MC33730: Power Supply with Multiple Linear Regulators

Overview

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 +4.5V to +26.5V
The step-down switching regulator uses a fixed frequency PWM voltage mode control
It has a 3.5A 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

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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 4.5V at KA_VBAT pin
VDD3 can be programmed as an optional second standby regulator with 15% accuracy
Provides two 5.0V protected supplies for sensors
Provides reverse battery protection FET gate drive
Provides necessary MCU monitoring and fail-safe support

MoreLess

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 4.5V at KA_VBAT pin
VDD3 can be programmed as an optional second standby regulator with 15% accuracy
Provides two 5.0V protected supplies for sensors
Provides reverse battery protection FET gate drive
Provides necessary MCU monitoring and fail-safe support