Power Supply with Multiple Linear Regulators

MC33730

The NXP® MC33730 is a multiple output power supply integrated circuit that incorporates a switching regulator with an adjustable frequency oscillator for automotive applications.

  • The integrated circuit incorporates a switching regulator which operates over a wide input voltage range from +4.5 V to +26.5 V
  • The step-down switching regulator uses a fixed frequency PWM voltage mode control
  • It has a 3.5 A current limit (typical) and the slew-rate is adjustable via a control pin to reduce switching noise
  • The switching regulator has an adjustable frequency oscillator, which allows the user to optimize its operation over a wide range of input voltages and component values

See product image

Product Details

Select a section:

Block Diagram

Freescale MC33730 Power Actuation Block Diagram

NXP<sup>&#174;</sup> MC33730 Power Actuation Block Diagram
Get diagram PDF

Features

Key Features

  • Provides all regulated voltages for Our 32-bit and other microcontroller families and their logic and analog functions
  • Adjustable frequency switching buck regulator with slew-rate control
  • Power sequencing provided
  • Programmable voltages VDDL, VDD3 - 3% accuracy
  • Programmable standby regulator VKAM - 15% accuracy, operating down to 4.5 V at KA_VBAT pin
  • VDD3 can be programmed as an optional second standby regulator with 15% accuracy
  • Provides two 5.0 V protected supplies for sensors
  • Provides reverse battery protection FET gate drive
  • Provides necessary MCU monitoring and fail-safe support

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC33730 is included in the 15-year program

Key Parametrics

  • Num. of Linear/LDO Regulators
    5
  • Number of Buck Regulators
    1
  • Number of Boost Regulators
    0
  • Supply Voltage [Min to Max] (V)
    4.5 to 26.5
  • Output Voltage (V)
    5
  • Output Current (A)
    0.15

Documentation

Quick reference to our documentation types.

Filters

1-5 of 6 documents

Show All

Design Resources

Select a section:

Hardware

Filters

1-5 of 9 hardware offerings

Show All

Engineering Services

3 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.

Support

What do you need help with?

Search