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NCP3020B Datasheet(PDF) 1 Page - ON Semiconductor

Part # NCP3020B
Description  Synchronous PWM Controller
Download  23 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP3020B Datasheet(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2009
November, 2009 − Rev. P1
1
Publication Order Number:
NCP3020/D
NCP3020A, NCP3020B
Product Preview
Synchronous PWM Controller
The NCP3020 is a PWM device designed to operate from a wide
input range and is capable of producing an output voltage as low as
0.6 V. The NCP3020A provides integrated gate drivers and an
internally set 300 kHz oscillator (600 kHz for the NCP3020B). The
NCP3020 has an externally compensated transconductance error
amplifier with an internally fixed soft−start. Protection features
include lossless current limit and Short Circuit Protection, Output
Overvoltage protection, Output Undervoltage protection, and Input
Undervoltage Lockout. The NCP3020 is currently available in a
SOIC−8 package.
Features
Input Voltage Range from 4.5 V to 28 V
Switching and Synchronous Rectifier Drives with >1.0 A Capability
300 kHz Operation (NCP3020B – 600 kHz)
0.6 ± 1.0% Reference Voltage
Internally Programmed 6.8 ms Soft−Start (NCP3020B – 3.4 ms)
Current Limit and Short Circuit Protection
Transconductance Amplifier with External Compensation
Input Undervoltage Lockout
Output Overvoltage and UndervoltageDetection
This is a Pb−Free Device
Figure 1. Typical Application Circuit
4.5−28 V
COMP
FB
VCC BST
HSDR
VSW
LSDR
GND
Q1
Q2
Vout
CC1
CC2
CIN
RISET
RC
CBST
RFB1
RFB2
C0
L0
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
http://onsemi.com
Device
Package
Shipping
ORDERING INFORMATION
NCP3020ADR2G
SOIC−8
(Pb−Free)
2500 / 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.
SOIC−8 NB
CASE 751
MARKING DIAGRAM
XXXXX
ALYW
G
1
8
XXXXX = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
1
8
PIN CONNECTIONS
LSDR
GND
VSW
FB
HSDR
COMP
BST
VCC
NCP3020BDR2G
SOIC−8
(Pb−Free)
2500 / Tape & Reel


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