Design contains obsolete parts

NCP3170AGEVB: 3.3V @ 3A, 4.5 ~ 18V in, Buck

Summary

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.

Specifications

Manufacturer	onsemi
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	NCP3170AGEVBOS-ND
Eval Board Supplier	onsemi
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V
Current Out	3 A
Voltage In	4.5 ~ 18 V
Efficiency @ Conditions	>90%, 5V in, 3.3V @ 0.2 ~ 3 A >90%, 12V in, 5V @ 0.45 ~ 3 A >90%, 12V in, 3.3V @ 0.9 ~ 3 A >87%, 5V in, 1.8V @ 0.3 ~ 3 A >80%, 5V in, 1.2V @ 0.19 ~ 3 A >80%, 12V in, 1.8V @ 0.5 ~ 3 A >80%, 12V in, 1.2V @ 0.7 ~ 3 A
Voltage Out Range	0.8 ~ 5 V
Features	Current Limit (Adj. or Fixed) Light Load Mode PFM or PWM Power Good Output Pre-Biased Startup Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	500 kHz
Standby Current [Typical]	13 µA
Quiescent Current [Typical]	1.7 mA
Component Count + Extras	20 + 11
Internal Switch	Yes
Design Author	ONSemiconductor
Application / Target Market	DVD/Blu-ray Players LCD TV / Monitor Networking Point of Load (PoL) Set-Top Boxes Telecom
Standby Current [Maximum]	17 µA
Quiescent Current [Maximum]	2 mA
Main I.C. Base Part	NCP3170
Date Created By Author	2011-03
Date Added To Library	2016-05