MIC2211-GSBML-TR

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

The MIC2211-GSBML-TR is a dual fixed positive low dropout regulator manufactured by Microchip Technology. It provides two independent output voltages: Output 1 at 1.8V with a maximum current of 150mA, and Output 2 at 3.3V with a maximum current of 300mA. The device operates within an input voltage range of 2.25V to 5.5V and features a total quiescent current of 48µA. It utilizes a 10-pin 3mm x 3mm MLF package and includes thermal shutdown and current limit protection.

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

• Dual µCap LDO design enabling stability with small ceramic output capacitors
• Individual TTL logic compatible enable pins for zero-off-mode control
• High accuracy with +1.0% initial tolerance and +2.0% over temperature variation
• 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 suffix 'GSBML' against official ordering tables to confirm the 1.8V/3.3V fixed output configuration. Ensure the component matches the 10-pin 3x3 MLF leadless package specification. Confirm RoHS compliance status as indicated in the manufacturer documentation before finalizing procurement orders.

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

Select this component when a compact dual-rail power solution is required for battery-operated portable electronics. The ultra-low ground current makes it suitable for extending battery life. Verify that the application requires separate enable controls for each regulator output and can accommodate the specified 1µF ceramic output capacitor requirements for stability.

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

This part belongs to the MIC2211 family of dual µCap low dropout regulators originally developed by Micrel, Inc., now under Microchip Technology. The family offers various fixed and adjustable voltage combinations in a tiny 10-pin MLF package designed to minimize board space and component count for portable applications.

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

Cross-reference other MIC2211 variants with different voltage codes (e.g., GPBML for 1.8V/3.0V) if the specific 1.8V/3.3V combination is unavailable. Ensure any substitute maintains the same 10-pin MLF footprint and electrical characteristics.

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 to reduce output noise and increase power supply rejection.

Can the enable inputs be left floating?

No, the enable inputs are CMOS logic and must not be left floating; they require a defined high or low signal to operate correctly.