral
- Automotive Version Available As NCV8843
- Dc-dc power supplies
- V2™ Control Architecture
- 2.0% Error Amp Reference Voltage Tolerance
- Cycle-by-Cycle Current Limiting
- Switch Frequency Decrease of 4:1 in Short Circuit
- Bootstrapped Operation (BOOST)
- Synchronization to External Clock (SYNC)
- 1.0 A Shutdown Quiescent Current
- Thermal Shutdown
- Soft-Start
- Pb-Free Packages are Available
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