NCV890430_16 Datasheet, PDF (1/10 Pages) ON Semiconductor – Duty Cycle Step‐Down Synchronous Regulator for Automotive

NCV890430
0.6 A 2 MHz 100% Duty Cycle
Step‐Down Synchronous
Regulator for Automotive
The NCV890430 is a fixed-frequency Synchronous Buck regulator
intended for Automotive, battery-connected applications that operate
with up to a 45 V input supply. It is suitable for automotive systems
requiring low noise and low shutdown currents that also need to
operate at low input voltage close to the output voltage. A reset pin
(with adjustable delay) simplifies interfacing with a microcontroller.
This part also features an enable input that can either be connected to a
low voltage (such as a micro-controller output) or high voltage (such
as the battery input), and a synchronization input.
The NCV890430 also provides several protection features expected
in automotive power supply systems such as current limit, short circuit
protection, and thermal shutdown. In addition, the high switching
frequency produces low output voltage ripple even when using small
inductor values and all-ceramic input output filter capacitors −
forming a space-efficient switching regulator solution.
www.onsemi.com
1
DFN8, 3x3, 0.65P
CASE 506CS
PIN CONNECTIONS
VIN
1
8
SW
RSTB
2
7
PGND
Features
• Internal 550 mW P-channel and 300 mW N-channel Power Switches
• Capable of 100% Duty Cycle Operation
• V_IN Operating Range 3.5 V to 37 V
• Withstands Load Dump to 45 V
• 2 MHz Free-running Switching Frequency
• Low Shutdown Current < 10 mA
• High Voltage Enable Pin
• Synchronization Input Pin
• Maximum DC Output Current of at Least 0.6 A
• Fixed Output Voltage (5 V, 3.3 V, 2.5 V Versions)
• ±2% Output Voltage Accuracy
• DFN Package with Wettable Flanks
(Pin Edge Plating per JEDEC MO220)
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These are Pb−Free Devices
GND
3
6
SYNC
EN
4
5
VOUT
(DFN8 Top View)
MARKING DIAGRAM
1
V8904
30−xx
ALYWG
G
V890430−xx = Specific Device Code
xx
= 25, 33 or 50
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
Typical Applications
• Automotive Infotainment and Instrumentation
• Automotive Body Applications
• Linear Regulator Replacement
• Rear View Camera
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2016
1
June, 2016 − Rev. 0
Publication Order Number:
NCV890430/D