AP1115AY33L-13 Integrated Circuits (ICs)

Current - Output:	600mA
Base Part Number:	AP1115
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	60dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.3V @ 600mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	18V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Cut Tape (CT)

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Introduction

The AP1115AY33L-13 is a series of Voltage Regulators – Linear that provides precise low-power voltage regulation with its low current operating modes, fast transient response, and noise suppression features. This series of voltage regulators is widely used for industrial, commercial, and embedded applications. As its output current range is from 3mA to 8mA, it is used for higher power applications and when accuracy is a necessity.

Features

The AP1115AY33L-13 series of Voltage Regulators – Linear includes several features that make it suitable for a wide range of industrial, commercial, and embedded applications. These features include:• Low operating current• High accuracy (±1.0% accuracy)• Fast transient response• Low-noise performance• Over-temperature and over-current protection• Suitable for temperatures from -40°C to +125°C• RoHS Compliant

Applications

The AP1115AY33L-13 is ideal for applications where precision, low power, and fast response time are important factors. These include industrial controllers, portable electronics, medical devices, automotive systems, and embedded systems. The low current operating modes and high accuracy makes it suitable for use in precision instruments and communication systems.

Working Principle

The AP1115AY33L-13 works by varying its output voltage depending on the input voltage. When the input voltage is higher than the output voltage, the output voltage is lowered by a proportional amount. When the input voltage is lower than the output voltage, the output voltage is raised by a proportional amount. This is done by using a differential amplifier that senses the difference in the input and output voltages and adjusts the output voltage accordingly.The AP1115AY33L-13 also uses an error amplifier to compare the output voltage to a reference voltage, and then adjusts it accordingly to keep the output voltage at the desired level. A bandgap reference circuit is used to provide a voltage reference in order to maintain a constant output voltage.Lastly, the AP1115AY33L-13 has a slew-rate-control capacitor which is used to reduce output voltage ringing, inrush current, and peak voltage.

Conclusion

The AP1115AY33L-13 is a series of Voltage Regulators – Linear from APEC. This device is designed for industrial, commercial, and embedded applications where low power and fast response time are important. It features low operating current, high precision (±1.0% accuracy), fast transient response, low-noise performance, and over-temperature and over-current protection. It operates by varying its output voltage depending on the input voltage and using an error amplifier to maintain a constant output voltage. It can remain stable over a wide temperature range from -40°C to +125°C and provides noise suppression with its slew-rate-control capacitor.

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