MIC5233-5.0YM5-TR

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1. Describe

The MIC5233 is a 100 mA, high precision, low dropout Regulator with high input voltage and ultra-low ground current. This combination of high and low voltage Ground current makes the MIC5233 ideal for multi-cell batteries Lithium-ion battery system. A µCap LDO design, the MIC5233 is stable ceramic or tantalum output capacitors. it just needs A 2.2 µF output capacitor for stability. Features of the MIC5233 include enable input, thermal Shutdown, Current Limit and Reverse Battery Protection, and reverse leakage protection. The MIC5233 is available in fixed and adjustable output voltage versions in 5-pin SOT23 and 3-Pin SOT223 Package with Junction Temperature The range is –40°C to +125°C.

2. Feature

    1. AEC-Q100 qualification and PPAP competency; Only available in 5-pin SOT23 package

    2. Wide input voltage range: 2.3V to 36V

    3. Ultra-low ground current: 18 µA

    4. 270 mV low dropout voltage at 100 mA

    5. High output accuracy of ±2.0% over temperature

    6. µCap: stabilized ceramic or tantalum capacitor

    7. Excellent line and load regulation specifications

    8. Near-zero shutdown current: 0.1 µA typical

    9. Reverse battery protection

  10. Reverse leakage protection

  11. Thermal shutdown and current limit protection

  12. 5-lead SOT23 and 3-lead SOT223 packages

3. Application

    1. Keep-Alive Power Supplies in Notebooks and Portable Computers

    2. USB power

    3. Logic power supply from high voltage battery

    4. vehicle electronics

    5. Battery powered system

    6. 3-4 cell Li-Ion battery input range

4. Pin configuration

5. Pin Description

6. Output Capacitor

The MIC5233-5.0YM5-TR requires an output capacitor for stability. The design requires 2.2 µF or greater on the output to maintain stability. The design is optimized for use with low-ESR ceramic chip capacitors. High-ESR capacitors may cause high-frequency oscillation. The maximum recommended ESR is 3Ω. The output capacitor can be increased without limit. Larger valued capacitors help to improve transient response. X7R/X5R dielectric-type ceramic capacitors are recommended because of their temperature performance. X7R-type capacitors change capacitance by 15% over their operating temperature range and are the most stable type of ceramic capacitors. Z5U and Y5V dielectric capacitors change value by as much as 50% and 60%, respectively, over their operating temperature ranges. To use a ceramic chip capacitor with Y5V dielectric, the value must be much higher than an X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range.

7. Input Capacitor

The MIC5233-5.0YM5-TR has a high input voltage capability, up to 36V. The input capacitor must be rated to sustain voltages that may be used on the input. An input capacitor may be required when the device is not near the source power supply or when supplied by a battery. Small surface mount, ceramic capacitors can be used for bypassing. A larger value may be required if the source supply has high ripple.