MAX1734EUK18+TG104

Voltage Regulators - DC DC Switching Regulators Overview

The MAX1734EUK18+TG104 is a low-voltage step-down DC-DC converter manufactured by Maxim Integrated, now part of Analog Devices. It delivers a guaranteed output current of 250mA with a fixed 1.8V output voltage. The device operates within an input voltage range of 2.7V to 5.5V and features a maximum switching frequency of 1.2MHz. It utilizes internal synchronous rectification to achieve over 90% efficiency and includes digital soft-start functionality. The component is housed in a space-saving 5-pin SOT23 package and supports an operating temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Internal synchronous rectification eliminates the need for external Schottky diodes while improving overall conversion efficiency.
• Proprietary current-limited control scheme ensures stable operation and high efficiency across varying load conditions.
• Digital soft-start capability limits input inrush current during startup, reducing stress on upstream power sources.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring efficient power management
• Space-constrained embedded systems
• Battery-powered devices needing extended runtime

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TG104 against official manufacturer documentation to confirm tape-and-reel packaging specifications and exact factory preset voltage tolerances. Confirm lifecycle status as obsolete or active through authorized channels before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.8V output is required without external resistor programming. It serves as a high-efficiency alternative to linear regulators in applications where thermal dissipation is limited. Ensure input voltage remains within the 2.7V to 5.5V window for proper regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX1733/MAX1734 family of low-voltage step-down converters. While the MAX1733 offers adjustable output voltages, the MAX1734 provides factory-preset options. Both share identical control architectures and physical footprints, differing primarily in output voltage configuration and internal feedback network settings.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other MAX1734 variants with different fixed output voltages if system requirements change. Verify pin compatibility and thermal performance when considering cross-brand alternatives from manufacturers offering similar SOT23-5 buck converters.