MC33468

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. This device 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. VARIABLE FREQUENCY MICROPOWER DC–to–DC CONVERTER SEMICONDUCTOR TECHNICAL DATA MC33468 Features: Low Quiescent Bias Current of 3.0 µA High Output Voltage Accuracy of ±2.5% Low Startup Voltage of 0.8 V at No Load Output Voltage Set With External Resistors Operating Temperature Range: –40°C to +85°C Surface Mount Package N SUFFIX PLASTIC PACKAGE CASE 1212 (SOT–23–5) Quantity 3000 1 5 ORDERING INFORMATION Device MC33468SN–20ATR * “XX” denotes the lot number. Output Voltage 2.0 Marking 0KXX* Reel Size 7” Tape Width 8 mm ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 1 2 3 4 5 Symbol GND VD...