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NCV891130

ON Semiconductor
Part Number NCV891130
Manufacturer ON Semiconductor
Published Aug 16, 2015
Description Step-Down Regulator
Detailed Description NCV891130 Step-Down Regulator Automotive, Low-Iq, Dual-Mode 1.2 A, 2 MHz The NCV891130 is a Dual Mode regulator intende...
Datasheet PDF File NCV891130 PDF File

NCV891130
NCV891130


Overview
NCV891130 Step-Down Regulator Automotive, Low-Iq, Dual-Mode 1.
2 A, 2 MHz The NCV891130 is a Dual Mode regulator intended for Automotive, battery−connected applications that must operate with up to a 45 V input supply.
Depending on the output load, it operates either as a PWM Buck Converter or as a Low Drop−Out Linear Regulator, and is suitable for systems with low noise and Low Quiescent Current requirements often encountered in automotive driver information systems.
A reset pin (with fixed delay) simplifies interfacing with a microcontroller.
The NCV891130 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 • 30 mA Iq in Light Load Condition • 1.
2 A Maximum Output Current in PWM Mode • Internal N−channel Power Switch • VIN Operating Range 3.
7 V to 36 V • Withstands Load Dump to 45 V • Logic Level Enable Pin can be Tied to Battery • Fixed Output Voltage of 5.
0 V, 4.
0 V or 3.
3 V • 2 MHz Free−running Switching Frequency • ±2 % Output Voltage Accuracy • NCV Prefix for Automotive Requiring Site and Control Changes • These Devices are Pb−Free and are RoHS Compliant Typical Applications • Audio • Infotainment • Instrumentation • Safety−Vision Systems VIN CIN RESET CDRV NCV891130 VIN DRV SW CBST BST RSTB VOUT GND EN DBST L1 DFW EN VOUT COUT Figure 1.
Typical Application www.
onsemi.
com 8 1 SOIC−8 EXPOSED PAD CASE 751AC MARKING DIAGRAM 8 891130XX ALYW G 1 With XX = 33 for 3.
3 V Output = 40 for 4.
0 V Output = 50 for 5.
0 V Output A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device PIN CONNECTIONS VIN 1 8 SW DRV 2 7 BST RSTB 3 6 VOUT GND 4 (Top View) 5 EN ORDERING INFORMATION See detailed o...


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