Product Overview

Product Overview
NCV890201: Automotive Switching Regulator, Buck, 2 A, 2 MHz
For complete documentation, see the data sheet
Product Description
The NCV890201 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications
that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor
requirements often encountered in automotive driver information systems. The NCV890201 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.
Two pins are provided to synchronize switching to a clock, or to another NCV890201. The NCV890201 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
2 MHz Free-running Switching Frequency
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
Auto-synchronizes with Other NCV890201 or to an External
Clock
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
±1.75% Output Voltage Tolerance
For more features, see the data sheet
• Enables the use of small, low-cost inductor and EMC filter
Applications
End Products
• Audio
• Infotainment
• Automotive
Part Electrical Specifications
Product
Compliance
Status
Topology
Control
Mode
VCC Min
(V)
VCC Max
(V)
VO Typ (V) IO Typ (A)
NCV890201MWTXG
AEC
Qualified
Active
StepDown
Current
Mode
4.5
40
Adjustable
PPAP
Capable
Pb-free
2
Efficiency
(%)
fSW Typ
(kHz)
Package
Type
2250
DFN-10
Application Diagram
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016