STMicroelectronics LE33CD-TR Fixed LDO Regulator 3.3V 150mA SOIC-8
STMicroelectronics LE33CD-TR LDO regulator: 3.3V output, 150mA, low dropout, shutdown logic, ideal for power-sensitive electronics.
The STMicroelectronics LE33CD-TR is a low drop-out voltage regulator with an inhibit function, providing a fixed 3.3V output. It is designed for low-noise, low-power applications and is especially suitable for battery-powered systems due to its low quiescent current.
This device is pin-to-pin compatible with the L78L series. In the 8-pin SOIC package, it features a shutdown logic control (pin 5, TTL compatible), allowing parts of a board to be placed in standby when used as a local regulator, reducing overall power consumption. In the 3-terminal TO-92 configuration, the device is always in the on-state.
Key Features
- Very low drop-out voltage (0.2V typical)
- Output current up to 150mA
- Internal current and thermal limit
- 80dB typical supply voltage rejection
- Requires only a 2.2µF capacitor for stability, reducing component size and cost
- Input voltage range: 5.3V to 18V
- Operating temperature range: -40°C to 125°C
The LE33CD-TR is a versatile solution for power management in various electronic systems, offering stable performance and efficient power regulation.
- Low-noise applications
- Low-power applications
- Battery-powered systems
- Local regulation with standby capability
- Output Type: Fixed
- Output Voltage Nom: 3.3V
- Max Output Current: 150mA
- Dropout Voltage (Typical): 200mV
- Input Voltage Min: 5.3V
- Input Voltage Max: 18V
- Number of Outputs: 1
- Polarity: Positive Output
- IC Mounting: Surface Mount
- IC Case / Package: SOIC-8
- Operating Temperature Min: -40°C
- Operating Temperature Max: 125°C
- Supply Voltage Rejection: 80dB (typical)
- Special Feature: Shutdown logic control (TTL compatible)
- Special Feature: Low quiescent current
- Special Feature: Requires 2.2µF capacitor for stability
- Output Current Max: 100mA
- of Pins: 8Pins
- Product Range: 3.3V 150mA LDO Voltage Regulators
- SVHC: No SVHC (25-Jun-2025)
Documents
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website employs advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your basket and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll request you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
You may like
