Part Number: MIC29302WU-TR

Manufacturer: Microchip Technology

Description: LDO Voltage Regulators 3.0A LDO

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Technical Specifications of MIC29302WU-TR

Datasheet  MIC29302WU-TR datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – Linear
Manufacturer Microchip Technology
Packaging Tape & Reel (TR)
Part Status Active
Regulator Topology Positive Adjustable
Voltage – Output 1.25 V ~ 26 V
Current – Output 3A
Voltage – Dropout (Typical) 0.37V @ 3A
Number of Regulators 1
Voltage – Input Up to 26V
Current – Limit (Min)
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
Supplier Device Package TO-263-5

MIC29302WU-TR Description

These devices were designed to handle high-current loads and have applications in low-current, shallow dropout systems. These devices were designed to handle high-current loads but can also be used in low-current, shallow dropout systems.

These systems require the devices to have minimal dropout voltage and ground current values; therefore, these characteristics are very significant. Other types of faults that are protected against include reversed lead insertion and reversed lead polarity. Versions with five pins and a fixed voltage include an ON/OFF control for the logic level and an error flag triggered whenever the output is not in the correct range.

Flagged conditions consist of a low input voltage (dropout), a restriction on the output current, a shutdown due to an excessive temperature, and excessively high voltage spikes on the input. If the ENABLE pin on the MIC29xx1 and MIC29xx2 isn’t needed for ON/OFF control, you can connect it directly to VIN on those two chips.

The MIC2915x/2930x/2950x are offered in surface mount TO-263 (D2Pak) and 3-pin and 5-pin TO-220 package configurations, respectively. A 5-pin TO-247 package for the MIC2975x 7.5A regulators may be purchased. The MIC29152 comes in a power D-Pak (TO-252) container with five pins and an adjustable output current of 1.5A. Check out the MIC37xx LDOs for applications with an input voltage of 6V or less.

MIC29302WU-TR Features

  • Low voltage at the point of dropout
  • Low current from the ground.
  • Accurate with a Tolerance of 1% That Is Guaranteed.
  • Extremely Fast Transient Response.
  • Protection against reverse battery and “load dump” conditions.
  • Shutdown in the Zero-Current Mode (5-Pin Versions).
  • Error Flag Signals Output Outside the Regulated Range (5-Pin Versions).
  • Additionally Designed for Less Demanding Loads While Still Maintaining Industry-Leading Performance Specifications
  • Versions with a fixed voltage as well as variable voltage


  • Battery-Powered Equipment
  • High-Efficiency Green Computer Systems
  • Automotive Electronics
  • High-Efficiency Linear Power Supplies
  • High-Efficiency Post-Regulator for Switching Supply

Application Information

All applications requiring moderate to high-current voltage regulators can use the MIC2915x, MIC2930x, MIC2950x, and MIC2975x, which are high-performance low-dropout voltage regulators. Their standard dropout voltage at full load ranges from 350 mV to 425 mV. It makes them particularly useful in battery-powered systems and high-efficiency noise filters in applications requiring post-regulators. In contrast to traditional NPN-pass transistor designs, where the minimal dropout voltage is constrained by the base-emitter voltage drop and the collector-emitter saturation voltage, the PNP output of these devices is only limited by the low VCE saturation voltage. A variable base driver requirement is a cost that must be paid in exchange for a low dropout voltage.

The Super ßeta PNP technique developed by Microchip, on the other hand, brings this drive requirement down to just 1% of the load current. The family of regulators known as MIC2915x/2930x/2950x/2975x is safeguarded against harm that fault situations could cause. There is a restriction placed on the current. This limitation is linear, and the output current remains constant while the system is overloading. When the die temperature rises above the maximum safe operating temperature of +125 degrees Celsius, the device goes into thermal Shutdown and becomes inoperable. Even if the input voltage jumps between –20V and +60V, it is still possible for the device and the load to survive, thanks to line transient protection.

The overvoltage sensor will turn off the regulator if the input voltage is more than about 32V. Because of how these regulators are designed, it is possible to apply voltages higher than the output voltage intended without causing a reverse current flow. The MIC29xx1 and MIC29xx2 variants include an ON/OFF control at the logic level. When turned off, the components of the system draw a very insignificant amount of current. A standard pinout is an additional feature shared by this regulator family. A design’s current need may increase or decrease, but you can keep using the same board layout because these regulators use the same pinouts.

● Minimum Load Current

These regulators, MIC2915x–2975x, are specified between loads of determinate magnitude. If the output current is too low, leakage currents will take the lead, increasing the output voltage. The following minimal load current completely overwhelms any anticipated leakage current across the whole range of operating temperatures.

● Adjustable Regulator Design

These regulators designated MIC2915x–2975x, are designed to be used between loads of a predetermined magnitude. Leakage currents will lead if the output current is too low, leading to an increase in the output voltage. This will occur if the output current is too low. The following minimal load current overwhelms any predicted leakage current across the whole range of operating temperatures. This is true regardless of the temperature at which the device is running.

● Error Flag

The MIC29xx1 and MIC29xx3 versions include an Error Flag that monitors the output voltage and indicates the presence of an error situation when the voltage falls 5% below what would be considered normal for that voltage. In an open-collector output, the error flag pulls low when there is a malfunction in the system. It may sink 10 mA. A low output voltage can be caused by various issues, the most common of which is an overcurrent fault (meaning the device has reached its current limit) and a low input voltage. During the overtemperature shutdown conditions, the flag output is rendered ineffective.

● Enable Input

The MIC29xx1 and MIC29xx2 variants include an enable (EN) input, enabling the user to control whether the device is on or off. When the device is turned off, a special design permits “zero” current to be drained, and only microamperes of leakage current are allowed to flow. The EN input includes thresholds compatible with TTL and CMOS, allowing for direct connection with logic; alternatively, it can be directly connected to 30V. Current consumption of around 20 A is necessary to activate the regulator.

Final thoughts

You have complete command over the voltage levels produced by your circuit thanks to the linear regulator model 1.828 MIC29302WU-TR manufactured by Microchip Technology.With the Microchip Technology linear regulator model 1.828 MIC29302WU-TR, you have full control over the levels of voltage that your circuit makes. Gold Over Nickel V is the typical dropout voltage when the current is running. It has an accuracy rating of Not Included% on the whole. This voltage-regulating device offers outputs in the form of Micro D-Sub. Your circuit will receive enough power from this supply, despite its low input voltage of SKT V and its maximum output voltage of Crimp V. The most efficient use of power management would result in an output of 26. The polarity of it is a 3. This voltage control device has an absolute minimum operating temperature of -55 degrees Celsius and an absolute maximum operating temperature of 150 degrees Celsius.

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