Step-Down Regulator, Dual-Mode, 2 MHz Low-IQ

Favorite

Overview

The NCV891x34 is a Dual Mode regulator intended for Automotive, battery−connected applications that must operate with up to a 45 V input supply. Hybrid Low Power Mode allows the NCV891x34 to operate either as a PWM Buck Converter or as a Low Drop−Out LinearRegulator, and the NCV891x34 is suitable for systems with Low Noise and Low Quiescent Current requirements often encountered inautomotive driver information systems. A reset (with fixed delay) and a fault pin (flagging low input voltage and high temperature warnings) simplify interfacing with a microcontroller.

Two pins are provided to synchronize switching to a clock, or to another NCV891x34. The NCV891x34 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.

  • Safety Vision Systems
  • Audio, Infotainment
  • Instrumentation
  • Telematics
  • Automotive
  • 40 µA Iq in Light Load Condition
  • 3.0 A Maximum Output Current in PWM Mode in NCV891334
  • 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 or 3.3 V with ±2% Accuracy
  • 2 MHz Free−running Switching Frequency
  • Input and Output Synchronization Pins
  • NCV Prefix for Automotive Requiring Site and Control Changes
  • Wettable Flanks DFN (pin edge plating)
  • These Devices are Pb−Free and are RoHS Compliant

Search

Close Search

Products:

1

Expand Table

Collapse Table

Share

Export

Compare

Columns

0

Product Groups:

Orderable Parts:

1

Product

Status

ECAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Topology

Control Mode

VCC Min (V)

VCC Max (V)

VO Typ (V)

IO Typ (A)

Efficiency (%)

fSW Typ (kHz)

Pricing ($/Unit)

Loading...

NCV891334MW33R2G

Lifetime

Pb

A

H

P

DFN-12

1

260

REEL

3000

N

Step-Down

Current Mode

3.7

45

3.3

3

85

2000

$2.4999

More Details

Show More

1-25 of 25

Products per page

Jump to :