MIC39151-1.8BT

Voltage Dropout (Max):	0.5V @ 1.5A
Base Part Number:	MIC39151-1.8
Supplier Device Package:	TO-220-5
Package / Case:	TO-220-5
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	--
Current - Output:	1.5A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
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 MIC39151 device is a 1.8V fixed-output, low-dropout (LDO) linear regulator that operates with a wide input voltage range and a low quiescent current. It is ideal for applications where space, power, and performance are critical such as notebook computers, disc drives, network nodes, and portable products. This device is available with a 1.78V to 1.82V output and up to 300mA output current using an internal PMOS pass transistor. It features low quiescent current operation and high power supply rejection ratio (PSRR).

Application Field

The MIC39151 is designed for use in consumer electronics and other high-efficiency applications. Its low output dropout voltage and adjustable current limit protect against short-circuiting or momentary overloads. This device features short-circuit protection (SCP) which protect the device from output over-voltages. Additionally, the device features thermal shutdown for extra protection against thermal overloads. The MIC39151 is also designed for applications where input and output bypassing is important. The MIC39151 also offers an adjustable soft-start feature which reduces in-rush currents during start-up, avoiding stress on the associated components. The MIC39151 is well suited to be used as a regulator in notebook computers, disc drives, network nodes, and portable products. It is also ideal for use in applications such as point-of-load (POL) converters, digital power management ICs, power over Ethernet (PoE) switches and more.

Working Principle

The MIC39151 is an LDO regulator designed to operate with a wide input voltage range and low quiescent current. It is designed to reduce output voltage droop as the output current is increased, providing very efficient performance from a 1.8V supply voltage. The MIC39151 features an internal PMOS pass transistor which operates as a low on-resistance switch. When the input voltage is greater than the output voltage by a tolerance of +0.2V, the PMOS switch is enabled, allowing current to flow from the input to the output. When the PMOS switch is disabled, current flows from the output to ground, preventing output voltage from exceeding 1.80V. The MIC39151 also features an adjustable soft-start feature which minimizes in-rush current and reduces start-up stress on the components.The MIC39151 offers short-circuit protection, thermal shutdown, and output voltage over-voltage protection. It also features a precision voltage reference, internal compensation, and an adjustable current limit. The device is also designed for use in high temperature environments.

Conclusion

The MIC39151 is an ideal solution for applications that require efficient and reliable operation in a very small area. It is designed to reduce output voltage droop, offer protection against short circuits and thermal overloads and provide an adjustable soft-start feature. The device is also designed for high temperature environments and optimized for use in consumer electronics and other high-efficiency applications.

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

Part Number	Manufacturer	Price	Quantity	Description