LD1117DT30

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LD1117DT30 is an Integrated Mobile Power Management Unit (PMIC). It belongs to the Linear Voltage Regulators family and has dedicated functions to be used in mobile applications.

The LD1117DT30 is a low dropout, low power, and low cost linear regulator providing up to 300mA of output current with a reference voltage of 0.6 V. An internal 40mV start-up voltage can also serve as a power-on reset that helps ensure that the device starts properly when the supply voltage is low. Other features include protected outputs, slewing shut-down, and logic enable shutdown.

LD1117DT30 Application Field

The LD1117DT30 is designed primarily for mobile applications such as smartphones, mobile handsets, portable applications, digital cameras, digital cameras, and handheld gaming devices. The regulator is appropriate in any application needing a low dropout voltage regulator with minimal area consumption or power consumption.

LD1117DT30 is suitable for a wide range of input voltages, including battery supplies and car electrical systems, making it ideal for automotive applications. It is also appropriate for applications powered by AC adapters or USB supplies. LD1117DT30 provides a stable output voltage in a wide range of temperatures and is compatible with a wide range of logic family inputs.

LD1117DT30 Working Principle

In linear voltage regulator designs, the input voltage is applied to the input side of a power transistor (MOSFET). A feedback circuit is used to measure the output voltage and compare it to a reference voltage (Vref). If the output voltage is higher than the reference voltage the transistor is turned off, while if the output voltage is too low the transistor is turned on acting as a variable resistor without introducing any distortion.

This allows LD1117DT30 to regulate the output voltage in order to meet a set of requirements. Thanks to its protections, the device will turn off when an overvoltage or an overcurrent situation is detected, helping to keep the system safe from damages

LD1117DT30 also includes shutdown capabilities. This feature allows to quickly switch off the regulator easily by an external pin, reducing the current consumption in case of inactivity for power-sensitive applications.

LD1117DT30 is a low dropout linear PMIC. Such an advanced level of integration makes it of the most suitable solutions for devises requiring a regulated output voltage with minimal cost and power consumption.

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