LT1085CM-3.6#PBF

Current - Output:	3A
Base Part Number:	LT1085
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:	72dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.5V @ 3A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.6V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

The LT1085CM-3.6#PBF is a monolithic linear voltage regulator capable of delivering up to 3.6A in an industry standard 8-pin MSOP package. It is a highly linear regulator optimized for excellent transient response and high AC accuracy of line and load regulation. The device is excellent for use in battery charging applications and offers cost saving and board area saving.

Application Field

The LT1085CM-3.6#PBF is designed for applications such as battery chargers and point-of-load power supplies, medical and industrial equipment, power over Ethernet (PoE) systems, and latest portable devices. This device also can be use in powering equipment from distributed power supplies, such as intermediate bus converters, motor controls, high frequency switching regulators, and more.

Features & Benefits

The LT1085CM-3.6#PBF features an adjustable output voltage and an internal short circuit current limit. It offers the highest output current for a 3.6V 8-pin MSOP package. Its few external components saves board space, and improved transient performance reduces noise and simplifies the circuit design. The LT1085CM-3.6#PBF provides excellent line and load regulation, regulation accuracy is ± 2% over line and load, and ± 0.7V over temperature.The device is able to withstand 15V input-to-output differential voltage and includes a power good flag to warn of a low output voltage. Operating up to 90C with up to 95C junction temperature, the LT1085CM-3.6#PBF offers an extended temperature range compared to similar offerings in other product categories.

Working Principle

The LT1085CM-3.6#PBF is a linear voltage regulator. The input voltage is applied to the input pins of the regulator, where it is regulated down to a lower output voltage. The regulator uses a voltage reference, usually a Zener diode, to set the output voltage. The output current is limited to a safe value by the current sensing circuit. The output current is then limited to a preset value, usually between 0.2A and 3.6A, depending on the application.When the output of the regulator is loaded, the regulator adjusts its output voltage to maintain a preset voltage. The LT1085CM-3.6#PBF can regulate output voltage without introducing line or load regulation errors. In addition to efficient power management, the LT1085CM-3.6#PBF must be able to handle a wide range of input and output voltages and currents, as well as any kind of transients, dips, or interrupts in power. It must also be able to adjust its output voltage dynamically, while operating over a wide temperature range and operating temperature.

Conclusion

The LT1085CM-3.6#PBF is a linear voltage regulator that is suitable for many types of applications, such as battery chargers and point-of-load power supplies, medical and industrial equipment, power over Ethernet (PoE) systems, and latest portable devices. It offers excellent line and load regulation, a wide input and output voltage range, and robust transient handling. With an internal short circuit current limit and an adjustable output voltage, it is a highly linear regulator optimized for excellent transient response and high AC accuracy of line and load regulation. It is also able to withstand 15V input-to-output differential voltage and includes a power good flag to warn of a low output voltage. The LT1085CM-3.6#PBF is an ideal choice for applications requiring a high performance, cost effective voltage regulator.

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