NCV894530 Datasheet, PDF (1/8 Pages) ON Semiconductor – High Efficiency Low Voltage Step-Down Converter

NCV894530
1.2 A - 2.1 MHz High
Efficiency Low Voltage
Step-Down Converter
The NCV894530 step−down dc−dc converter is a monolithic
integrated circuit dedicated to automotive driver information systems
from a downstream voltage rail. The output voltage is externally
adjustable from 0.9 V to 3.3 V and can source up to 1.2 A. The
converter is running at a 2.1 MHz switching frequency, above the
sensitive AM band. The NCV894530 provides additional features
expected in automotive power systems such as integrated soft−start,
hiccup mode current limit and thermal shutdown protection. The
device can also be synchronized to an external clock signal in the
range of 2.1 MHz. The NCV894530 is available in the same 3x3 mm
10−pin DFN package as the dual NCV896530, with compatible
pin−out.
Features
• Synchronous Rectification for Higher Efficiency
• 2.1 MHz Switching Frequency
• Sources up to 1.2 A
• Adjustable Output Voltage from 0.9 V to 3.3 V
• 2.7 V to 5.5 V Input Voltage Range
• Thermal Limit and Short Circuit Protection
• Auto Synchronizes with an External Clock
• Wettable Flanks − DFN
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Audio
• Infotainment
• Safety − Vision System
• Instrumentation
www.onsemi.com
DFN10
CASE 485C
MARKING
DIAGRAM
NCV89
4530
. ^{. ALYW}
NCV89
4530 = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
FB 1
EN 2
SYNC 3
VIN 4
SW 5
10 ^GND
9 NC
8 POR
7 ^GND
6 ^NC
(Top View)
ORDERING INFORMATION
Device
Package
Shipping^†
NCV894530MWTXG DFN10 3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2015
1
September, 2015 − Rev. 2
Publication Order Number:
NCV894530/D