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

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