MIC5156-5.0YM

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Positive Fixed
Number of Outputs:	1
Current - Supply:	2.7mA
Voltage - Input:	3 V ~ 36 V
Operating Temperature:	-40°C ~ 85°C
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	MIC5156

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MIC5156-5.0YM Application Field and Working Principle

The MIC5156-5.0YM is a linear voltage regulator controller, specifically designed to provide a low-noise, low-dropout solution for applications requiring a high PSRR and output precision over a wide temperature range. The MIC5156-5.0YM is well suited for applications that require a tight control of output voltage over temperature and load current.

Application Field

The MIC5156-5.0YM is designed for use in a wide range of applications. It is especially suitable for applications that require low-noise and precise output voltage over a wide temperature range and high PSRR. Typical applications include power management in small and portable systems such as cellular phones, PDAs, digital cameras, and other devices powered by batteries or an external power supply.

Working Principle

At the core of the MIC5156-5.0YM is a high-performance voltage feedback loop that provides precise and accurate regulation of the output voltage. The output voltage is regulated to within 250mV of its setpoint, even when the load current changes over an operating range of 0.03A to 2.5A. This is accomplished by controlling the amount of current flowing to the output stage, based on the voltage feedback loop value. As the load current increases, the loop increases the current flow to compensate.The MIC5156-5.0YM features a state-of-the-art 0.042T PWM (pulse-width modulation) control detector that is extremely efficient at reducing power supply noise. The combination of the voltage feedback loop, PWM detector, and low-noise LDO (low-dropout regulator) circuit allows for the high PSRR and excellent load transient response. The MIC5156-5.0YM also features two complex protection circuits that protect the device from overheating, as well as other possible issues that could lead to damage, such as over-voltage and short circuits. As a result, the MIC5156-5.0YM is suitable for a wide range of conditions, including high-temperatures, thermal overloads, and other disastrous conditions.

Conclusion

The MIC5156-5.0YM is a linear voltage regulator controller, specially designed to provide a low-noise, low-dropout solution for applications requiring a high PSRR and output precision over a wide temperature range. It is widely used in power management of small portable systems, as it can provide precise and accurate regulation and excellent load transient response. Additionally, its two complex protection circuits provide for a safe and reliable operation even in extreme conditions.

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