MAX637ACSA+T

The MAX637ACSA+T is a preset/adjustable output CMOS inverting switching regulator in 8 pin NSOIC package. This inverting switching regulator is designed for minimum component low power DC to DC conversion. The device is preset for -15V output or can also be adjusted to other voltages using two external resistors. Low battery detection circuitry is included on-chip. For low power applications, the device requires a diode, an output filter capacitor and a catch diode. For high power applications an additional MOSFET and driver is required. Typical applications include minimum component high efficiency DC to DC converter, portable instruments, battery power conversion, board level DC to DC conversion.

• Supply voltage range from 2.3V to 16.5V at TA = 25°C
• Operating temperature range from 0°C to 70°C
• Efficiency is 85%
• Supply current is 80µA at VS = 5V
• Reference voltage is 1.31V at TA = 25°C
• Output accuracy is 5%
• Only three external components
• Oscillator frequency is 50KHz, oscillator duty cycle is 50%
• Line regulation is 0.5%Vout, load regulation of 0.2%Vout
• DC-DC Converters; Portable Instruments; Battery Power Conversion; Board Level DC-DC Conversion

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party