AP1117Y18L-13

Current - Output:	1A
Base Part Number:	AP1117
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 (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Part Status:	Obsolete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)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

AP1117Y18L-13 is an adjustable step-down and step-up switching regulator designed to provide a regulated voltage with high efficiency and low quiescent current. It utilizes synchronous rectification and provides very high efficiency and is suitable for various applications. This product also offers flexibility, with adjustable output voltage, as well as a wide operating temperature range.

Application Field

AP1117Y18L-13 regulating voltage can be applied in a variety of industrial applications, such as LED driver with constant current, voltage output circuit, LED display, battery charger, AC-DC adapter, automotive lighting, power supply, etc. It also offers features such as low current consumption for minimum circuit power dissipation and under-voltage protection perfect for monitoring power-up and power-down sequences.

Working Principle

AP1117Y18L-13 converts unregulated dc input voltage to a regulated output voltage. It contains an internal voltage reference, oscillator and control circuitry. It operates in 180° out of phase mode and utilizes synchronous rectification for high efficiency. An external resistor sets the operating frequency, external resistors set the output voltage and a resistor or voltage can be used to set the maximum current limit. The device operates in a "pulse-skipping" mode when the input voltage is higher than the maximum voltage setting, allowing it to maintain the output ripple voltage to a very low level.

When the input voltage is lower than the output voltage, the AP1117Y18L-13 works in buck mode to step down the voltage. Conversely, when the voltage is higher than the output voltage, the converter will go into boost mode to increase the output voltage. The inductor current is sensed for over-current protection. If the inductor current exceeds the current limit threshold, the output voltage will be forced to shut down.

In addition, the AP1117Y18L-13 can also provide overload protection by sensing the temperature of the board. If the temperature is too high, the output voltage will be forced shut down, thus preventing damage to components.

Conclusion

AP1117Y18L-13 is a highly efficient and adjustable step-down and step-up switching regulator. It can be widely used in many industrial applications and provides excellent performance in terms of efficiency and power dissipation. The device offers features such as low current consumption for minimum circuit power dissipation, adjustable output voltage, wide operating temperature range and overload protection.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description