Microchip Fixed LDO Voltage Regulator 3.3V 300mA SOT-23-5
Microchip Fixed LDO Voltage Regulator, 3.3V output, 300mA, SOT-23-5. Ideal for battery-powered & portable devices.
The Microchip Fixed LDO Voltage Regulator is an advanced, general-purpose low dropout device supplied in a 5-pin SOT-23 surface mount package. Designed for high performance, it is particularly suitable for battery-powered applications where power efficiency is crucial.
This regulator features an auto-discharge function on the output, which activates when the enable pin is low. Additionally, an internal pull-down resistor on the enable pin disables the output if the pin is left floating, making it ideal for use cases where the control signal is floating during processor boot-up. The device can also enter a zero off-mode current state, drawing virtually no current when disabled, thus conserving battery life.
With a fixed output voltage of 3.3V and an input voltage range from 2.5V to 5.5V, this LDO delivers up to 300mA of output current. It ensures high output accuracy of ±2% and maintains a low quiescent current of just 38μA. The device remains stable with a 1µF ceramic output capacitor and features a low dropout voltage of 160mV at 300mA. Built-in thermal shutdown and current limiting protection safeguard the component under demanding conditions. The operating junction temperature ranges from -40°C to 125°C. Please note that this is an ESD-sensitive device; proper precautions are recommended to avoid performance degradation.
Key Specifications
- Output Voltage: 3.3V
- Input Voltage Range: 2.5V to 5.5V
- Maximum Output Current: 300mA
- Dropout Voltage: 160mV at 300mA
- Quiescent Current: 38μA
- Output Accuracy: ±2%
- Package: SOT-23-5
- Dimensions: 43 mm x 33 mm x 15 mm
- Weight: 0.363 grams
- Power Management
- Consumer Electronics
- Portable Devices
- Medical Equipment
- Output Type: Fixed
- Output Voltage: 3.3V
- Input Voltage Range: 2.5V to 5.5V
- Maximum Output Current: 300mA
- Dropout Voltage: 160mV at 300mA
- Quiescent Current: 38μA
- Output Accuracy: ±2%
- Polarity: Positive Output
- Number of Outputs: 1
- Mounting Type: Surface Mount
- Package / Case: SOT-23-5
- Number of Pins: 5
- Operating Junction Temperature Range: -40°C to 125°C
- Special Feature: Auto discharge on output
- Special Feature: Internal pull-down resistor on enable pin
- Special Feature: Thermal shutdown and current limiting protection
- Height: 43 mm
- Width: 33 mm
- Depth: 15 mm
- Weight: 0.363 grams
- Output Current Max: 300mA
- Max Output Current: 300mA
- IC Mounting: Surface Mount
- IC Case / Package: SOT-23
- of Pins: 5Pins
- Operating Temperature Min: -40°C
- Operating Temperature Max: 125°C
- Product Range: 3.3V 300mA LDO Voltage Regulators
- SVHC: No SVHC (04-Feb-2026)
Documents
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