MIC5322-MGYMT-TR

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

The MIC5322-MGYMT-TR is a dual-output ultra low-dropout linear regulator manufactured by Micrel, now part of Microchip Technology. It integrates two independent 150mA regulators into a compact 6-pin 1.6mm x 1.6mm Thin MLF package. The device provides fixed output voltages of 2.8V on LDO1 and 1.8V on LDO2. It operates with an input voltage range from 2.3V to 5.5V and features a single active-low enable pin for simultaneous control. Key electrical characteristics include a typical dropout voltage of 35mV at full load, high power supply rejection ratio exceeding 75dB, and ultra-low output noise below 30µVrms.

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

• Dual 150mA outputs integrated in a compact leadless package
• Bypass pin available to enhance noise performance and PSRR
• Ultra-low dropout voltage capability for efficient power management
• Single active-low enable pin controls both regulators simultaneously

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

• Mobile phones
• GPS receivers
• Portable media players
• Digital still and video cameras
• PDAs

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

Verify the manufacturer origin as this component was originally produced by Micrel before its acquisition by Microchip Technology. Confirm the specific marking code VMG corresponds to the 2.8V/1.8V output configuration. Ensure the package type matches the 6-pin 1.6mm x 1.6mm Thin MLF specification. Check for any updates to datasheets or ordering information due to corporate integration.

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

Select this component when space-constrained portable designs require dual regulated rails with low noise. The inclusion of a bypass pin makes it suitable for RF-sensitive applications like GPS modules. Verify that the required output currents do not exceed 150mA per channel. Consider the thermal resistance of the small package if operating near maximum current limits in high ambient temperatures.

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

This device belongs to the MIC5322 family of µCap ULDO regulators designed for high-performance portable electronics. The family offers various fixed voltage combinations within the same tiny footprint. The MIC5322 series is characterized by its ability to stabilize with small ceramic capacitors, reducing overall system cost and board area compared to traditional LDO solutions.

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

MIC5322-2.8/1.5YMT (Output: 2.8V / 1.5V)

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

How does the bypass pin affect the MIC5322's performance?

Connecting a capacitor to the BYP pin reduces output voltage noise and improves the Power Supply Rejection Ratio (PSRR), making it ideal for noise-sensitive applications.

What is the function of the /EN pin?

The /EN pin is an active-low enable input that controls both regulators simultaneously. Driving it low turns the outputs on, while driving it high shuts them down with minimal quiescent current.