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MC33468 Datasheet VARIABLE FREQUENCY MICROPOWER DC-to-DC CONVERTER

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

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General Description

Ground Input External Transistor Drive No Connection VOUT Voltage Output Pin (Fixed at 2V) PIN DESCRIPTION PIN CONNECTIONS Ground Vdd EXT 1 2 3 (Top View) 4 N/C 5 VOUT Representative Block Diagram 2 VDD 3 EXT Oscillator Drive 5 VOUT Vref 1 Gnd MOTOROLA ANALOG IC DEVICE DATA 1 MC33468 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ Á

Overview

www.DataSheet4U.com Order this document by MC33468/D MC33468 Variable Frequency Micropower Step-up DC-DC Converter The MC33468 is a micropower step–up switching voltage regulator, specifically designed for handheld and pager applications, to provide a regulated output voltage using a minimum of external parts.

Key Features

  • a quiescent bias current of 3.0 µA typical. The MC33468 features a highly accurate voltage reference, an error amplifier, an oscillator, a variable frequency modulation (VFM) controller, a drive pin (EXT) for an external transistor, and feedback resistors. The Vout pin is fixed at 2V in the IC. The output of the converter with an inductor, a diode, a capacitor, a drive transistor, and feed.
  • back resistors can have an output of 30V.

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