Product Overview

Product Overview
NCV890204: Automotive Switching Regulator, Buck, 2.0 A, 2 MHz, Spread
Spectrum
For complete documentation, see the data sheet
Product Description
The NCV890204 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications
that must operate with up to a 36 V input supply. The regulator is suitable for systems with low noise and small form factor
requirements often encountered in automotive driver information systems. The NCV890204 is capable of converting the typical 4.5 V
to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band,
eliminating the need for costly filters and EMI countermeasures. A Reset pin signals when the output is in regulation, and a pin is
provided to adjust the delay before the RSTB signal goes high. The NCV890204 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 an all-ceramic output filter
capacitor - forming a space-efficient switching regulator solution.
Features
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Benefits
Adjustable Spread Spectrum
Internal N-Channel Power Switch
Low VIN Operation Down to 4.5 V
High VIN Operation to 36 V
Withstands Load Dump to 40 V
2 MHz Free-running Switching Frequency
Reset with Adjustable Delay
Logic level Enable Input Can be Directly Tied to Battery
2.2 A (min) Cycle-by-Cycle Peak Current Limit
Short Circuit Protection enhanced by Frequency Foldback
For more features, see the data sheet
• EMI Reduction
Applications
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End Products
Audio
Infotainment
Safety ? Vision Systems
Instrumentation
• Automotive
Part Electrical Specifications
Product
Compliance
Status
Topology
Control
Mode
VCC Min
(V)
VCC Max
(V)
VO Typ (V) IO Typ (A)
NCV890204MWR2G
AEC
Qualified
Active
StepDown
Current
Mode
4.5
40
Variable
PPAP
Capable
Pb-free
Halide free
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016
2
Efficiency
(%)
fSW Typ
(kHz)
Package
Type
2000
DFN-12