MAX850ESA-T

Overview

The MAX850ESA-T is a negative charge pump DC-DC converter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within an input voltage range of 4.5 V to 10 V and provides an adjustable output voltage ranging from -1.28 V to -9 V. The device delivers a maximum output current of 5 mA at a switching frequency of 100 kHz. It is housed in an 8-SOIC surface-mount package and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Generates negative voltage using a charge pump topology
• Provides adjustable output voltage capability
• Supports single-supply operation from 4.5 V to 10 V

Applications

• RS-232 transceiver bias generation
• Op-amp dual supply creation
• Negative rail requirement for analog circuits

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official documentation, as standard variants may differ. Ensure the specific part number matches the required output configuration and thermal specifications for your application environment.

Selection Notes

Select this component when a compact solution for generating a stable negative voltage is required from a positive supply. Consider the 5 mA output limit and 100 kHz switching frequency against system noise and load requirements. The SOIC-8 package offers a balance of thermal performance and board space efficiency.

Part Context

This part belongs to the Maxim Integrated line of power management ICs, specifically focusing on DC-DC converters. The MAX850 series is designed for applications requiring simple, low-component-count solutions for creating negative rails from standard positive logic supplies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.