MAX634CSA

Voltage Regulators - DC DC Switching Regulators Overview

The MAX634CSA+ is a negative-output boost/buck switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of 2.6V to 16.5V and provides an adjustable negative output voltage from -2.6V to -20V. The device delivers up to 150mA of output current with a switching frequency ranging from 100Hz to 75kHz. It is housed in an 8-SOIC package (0.154" width) and functions within a temperature range of 0°C to 70°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports both boost and buck topologies for flexible negative voltage generation
• Features adjustable output voltage capability across a wide negative range
• Operates with low input voltage starting at 2.6V

Voltage Regulators - DC DC Switching Regulators Applications

• Negative power supply generation for analog circuits
• Interface biasing requiring negative rails
• Portable equipment with single-supply constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component status as the MAX634CSA+ is listed as discontinued or having limited supply availability. Confirm end-of-life notices and check for valid replacement part numbers before procurement planning. Ensure compatibility with existing design specifications if substituting.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a negative output voltage is required from a positive input source using a compact surface-mount solution. Consider the 150mA current limit and 75kHz maximum switching frequency against system power and noise requirements. Verify that the 8-SOIC package fits the PCB layout constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX634 series of CMOS micro-power inverting switching regulators. It is designed for applications needing efficient negative voltage conversion from standard positive supply rails, utilizing a compact 8-pin SOIC footprint suitable for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for official substitute part numbers from Analog Devices/Maxim Integrated due to discontinuation status. Evaluate pin-compatible alternatives within the same family or newer generations that maintain similar electrical characteristics and package dimensions.