LT1763MPDE-3#PBF

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

The LT1763MPDE-3#PBF is a micropower, low noise, low dropout linear regulator manufactured by Analog Devices Inc. It provides a fixed 3V output with a maximum current of 500mA and operates within an input voltage range of 1.8V to 20V. The device features a typical dropout voltage of 300mV at full load and maintains a quiescent current of 30µA. It utilizes a 12-lead DFN package and supports an extended operating temperature range from -55°C to +125°C.

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

• Low output noise performance achievable with external bypass capacitor
• Micropower operation with controlled quiescent current in dropout
• Internal protection against reverse battery, overcurrent, and thermal overload
• Stable with small ceramic output capacitors without series resistance

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

• Cellular phones
• Battery-powered systems
• Noise-sensitive instrumentation systems

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

Verify the MP grade designation ensures compliance with the specified -55°C to +125°C operating junction temperature range. Confirm the 12-lead DFN package configuration matches the schematic footprint requirements. Ensure the fixed 3V output variant aligns with the target circuit design specifications before finalizing procurement.

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

Select this component for applications requiring stable regulation under varying load conditions while minimizing power consumption. The wide input voltage range accommodates single-cell lithium-ion or alkaline battery sources. Verify that the required output capacitance meets the minimum stability threshold for the specific load transient profile.

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

This part belongs to the LT1763 series of low dropout regulators designed for portable electronics. The MP suffix indicates military-grade temperature qualification compared to standard commercial grades. The DE package offers a compact surface-mount solution suitable for space-constrained printed circuit board layouts.

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

LT1763CDE-3#PBF

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

How does the BYP pin affect output noise?

Connecting a 0.01µF capacitor between the output and the BYP pin reduces the output voltage noise to a typical 20µVRMS over a 10Hz to 100kHz bandwidth.

What is the function of the SENSE pin on fixed voltage versions?

The SENSE pin serves as the input to the error amplifier. Connecting it directly to the OUT pin ensures optimum regulation, though remote sensing can eliminate trace resistance errors.