NCP3121 - Step-Down DC/DC Switching Regulator

Product Overview

ON Semiconductor

Datasheet Details

Part number	NCP3121
Manufacturer	ON Semiconductor
File Size	2.37 MB
Description	Step-Down DC/DC Switching Regulator
Datasheet	NCP3121 Datasheet
Additional preview pages of the NCP3121 datasheet.

Product details

Description

Pin Symbol 1, 31, 32 SW1 2 7 VIN 8 10 11 12 SW2 GND2 SS2 13 COMP2 14 AGND 15 FB2 16 RT 17 TRACK 2 18 TRACK 1 19 SEQ2 20 EN2 21 SEQ1 22 EN1 23 PG2 24 PG1 25 AVIN 26 FB1 27 AGND 28 COMP1 29 SS1 30 GND1 Exposed Pad (GND) Description Switch node of Channel 1. Connect an inductor between SW1 and the regulator output.Input power supply voltage pins.These pins should be connected together to the input signal supply voltage pin.Switch node of Channel 2. Connect an

Features

include cycle.
by.
cycle current limit and undervoltage lockout (UVLO). The NCP3121 comes in a 32.
pin QFN package. Features.
Input Voltage Range from 4.5 V to 13.2 V.
12 Vin to 5.0 Vout = 85% Efficiency Min @ 3.0 A.
200.
750 kHz Operation.
Stable with Low ESR Ceramic Output Capacitor.
0.8 ±1.5% FB Reference Voltage.
External Soft.
Start.
Out of Phase Operation of OUT1 & OUT2.
Auto.

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Published: Aug 26, 2010 |