NCP3170 - 3 A Synchronous PWM Switching Regulator
The NCP3170 from On Semiconductor is a flexible synchronous PWM Switching Buck regulator. The NCP3170 operates from 4.5...18 V, producing up to 3 A and is capable of producing output voltages as low as 0.8 V.
The NCP3170 also incorporates current mode control. To reduce the number of external components, a number of features are internally set including soft start, power good detection, and switching frequency. The NCP3170 is currently available in an SOIC-8 package.
NCP3170 Features
- 4.5...18 V operating input voltage range
- 90 mΩ high-side, 24 mΩ low-side MOSFET
- Output voltage adjustable to 0.8 V
- 3 A continuous output current
- Fixed 500 kHz and 1 MHz PWM operation
- 1.5% initial output accuracy
- Internal 4 ms soft start
- Short circuit protection
- Thermal shutdown
- Light load efficiency
- Dedicated PowerGood and ENABLE pin
NCP3170 Benefits
- Wide input voltage range
- Very high efficiency at low output voltages
- Ability to regulate low output voltages
- High current output
- Scale for efficiency or physical size
- Easy to design accurate system regulation
- Reduced external components
- Protection feature
- Enhanced efficiency at lower output current
- Built-in power sequencing capability
NCP3170 Applications
- Point of Load (POL) DC/DC regulator
- Set-Top-Box (STB)
