MAX829 Series

50 mA, 1.15-5.5 V Switched Capacitor Voltage Converter

Catalog

50 mA, 1.15-5.5 V Switched Capacitor Voltage Converter

Part	Supplier Device Package	Output Type	Synchronous Rectifier	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching	Output Configuration	Function	Mounting Type	Current - Output	Package / Case	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Min/Fixed) [Max]	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]
ON Semiconductor MAX828EUK	5-TSOP	1.81 mOhm		1	85 °C	-40 °C	12 kHz	Negative	Ratiometric	Surface Mount	25 mA	SOT-23-5 Thin TSOT-23-5	-Vin	2Vin	1.5 V	5.5 V
ON Semiconductor MAX829EUKG	5-TSOP	1.81 mOhm		1	85 °C	-40 °C	35 kHz	Positive or Negative	Ratiometric	Surface Mount	25 mA	SOT-23-5 Thin TSOT-23-5	-Vin	2Vin	1.5 V	5.5 V

Catalog

50 mA, 1.15-5.5 V Switched Capacitor Voltage Converter

Key Features

• Charge Pump in Thin SOT23-5 Lead Package

• >95% Voltage Conversion Efficiency

• Voltage Inversion and/or Doubling

• Low 50mA (MAX828) Quiescent Current

• Operates from +1.5V to +5.5V

• Up to 25 mA Output Current

• Only Two External Capacitors Required

• Tested Operating Temperature Range: -40°C to +85°C

• Pb-Free Packages are Available

Description

The MAX828 and MAX829 are CMOS charge-pump voltage converters in ultra-small SOT-23 5 lead packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency is 12kHz for the MAX828 and 35kHz for the MAX829.External component requirement is only two capacitors (3.3μF nominal) for standard voltage inverter applications. With a few additional components a positive doubler can also be built. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Supply current is 50 μA (MAX828) and 115 μA (MAX829).The MAX828 and MAX829 are available in a SOT-23 5 lead surface mount package.