SPX1117T-L-3-3/TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	20V
Voltage - Output (Min/Fixed):	3.3V
Voltage - Output (Max):	--
Voltage Dropout (Max):	1.3V @ 800mA
Current - Output:	800mA
Current - Quiescent (Iq):	10mA
PSRR:	70dB (120Hz)
Control Features:	--
Protection Features:	Over Current, Over Temperature
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Supplier Device Package:	TO-263-3

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The SPX1117T-L-3-3/TR is a voltage regulator in the PMIC (Power Management ICs) category that falls within the Linear Voltage Regulator family. Though the SPX1117T-L-3-3/TR is a discontinuous-mode buck regulator, it also has low-dropout linear voltage regulator (LDO) capabilities. It has a no-load quiescent current of only 17μA typical, which is one of its major benefits. It offers a wide input voltage range (4.4V to 22V), adjustable output voltage (up to 20V) and a low 50mV dropout voltage, making it ideal for portable applications requiring high efficiency, low power consumption and flexibility. Additionally, the device is designed to have an extremely low output voltage ripple, which is helpful when dealing with noise-sensitive applications.The SPX1117T-L-3-3/TR is an ideal option for low-power applications such as cell phones, PDA\'s, MP3 players, digital cameras, and battery-powered equipment. Its high efficiency and low dropout makes it perfect for battery applications using Li-ion or NiMH batteries. The integrated over-voltage (OV), over-current (OC) and thermal protection (OTP) also help to make it suitable for use in portable devices where power dissipation may be an issue.The SPX1117T-L-3-3/TR is designed around a buck regulator topology. This means that the power supply circuit is split into two stages: a control stage and a switch mode power stage. The control stage is a low-dropping regulator that maintains a regulated output voltage of 5V, which is used to power the input voltage regulator circuit. This circuit, in turn, controls the switching action of an external N-MOSFET switch, which is used to regulate the output voltage.In the SPX1117T-L-3-3/TR, the external N-MOSFET switch is driven by an on/off signal from the control circuit. When the on/off signal is high the power switch is opened, and the output voltage is set at its preset voltage. When the signal is low,the power switch is closed and the output voltage drops to its regulated level. This way, the output voltage is regulated without having to adjust the input voltage.In addition to its standard buck regulator capabilities, the SPX1117T-L-3-3/TR also includes an internal LDO, which eliminates the need for an external linear regulator in many applications. This makes it perfect for applications that need to save space and reduce power requirements. The device has a no-load quiescent current of 17μA, which is extremely low compared to other voltage regulators and makes it ideal for low-power applications.The SPX1117T-L-3-3/TR is a versatile IC that offers a lot of features and flexibility in a small package. Its adjustable output voltage, low dropout and high efficiency makes it a great choice for a variety of applications. The integrated LDO capabilities also make it ideal for space constrained applications. Its integrated protection functions can help keep the device safe from damage in case of an over-voltage or over-current situation. Overall, the SPX1117T-L-3-3/TR is an excellent option for any low-power applications.

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