MIC5207-3.3YZ TR

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

The MIC5207-3.3YZ TR is a fixed-output linear voltage regulator from the MIC5207 family, manufactured by Microchip Technology. It provides a nominal output voltage of 3.3V with a guaranteed maximum continuous output current of 180 mA. The device operates within an input voltage range of +2.5V to +16V and supports junction temperatures from -40°C to +125°C. Key electrical specifications include a typical dropout voltage of 165 mV at 150 mA load, a ground pin current of 720 µA at 100 mA load, and a ripple rejection ratio of 75 dB. The unit features high initial accuracy better than 3% and includes integrated current limiting and thermal shutdown protection.

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

• Ultra-low-noise output performance suitable for sensitive analog circuits
• Logic-controlled electronic enable/shutdown feature compatible with CMOS or TTL logic levels
• Integrated reversed-battery protection, current limiting, and over-temperature shutdown

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

• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery-powered equipment
• PCMCIA VCC and VPP regulation/switching
• SMPS post-regulator and DC/DC modules

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

Verify that the ordering suffix 'TR' corresponds to the standard Tape and Reel packaging configuration as defined in the manufacturer's product identification system. Confirm that the specific part number variant matches the required package type (SOT-23-5) and temperature range (-40°C to +125°C). Ensure compatibility with the intended PCB footprint and soldering profile before finalizing procurement orders.

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

Select this component when low noise and precise voltage regulation are critical requirements. The MIC5207 is designed for battery-powered applications due to its efficient operation and shutdown capabilities. Consider the thermal resistance characteristics of the SOT-23-5 package when calculating maximum power dissipation limits under heavy load conditions to ensure reliable operation across the specified temperature range.

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

This component belongs to the MIC5207 series of 180 mA Low-Noise LDO Regulators produced by Microchip Technology. The series offers both fixed and adjustable output voltage versions packaged in small form factors like SOT-23-5 and TSOT-23-5. The MIC5207 is engineered specifically for handheld and portable devices requiring stable power supplies with minimal quiescent current consumption and robust protection features.

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

MIC5207-3.3YM5-TR

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

How does the reference bypass capacitor affect stability?

Connecting a 470 pF capacitor from the BYP pin to GND reduces output noise but decreases phase margin; therefore, output capacitors of 2.2 µF or greater are generally required to maintain stability.

What is the function of the EN pin?

The EN pin serves as a logic-controlled electronic enable/shutdown input. Driving it high enables the regulator, while driving it low shuts down the device, reducing power consumption nearly to zero.