AP1117K18G-13

Current - Output:	1A
Base Part Number:	AP1117
Supplier Device Package:	TO-263-2
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	60dB (180Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.4V @ 1A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	18V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The AP1117K18G-13 is a low dropout voltage regulator designed to provide a highly accurate and adjustable output voltage from a very low input voltage source. It can be used in a wide variety of applications including embedded and consumer electronics, automotive, and battery-powered products. The datasheet for the AP1117K8G-13 provides detailed information on the device\'s operation and feature set.

Applicationfield

The AP1117K18G-13 is designed for applications requiring a precision, adjustable output voltage from a low input voltage source. The device can operate over a wide input voltage range of 2.3V to 20V, making it suitable for powering microcontrollers, ASICs, and other low-voltage digital components. It features an integrated low dropout protection (LDO) circuit to ensure that the output voltage remains within an appropriate range in the event of a low input voltage.The AP1117K18G-13 is highly accurate, offering an output voltage accuracy of ±0.5% over its entire operating temperature range. This accuracy makes it ideal for use in precision analog systems, such as medical instrumentation and industrial control applications. It has a low quiescent current of typically 50A, which makes it suitable for battery-operated applications where low power consumption is critical.The AP1117K18G-13 is also well-suited for automotive applications. Its wide operating temperature range of -40°C to +125°C makes it suitable for operation in harsh automotive environments. It also features reverse-polarity protection to protect the device from damage in the event of an accidental reverse battery connection.

Working Principle

The AP1117K18G-13 is an adjustable linear low dropout voltage regulator. A low dropout voltage regulator is a type of voltage regulator that ensures a regulated voltage output even when the input voltage is close to the regulated voltage. The device is able to do this by using an internal low dropout (LDO) circuit, which monitors the input and output voltages and adjusts the output voltage accordingly.The AP1117K18G-13 is an adjustable device, meaning that the user can set the desired output voltage with an external resistor or with an external voltage reference. A voltage reference is an internal or external source of highly accurate, stable voltage. The AP1117K18G-13 offers excellent line and load regulation characteristics, ensuring that the output voltage remains within a tight tolerance even when the line conditions or load change.The AP1117K18G-13 also features built-in protection features such as reverse-battery protection, over-current protection, over-temperature protection, and under-voltage lockout (UVLO). The UVLO prevents the device from turning on until the input voltage reaches a safe level, thus preventing the device from attempting to turn on in the event of a low input voltage.

Conclusion

The AP1117K18G-13 is a highly accurate and adjustable low dropout voltage regulator designed for powering microcontrollers, ASICs, and other low-voltage digital components. It can operate over a wide input voltage range of 2.3V to 20V, and offers excellent line and load regulation characteristics. It also features reverse-polarity protection and several other protection features that ensure safe operation in a wide variety of applications.

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