Overview
The LE33CZ-AP, produced by STMicroelectronics, is a very low-dropout voltage regulator designed for low-noise, low-power applications and battery-powered systems. This device is part of the LEXX series and is available in TO-92 and SO-8 packages. It features a very low dropout voltage of 0.2 V and a low quiescent current, making it highly suitable for applications requiring minimal power consumption and high efficiency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | -40 to 125 | °C |
| Output Voltage | 3.3 | V |
| Output Current Limit | 150 mA | mA |
| Dropout Voltage | 0.2 to 0.4 | V |
| Quiescent Current (ON mode) | 0.5 to 1 mA | mA |
| Quiescent Current (OFF mode) | 50 to 100 µA | µA |
| Line Regulation | 3 to 20 mV | mV |
| Load Regulation | 3 to 25 mV | mV |
| Supply Voltage Rejection | 80 dB at 120 Hz, 75 dB at 1 kHz, 60 dB at 10 kHz | dB |
| Output Noise Voltage | 50 µV (10 Hz to 100 kHz) | µV |
| Package Name | TO-92 | |
| RoHS Compliance | Ecopack2 |
Key Features
- Very low dropout voltage (0.2 V typical) and low quiescent current, making it suitable for low-noise, low-power applications and battery-powered systems.
- Pin-to-pin compatibility with the L78L series.
- Shutdown logic control in the SO-8 package configuration, allowing for part of the board to be put in standby mode to reduce total power consumption.
- Requires a 2.2 µF capacitor for stability, reducing component size and cost.
- TTL-compatible control input logic.
- High supply voltage rejection and low output noise voltage.
Applications
- Low-noise and low-power electronic devices.
- Battery-powered systems and portable electronics.
- Automotive applications due to its wide operating temperature range (-40°C to 125°C).
- Local voltage regulation in larger systems to reduce power consumption.
- Devices requiring high efficiency and minimal power loss.
Q & A
- What is the typical dropout voltage of the LE33CZ-AP?
The typical dropout voltage is 0.2 V.
- What is the operating temperature range of the LE33CZ-AP?
The operating temperature range is -40°C to 125°C.
- What is the output current limit of the LE33CZ-AP?
The output current limit is 150 mA.
- What type of package is the LE33CZ-AP available in?
The LE33CZ-AP is available in TO-92 and SO-8 packages.
- Is the LE33CZ-AP RoHS compliant?
- What is the quiescent current in ON mode for the LE33CZ-AP?
The quiescent current in ON mode is 0.5 to 1 mA.
- Does the LE33CZ-AP have a shutdown function?
- What is the recommended output bypass capacitance for the LE33CZ-AP?
The recommended output bypass capacitance is 2.2 µF.
- What are some typical applications for the LE33CZ-AP?
Typical applications include low-noise and low-power electronic devices, battery-powered systems, and automotive applications.
- Is the LE33CZ-AP pin-to-pin compatible with other regulators?
