© Semiconductor Components Industries, LLC, 2018

June, 2019 − Rev. 1

1

Publication Order Number:

NCV30161/D

NCV30161

Constant-Current Buck

Regulator for Driving High

Power LEDs

The NCV30161 is a hysteretic step−down, constant−current driver

for high power LEDs. Ideal for industrial and automotive applications

utilizing minimal external components. The NCV30161 operates with

an input voltage range from 6.3 V to 40 V. The hysteretic control gives

good power supply rejection and fast response during load transients

and PWM dimming to LED arrays of varying number and type. A

dedicated PWM input (DIM/EN) enables a wide range of pulsed

dimming, and a high switching frequency allows the use of smaller

external components minimizing space and cost. Protection features

include resistor−programmed constant LED current, shorted LED

protection, under−voltage and thermal shutdown. The NCV30161 is

available in a DFN10 3 mm x 3 mm package with wettable flanks.

Features

Typical Applications

D1

NCV30161

VIN

VIN

VCC

CS

GATE

GND

ROT

LED

LED

L1

DIM/Enable

Figure 1. Typical Application Circuit

www.onsemi.com

Device

Package

ORDERING INFORMATION

NCV30161MNWTXG DFNW10

(Pb−Free)

3000 / Tape &

Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

DFNW10

CASE 507AE

MARKING DIAGRAM

PIN CONNECTIONS

CS

NC

GND

VCC

GATE

VIN

ROT

DIM/EN

NCV30161 = Specific Device Code

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

NCV

30161

ALYW

G

NC

NC

1

2

3

4

5

10

9

8

7

6

(Top View)