on October 24th 920

Why Choose the MIC29302WU for Power Regulation?

The MIC29302WU is an impressive voltage regulator designed to deliver reliable performance in a variety of applications. With the ability to provide up to 3A of output current and an adjustable voltage range of 1.25V to 25V, it meets the needs of both battery-powered devices and power systems. This article will explore the key features of the MIC29302WU, its applications, technical specifications, and more. You'll discover how this versatile component can enhance your projects while maintaining efficiency and stability.

Catalog

Overview of MIC29302WU

The Microchip Technology MIC29302WU stands out as a high-current, low-dropout voltage regulator. It is capable of delivering up to 3A of output current while offering an adjustable output voltage ranging from 1.25V to 25V. This flexibility makes it suitable for various applications, from battery-powered devices to post regulators. One of the notable features is its use of a proprietary Super βeta PNP® process with a PNP pass element. This design helps achieve a low dropout voltage of 450mV at full load and keeps the ground current low. A shutdown feature is also included, allowing you to turn off the regulator using a logic signal when not needed. Available in a TO-263-5 package, the MIC29302WU operates effectively in a wide temperature range of -40°C to +125°C, making it a solid choice for applications that require reliable performance in challenging environments.

Key Features of MIC29302WU

Superior Current Capacity

The MIC29302WU excels in its ability to deliver a high output current of up to 3A. This makes it suitable for applications that require significant power, ensuring that your devices operate smoothly and effectively under demanding conditions.

High Precision

You can rely on the precision of the MIC29302WU. It maintains an accurate output voltage, which is critical for devices that depend on stable power. This feature helps prevent fluctuations that could affect the performance of your applications.

Minimal Dropout Voltage

With a low dropout voltage of just 450mV at full load, the MIC29302WU allows for efficient power usage. This feature ensures that the regulator maintains its output voltage even when the input voltage is close to the desired output level. It enhances battery life and overall efficiency.

Minimal Ground Current

The MIC29302WU is designed to operate with minimal ground current. This means it consumes less power from the input source, making it an energy-efficient option for your projects. Less ground current can lead to improved overall system performance.

100% Assured Tolerance

You can expect 100% assured tolerance with the MIC29302WU. This feature guarantees that the output voltage remains within a specified range, which is vital for maintaining the reliability of your electronic devices.

Programmable Positive LDO Regulator

The MIC29302WU serves as a programmable positive LDO regulator, giving you flexibility in adjusting the output voltage to meet your specific needs. This adaptability makes it a valuable component for a variety of applications.

PSSO5 Logic Level ON/OFF Control

This regulator includes PSSO5 logic level ON/OFF control for bipolar applications. This feature allows you to easily manage power consumption by turning the regulator on or off as needed, adding convenience to your design.

Error Flag Functionality

An error flag indicates when the output voltage is not in compliance. This feature provides you with a clear signal, allowing for quick troubleshooting and ensuring that your devices function as intended.

Wide Operating Temperature Range

The MIC29302WU operates effectively in a wide temperature range from -40°C to +125°C. This versatility makes it suitable for a range of environments, ensuring reliable performance regardless of temperature fluctuations.

Technical Specifications of MIC29302WU

Technical specifications, attributes, parameters, and comparable parts related to the Microchip Technology MIC29302WU.

Type	Parameter
Factory Lead Time	7 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
Number of Pins	5
Supplier Device Package	TO-263-5
Operating Temperature	-40°C to 125°C
Packaging	Tube
Published	1999
Part Status	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Max Operating Temperature	125°C
Min Operating Temperature	-40°C
Base Part Number	MIC29302
Number of Outputs	1
Voltage - Input (Max)	26V
Output Voltage	12V
Output Type	Adjustable
Max Output Current	3A
Polarity	Positive
Output Configuration	Positive
Quiescent Current	35mA
Control Features	Enable
Accuracy	1%
Max Output Voltage	25V
Voltage - Output (Min/Fixed)	1.25V
Number of Regulators	1
Min Input Voltage	2.5V
Protection Features	Over Current, Over Temperature, Reverse Polarity, Transient Voltage
Voltage Dropout (Max)	0.6V @ 3A
Max Input Voltage	26V
Reference Voltage	1.24V
Dropout Voltage	370mV
Min Output Voltage	1.27V
Input Bias Current	40nA
Output Voltage Accuracy	1%
Height	4.59mm
Length	10.67mm
Width	9.17mm
REACH SVHC	No SVHC
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

Pinout Diagram for MIC29302WU

Applications of MIC29302WU

Battery-Powered Devices

The MIC29302WU is an excellent choice for battery-powered devices. It can provide a stable and adjustable output voltage for laptops, cameras, phones, and similar devices. By minimizing dropout voltage and ground current, it helps extend battery life, allowing you to use your devices longer between charges.

Post Regulators

You can utilize the MIC29302WU as a post regulator for switching power supplies, such as buck converters, boost converters, or flyback converters. It enhances output voltage accuracy and ripple rejection by filtering out switching noise. This improvement in performance helps ensure that your devices operate reliably under varying loads.

Distributed Power Systems

In distributed power systems, the MIC29302WU acts as a point-of-load regulator. It can efficiently regulate power for servers, routers, or telecom equipment. This local regulation ensures that each load receives the necessary power with high efficiency and a fast transient response, contributing to the overall stability of your system.

CAD Models for MIC29302WU

MIC29302WU Symbol

MIC29302WU Footprint

MIC29302WU 3D Model

Alternatives to MIC29302WU

Part Number	Description	Manufacturer
MIC29302WU-TR	1.25 V-25V Adjustable Positive LDO Regulator, 0.6V Dropout, PSSO5	Microchip Technology Inc
MIC29303BUT&R	Adjustable Positive LDO Regulator, 1.25V Min, 25V Max, 0.6V Dropout, Bipolar, PSSO5, TO-263, D2PAK-5	Micrel Inc
MIC29303WU-TR	1.25 V-25V Adjustable Positive LDO Regulator, 0.6V Dropout, PSSO5	Microchip Technology Inc
MIC29303BU	Adjustable Positive LDO Regulator, 1.25V Min, 25V Max, 0.6V Dropout, Bipolar, PSSO5, TO-263, D2PAK-5	Microchip Technology Inc
MIC29302BUT&R	Adjustable Positive LDO Regulator, 1.25V Min, 25V Max, 0.6V Dropout, Bipolar, PSSO5, TO-263, D2PAK-5	Micrel Inc
MIC29302BU	Adjustable Positive LDO Regulator, 1.25V Min, 25V Max, 0.6V Dropout, Bipolar, PSSO5, TO-263, D2PAK-5	Micrel Inc
MIC29302BUT&R	Adjustable Positive LDO Regulator, 1.25V Min, 25V Max, 0.6V Dropout, Bipolar, PSSO5, TO-263, D2PAK-5	Microchip Technology Inc
MIC29302WU	Adjustable Positive LDO Regulator	Rochester Electronics LLC
MIC29303WU	1.25 V-25V Adjustable Positive LDO Regulator, 0.6V Dropout, PSSO5	Microchip Technology Inc

Manufacturer Information for MIC29302WU

Microchip Technology Incorporated is a well-known American company that focuses on producing integrated circuits. They specialize in a variety of products, including microcontrollers, mixed-signal devices, and analog devices. With their wide range of offerings, which include linear, interface, and wireless products, Microchip Technology supports various applications. Their microcontrollers, such as PIC, dsPIC, AVR, and SAM, are commonly used across different industries. Additionally, they provide serial EEPROM and SRAM devices, along with embedded security and radio frequency (RF) devices.

Comparable Parts to MIC29302WU

The three components listed on the right share similar specifications with the Microchip Technology MIC29302WU.

Part Number	MIC29302WU	LP3856ESX-2.5	LP38501TSX-ADJ-NOPB	LP38859SX-1.2
Manufacturer	Microchip Technology	Texas Instruments	Texas Instruments	Texas Instruments
Package / Case	TO-263-6, D2Pak (5 Leads + Tab), TO-263BA	TO-263-6, D2Pak (5 Leads + Tab), TO-263BA	TO-263-6, D2Pak (5 Leads + Tab), TO-263BA	TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
Number of Pins	5	5	5	5
Number of Outputs	1	1	1	1
Max Output Current	3A	3A	3A	3A
Min Input Voltage	2.5V	2.7V	1.15V	2.5V
Max Input Voltage	26V	-	-	-
Voltage - Input (Max)	26V	5.5V	5.5V	7V
Min Output Voltage	1.27V	600mV	1.2V	2.5V
Output Voltage	12V	5V	1.2V	2.5V
Max Output Voltage	25V	5V	-	-
Voltage - Output (Max)	25V	5V	-	-
Accuracy	1%	3.50%	1%	1.50%
View Compare	MIC29302WU vs LP3856ESX-2.5	MIC29302WU vs LP38501TSX-ADJ/NOPB	MIC29302WU vs LP38859SX-1.2

Datasheet PDF

MIC29302WU Datasheet:

MIC29302WU.pdf

MIC29302WU-TR Datasheet:

MIC29303WU-TR.pdf

MIC29303WU-TR Datasheet:

MIC29303WU-TR.pdf

MIC29303WU Datasheet:

MIC29303WU.pdf

LP3856ESX-2.5 Datasheet:

LP3856ESX-2.5.pdf

Frequently Asked Questions [FAQ]

1. What is the MIC29302WU?

The MIC29302WU is a voltage regulator known for its high current capacity, precise output, and low dropout characteristics. It effectively maintains a stable voltage with minimal ground current, typically ranging between 12mA at full load. This performance is achieved through Micrel's unique Super η PNP® technology and a PNP pass element, which contribute to its efficient operation.

2. What does dropout voltage mean for the MIC29302WU?

Dropout voltage refers to the minimum difference needed between the input and output voltages for the regulator to function correctly. For the MIC29302WU, the typical dropout voltage is 450mV when it is under full load. This means that the input voltage must exceed the output voltage by at least 450mV to ensure the regulator can provide the desired voltage consistently.

3. How much ground current does the MIC29302WU use?

Ground current is the flow of current from the input to the ground pin of the regulator. The MIC29302WU is designed to use a very low ground current, which is around 12mA at full load. This low consumption helps improve overall efficiency, allowing the regulator to draw less power from the input source while maintaining performance.