MIC2211-MWBML TR

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

The MIC2211-MWBML TR is a dual µCap low dropout regulator manufactured by Microchip Technology. It provides two fixed positive output voltages of 2.8V and 1.6V. The first regulator sources up to 150mA, while the second sources up to 300mA. Operating within an input voltage range of 2.25V to 5.5V, it features a total quiescent current of 48µA and high output accuracy of ±1.0%. The device utilizes a 10-pin 3mm × 3mm MLF™ leadless package.

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

• Dual independent regulators with separate enable pins for individual control
• Stable operation using small ceramic output capacitors
• Ultra-low ground current consumption in active and shutdown modes
• Integrated thermal shutdown and current limit protection

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

• Cellular phones
• Wireless modems
• PDAs

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

Verify the specific ordering suffix against official documentation to confirm the exact output voltage combination and package type. Ensure compatibility with the required operating temperature range and check for any recent manufacturing changes or component obsolescence notices from the manufacturer before finalizing procurement plans.

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

Select this component when designing battery-operated systems requiring two distinct regulated rails from a single source. The dual enable inputs allow for precise power management sequencing. Verify that the load requirements do not exceed the 150mA and 300mA limits for the respective outputs to maintain specified performance characteristics.

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

This part belongs to the MIC2211 family of dual µCap LDOs designed for portable electronics. It replaces older discrete regulator solutions by integrating two regulators into a compact footprint. The design focuses on minimizing board space and component count while maintaining high efficiency and stability with modern ceramic capacitors.

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

Direct substitutes include other MIC2211 variants with different fixed voltage codes (e.g., MIC2211-JPYML) if the voltage levels match the application requirements. Cross-referencing pinouts and electrical specifications is essential when considering alternatives from other manufacturers.

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

What is the function of the CBYP pin?

The CBYP pin is used to bypass the internal reference voltage to ground with a capacitor, typically 0.01µF, to reduce output noise and increase power supply rejection.

How are the regulators enabled?

Each regulator has a dedicated TTL logic compatible enable pin (EN1 and EN2). A high signal enables the output, while a low signal shuts it down, allowing for zero-off-mode current consumption.