MAX828-MAX829: Switched-Capacitor Voltage Inverters Data Sheet (Rev. 3)5/3/2000174K
Features and Benefits
- 5-Pin SOT23-5 Package
- 95% Voltage Conversion Efficiency
- Inverts Input Supply Voltage
- 60µA Quiescent Current (MAX828)
- +1.5V to +5.5V Input Voltage Range
- Requires Only Two Capacitors
- 25mA Output Current
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. 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 board-level 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 analog circuitry. Both parts come in a 5-pin SOT23-5 package and can deliver 25mA with a voltage drop of 500mV.
For a similar device with logic-controlled shutdown, refer to the MAX1719/MAX1720/MAX1721. For applications requiring more power, the MAX860 delivers up to 50mA with a voltage drop of 600mV, in a space-saving µMAX® package.
- Battery-Powered Applications
- Cell Phones
- Handy-Terminals, PDAs
- Medical Instruments
- Small LCD Panels
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX828 Reliability Data1/12/202325K
MAX828 Companion Parts
Recommended Related Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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