LP38690DT-5.0

Current - Output:	1A
Base Part Number:	LP38690
Supplier Device Package:	TO-252-3
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature
Control Features:	--
PSRR:	55dB (120Hz)
Current - Supply (Max):	100µA
Current - Quiescent (Iq):	55µA
Series:	--
Voltage Dropout (Max):	0.8V @ 1A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tube

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Introduction

LP38690DT-5.0 is a highly efficient, low voltage dropout (LDO) regulator providing excellent power supply regulation for microprocessor cores and other analog and digital circuits. Its ultra-low output noise and fast transient response make it ideal for system power applications. In addition, the LP38690DT-5.0 offers adjustable output voltage, built-in current limit and overtemperature circuit protection. It comes in a thermally enhanced SMD package, making it suitable for handheld and other high-density applications. This article will discuss LP38690DT-5.0 application field and working principle in detail.

Application Field

LP38690DT-5.0 is ideal for microprocessor cores and other analog and digital circuits in the areas of power management and voltage regulator. Its ultra-low output noise and fast transient response make it ideal for system power applications. It provides excellent regulation for noise-sensitive applications such as network and switching equipment, audio amplifiers, data processors, memory circuits and video displays. In addition, the LP38690DT-5.0 is suitable for low-noise, high-performance audio and video devices and high-capacity memory applications.LP38690DT-5.0 is designed to meet the stringent requirements of the latest generation of electronic products, such as consumer electronics, automotive, industrial, and medical industries. It can be used in the harsh conditions of automotive applications such as Body Electronics, Lighting and HVAC applications. It is also suitable for applications with high current demands such as motor drive systems, consumer appliance controllers and industrial power supplies.

Working Principle

The LP38690DT-5.0 is an integrated circuit that performs Voltage Regulation. It is a Low Dropout (LDO) regulator providing excellent power supply regulation for microprocessor cores and other analog and digital circuits. LDO regulators are based on the principle of controlling the output voltage by varying the internal resistance in relation to the input voltage. The LP38690DT-5.0 employs an internal power MOSFET to control the output voltage. It is designed to provide the cleanest possible power delivered to the load, with low dropout voltage, no power supply ripple and very fast transient response. To prevent overdriving the load, it has a built-in current limit which will shut down the output if the load current gets excessive. The LP38690DT-5.0 also features an adjustable output voltage and built-in over-temperature circuit protection. The adjustable output voltage is selectable by an external trimming resistor. It can be fine-tuned to adjust the output voltage to the exact level required.

Conclusion

LP38690DT-5.0 is an excellent solution for low-noise, high-performance audio, video and memory applications. Its ultra-low output noise and fast transient response make it ideal for system power applications. In addition, the LP38690DT-5.0 offers adjustable output voltage, built-in current limit and overtemperature circuit protection, making it suitable for handheld and other high-density applications. As such, it is the ideal choice for a wide range of applications, from consumer electronics to automotive, industrial and medical industries.

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