MAX6329TPUT-T

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MAX6329TPUT-T is a low-dropout linear regulator with an integrated microprocessor reset circuit, manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of +2.5V to +5.5V and delivers up to 150mA load current. The device features a fixed +3.3V output with ±3.0% accuracy over the specified operating temperature range of 0°C to +85°C. Quiescent supply current is 25µA, reducing to below 1µA in shutdown mode via the SHDN pin. Dropout voltage is typically 180mV at 100mA load. The integrated reset circuit provides a minimum 100ms timeout period.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated microprocessor reset circuit with adjustable thresholds for -5% or -10% supply tolerance monitoring
• Ultra-low quiescent current consumption of 25µA independent of load current
• Low dropout voltage performance utilizing internal P-channel MOSFET pass transistors
• Includes shutdown control input to minimize power consumption during standby modes

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Hand-Held Instruments
• Electronic Planners
• Palm Top Computers
• PCMCIA Cards
• USB Devices

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix letters in the part number against the manufacturer's selector guide to confirm exact output voltage, reset threshold, and output stage configuration. Ensure compatibility with the required PCB footprint for the 6-pin SOT-23 package. Confirm that the application design accounts for the thermal dissipation requirements associated with the selected load current and input-output differential.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a combined LDO regulator and supervisor solution is required to save board space. The MAX6329 variant includes a shutdown pin suitable for battery-powered applications requiring deep sleep currents. Verify that the required reset timeout meets the system's stabilization needs, as the device guarantees a minimum 100ms delay after the output exceeds the threshold.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the MAX6329/MAX6349 family of micropower linear regulators. The MAX6329 series specifically integrates a shutdown feature, whereas the MAX6349 series offers a manual reset input instead. Both families share the same core regulator architecture and are designed for portable equipment where power efficiency and compact packaging are critical constraints.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct replacements include other variants within the MAX6329 family (e.g., MAX6329TLUT-T) offering different fixed voltages or reset polarities. Cross-family alternatives like the MAX6324 or MAX6325 provide similar supervisory functions but may lack the integrated LDO capability.