Switching Power Supply With Linear Regulators

The MC33997 is a medium-power, multi-output power supply integrated circuit that is capable of operating over a wide input voltage range, from 6.0 V up to 26.5 V with 40 V transient capability. It incorporates a sensorless current mode control Step-down switching controller regulating directly to 5.0 V. The 3.3 V linear Regulator uses an external pass Transistor to reduce the MC33997 power dissipation. The MC33997 also provides a 3.3 V linear standby Regulator and two 5.0 V Sensor supply outputs protected by internal low-resistance LDMOS transistors There are two separate enable pins for the main and Sensor supply outputs and standard supervisory functions such as resets with power-up reset delay. By Freescale Semiconductor, Inc
MC33997 's PackagesMC33997 's pdf datasheet



MC33997 Pinout, Pinouts
MC33997 pinout,Pin out
This is one package pinout of MC33997,If you need more pinouts please download MC33997's pdf datasheet.

MC33997 Application circuits
MC33997 circuits
This is one application circuit of MC33997,If you need more circuits,please download MC33997's pdf datasheet.


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