NCV896530 Datasheet, PDF (1/9 Pages) ON Semiconductor – 2.1 MHz Low Voltage Dual Output Buck Converter

NCV896530
2.1 MHz Low Voltage Dual
Output Buck Converter
The NCV896530 dual step−down dc−dc converter is a monolithic
integrated circuit dedicated to automotive driver information systems
from a downstream voltage rail.
Both channels are externally adjustable from 0.9 V to 3.3 V and can
source totally up to 1600 mA. Converters are running at 2.1 MHz
switching frequency above the sensitive AM band and operate 180°
out of phase to reduce large amounts of current demand on the rail.
Synchronous rectification offers improved system efficiency.
The NCV896530 provides additional features expected in
automotive power systems such as integrated soft−start,
cycle−by−cycle 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 NCV896530 is available in a space saving, 3 x 3 mm 10−pin
DFN package.
Features
• Synchronous Rectification for Higher Efficiency
• 2.1 MHz Switching Frequency, 180° Out−of−Phase
• Sources up to 1600 mA Total and 1 A Per Channel
• 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
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• This is a Pb−Free Device
Typical Applications
• Audio
• Infotainment
• Vision System
• Instrumentation
ÏÎÎÏÎÎ _{OFF ON}
ÎÎ _2.1MHz
ÏÏÎÎÏÏÎÎ _{OFF ON}
4 VIN
7 _GND
2 EN1
3 SYNC
9 ^EN2
11
ÏÏ _{SW1 5}
ÏÏ_{FB1 1}
ÎÎ _{POR 8}
ÎÏÎÏ SW2 6
ÎÏÏÎÏÏ_{FB2 10}
2.2 mH
VOUT1
10 mF
2.2 mH
POR
VOUT2
10 mF
Figure 1. NCV896530 Typical Application
http://onsemi.com
MARKING DIAGRAM
DFN10
CASE 485C
NCV89
6530
ALYWG
G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Device
(*Note: Microdot may be in either location)
PIN CONNECTIONS
FB1 1
EN1 2
SYNC 3
VIN 4
SW1 5
10 ^FB2
9 EN2
8 POR
7 GND
6 SW2
(Top View)
ORDERING INFORMATION
Device
Package Shipping^†
NCV896530MWTXG DFN10 3000 / Tape &
(Pb−Free)
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.
© Semiconductor Components Industries, LLC, 2013
1
September, 2013 − Rev. 0
Publication Order Number:
NCV896530/D