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NCV890103

ON Semiconductor
Part Number NCV890103
Manufacturer ON Semiconductor
Description Automotive Buck Switching Regulator
Published Aug 16, 2015
Detailed Description NCV890103 Switching Regulator Automotive Buck, RESET 1.2 A, 2 MHz The NCV890103 is a fixed−frequency, monolithic, Buc...
Datasheet PDF File NCV890103 PDF File

NCV890103
NCV890103


Overview
NCV890103 Switching Regulator Automotive Buck, RESET 1.
2 A, 2 MHz The NCV890103 is a fixed−frequency, monolithic, Buck switching regulator intended for Automotive, battery−connected applications www.
onsemi.
com that must operate with up to a 36 V input supply.
The regulator is suitable for systems with low noise and small form factor MARKING DIAGRAM requirements often encountered in automotive driver information systems.
The NCV890103 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.
DFN10 CASE 485C V8901 03 ALYWG G A Reset pin signals when the output is in regulation, and a pin is A = Assembly Location provided to adjust the delay before the RSTB signal goes high.
The NCV890103 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 L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device (Note: Microdot may be in either location) inductor values and an all−ceramic output filter capacitor − forming a space−efficient switching regulator solution.
Features ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 18 of this data sheet.
• 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 • Low Shutdown Current • Logic level Enable Input Can be Directly Tied to • Wettable Flanks DFN (pin edge plating) Battery • Reset with Adjustable Delay • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change • 1.
4 A (min) Cycle−by−Cycle Peak Current Limit • Short Circuit P...


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