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Overview
| Topology | Buck Converter |
| Input voltage | 5-18 V |
| Switching frequency | 450-550 kHz |
| Output 1 | 3.3 V / 3 A |
| IC revision | 5 |
Description
The NCP3170 is a flexible synchronous PWM Switching Buck Regulator. The NCP3170 operates from 4.5 V to 18 V, sourcing 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.
Features
- 4.5 V to 18 V Operating Input Voltage Range
- 90 m High-Side, 25 m Low-Side Switch
- FMEA Fault Tolerant During Pin Short Test
- 3 A Continuous Output Current
- Fixed 500 kHz and 1 MHz PWM Operation
- Cycle-by-Cycle Current Monitoring
- 1.5% Initial Output Accuracy
- Internal 4.6 ms Soft-Start
- Short-Circuit Protection
- Turn on Into Pre-bias
- Power Good Indication
- Light Load Efficiency
- Thermal Shutdown
- These are Pb-Free Devices
Typical applications
- DVD/Blu−ray Drives and HDD
- Set Top Boxes
- LCD Monitors and TVs
- Point of Load DC/DC Converters
- PCIe Graphics Cards
- Cable Modems
- Telecom/Networking/Datacom Equipment
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PDF SMT Power Inductor, 4.7 µH, 9.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance4.7 µH | Rated Current9.5 A | Saturation Current7.6 A | DC Resistance8.4 mΩ | Self Resonant Frequency44 MHz | MountSMT |