LD1086D2M33TR

Current - Output:	1.5A
Base Part Number:	LD1086
Supplier Device Package:	D2PAK-3
Package / Case:	TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	79dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.5V @ 1.5A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LD1086D2M33TR is a low dropout voltage regulator intended for use in applications requiring enhanced efficiency, low stand-by current, and improved power supply ripple rejection. Utilizing the well proven two-terminal Low Drop Out (LDO) principles, this device is encapsulated in a TO-252 (DPAK) package as an RoHS and Halogen-free footprint.

Application Field

The LD1086D2M33TR is well suited to meet the requirements of system designers and the emerging PoE, VPN and xDSL market where the system voltage decoupling must be very effective. This device provides improved power supply ripple and noise performance, due in part to its 39 mV maximum dropout and very low quiescent current of 14 uA at full load. Futhermore, this device achieves a very high PSRR of 65 db at 100 kHz, making it ideal for applications requiring a stable, regulated supply.

Features

The LD1086D2M33TR offers a wide range of features, including an adjustable output voltage from 1.8V to 10V, dual output options (selectable, open drain), and an output current of up to 3.3A. Its output current limiting is exceptional due to its low quiescent current, high voltage rating (17VZ@ 0.5A), and low thermal resistance (0.5-0.6 C/W). Its robust design enables it to handle high spikes in input voltage, reducing the risk of system damage.

Working Principle

The operation of the LD1086D2M33TR is based on the two-terminal Low Drop Out (LDO) principles. This device senses input voltage (VIN), compares it to an internally generated reference voltage (VREF), and regulates the output voltage (VOUT) according to the nominal difference between the two.When the input voltage is above the reference voltage, a pass transistor is switched on and the output voltage is regulated to the desired level. When the input voltage drops below the reference voltage, the pass transistor is switched off and the output voltage drops towards 0V.The device is designed to ensure stability and maximum efficiency, with low dropout and low quiescent current. Furthermore, the device also offers high voltage rating and low thermal resistance, making it suitable for many applications.

Conclusion

The LD1086D2M33TR is a low dropout voltage regulator intended for use in applications requiring enhanced efficiency, low stand-by current, and improved power supply ripple rejection. This device is well suited to meet the requirements of system designers and the emerging PoE, VPN and xDSL market, where the system voltage decoupling must be very effective. It provides an adjustable output voltage from 1.8V to 10V, dual output options (selectable, open drain), and an output current of up to 3.3A, making it suitable for many applications. The operation of the LD1086D2M33TR is based on two-terminal Low Drop Out (LDO) principles and ensures stability and maximum efficiency.

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