The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V.
The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz.
Key Features
o 5-Pin SOT23-5 Package o 95% Voltage Conversion Efficiency o Inverts Input Supply Voltage o 60µA Quiescent Current (MAX828) o +1.5V to +5.5V Input Voltage Range o Requires Only Two Capacitors o 25mA Output Current
MAX828/MAX829
______________Ordering Information
PART MAX828C/D MAX828EUK MAX829C/D MAX829EUK TEMP. RANGE 0°C to +70°C -40°C to +85°C 0°C to +70°C -40°C to +85°C.
Full PDF Text Transcription for MAX828 (Reference)
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MAX828. For precise diagrams, and layout, please refer to the original PDF.
19-0495; Rev 2; 4/97 Switched-Capacitor Voltage Inverters _______________General Description The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept i...
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ra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz. Their high efficiency (greater than 90% over most of the load-current range) and low operating current (60µA for the MAX828) make these devices ideal for both battery-powered and boardlevel voltage-conversion applications. The MAX828/MAX829 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power a
MAX828 Datasheet
