LT1117CM-2.85#PBF

Current - Output:	800mA
Base Part Number:	LT1117
Supplier Device Package:	D2PAK-3
Package / Case:	TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature
Control Features:	--
PSRR:	75dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.2V @ 800mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.85V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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

The LT1117CM-2.85#PBF is a adjustable, low dropout linear voltage regulator (LDO) device used in a wide variety of applications, especially serving as a low-noise and stable power supply for sensitive electronic components such as analog-to-digital converters, microcontrollers, RF transceivers and similar circuits. Its low quiescent current and high output accuracy makes it an ideal solution for energy-efficient and low-noise systems.

Features and Benefits

The adjustable version of the LT1117CM-2.85#PBF comes with many essential features, ideal for a wide variety of applications, with some key benefits obtained from incorporating the device in the circuit. Having a wide input voltage range of 4.5V to 18V, and an adjustable output voltage, the device is especially popular among portable and battery-powered systems. The device can provide output voltages ranging from 1.25V to 14V, adjusted with a single external resistor. The LT1117CM-2.85#PBF also combines low dropout voltage, quiescent current and high output accuracy. The device features an ultralow dropout voltage, down to 200mV while operating at full load ratings of 150mA. Its total quiescent current of 40μA, ensure low-power operation that is ideal for applications where battery life is an issue. Furthermore, the LT1117CM-2.85#PBF also provides excellent load and line regulation, with a maximum output voltage accuracy of 0.5%. The device is also reflow solderable, with a maximum junction temperature of 150°C.

Application Field

The wide operation range of the LT1117CM-2.85#PBF makes it an ideal candidate for a variety of applications, especially in portable and battery-powered products. It commonly used in combination with lithium-ion batteries, allowing low-noise, ultra-low dropout power supply that is stable and transparent even down to its lowest input voltage, without suffering from a decrease in the output voltage. The combination of its wide input voltage range, low dropout voltage and low quiescent current, makes the LT1117CM-2.85#PBF an ideal candidate for digital systems, providing clean and stable power required for sensitive digital circuits, such as microcontrollers, as well as analog-to-digital converters, RF transceivers and many others. The combination of its low operating current and high output accuracy, makes it especially ideal for battery-powered systems and handheld devices, such as cellular phones, digital cameras, PDAs, GPS receivers and many other such applications that require low-noise, low power consumption and high accuracy output voltages. The device can also be used in many other applications, such as computer motherboards, servers, industrial, automotive and communications equipment.Working Principle

The LT1117CM-2.85#PBF is basically a three-terminal adjustable positive linear voltage regulator that uses a reference voltage of 1.24V in combination with an external resistor to adjust the output voltage. The output voltage can be adjusted between 1.25V and 14V and, unlike many other adjustable voltage regulators, it has the capability of providing up to 150mA of output current. The device can be divided into two main sections, the input stage, responsible for regulating the input voltage and isolating the output from the input, and the reference section, responsible for providing the reference voltage to the output.In the input stage, the input signal is applied to the LT1117CM-2.85#PBF, and the current through the main rectifier will adjust to the input signal, regulating it. The increase in the current through the main rectifier will cause an increase in the voltage drop across it, resulting in a decrease in the voltage across the output diode. In the reference section, the voltage across the output diode is compared to the reference voltage of 1.24V. If the voltages are not equal, then the error amplifier will adjust the bias current to the main rectifier, until the voltages are equal. This will cause the main rectifier to adjust the input current and ensure a stable output voltage.Conclusion

The LT1117CM-2.85#PBF is a adjustable, low dropout linear voltage regulator (LDO) device that integrates an extensive feature set for a variety of applications, especially portable and battery-powered products. Its wide input voltage range and adjustable output voltage, low dropout voltage and quiescent current and high output accuracy, makes it an ideal choice for a wide variety of applications, from digital and analog circuits, to microcontrollers, RF transceivers and much more. Its main operating principle is based on the use of a reference voltage in combination with an external resistor to adjust the output voltage, while the input stage regulates the input voltage and isolates the output from the input. All in all, the LT1117CM-2.85#PBF is an ideal choice for low-noise and low power supply designs, ensuring both power efficiency and stable power to sensitive analog and digital components.

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

Part Number	Manufacturer	Price	Quantity	Description