Texas Instruments

LP3996SD-3308/NOPB

LP3996SD-3308/NOPB Description

The LP3996SD-3308/NOPB is a dual linear regulator IC designed by Texas Instruments, offering fixed output voltages of 3.3V and 0.8V. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a 10-lead WSON package. It is designed for surface mount applications and features a maximum input voltage of 6V. The regulator is capable of delivering output currents of 150mA and 300mA, making it suitable for a variety of low-power applications. Despite its small footprint, the LP3996SD-3308/NOPB provides robust performance with a maximum supply current of 170 µA and a quiescent current of 100 µA. The device also includes protection features such as over-temperature and short-circuit protection, ensuring reliable operation under various conditions. While the product is currently marked as obsolete, it remains a viable option for legacy designs and specific applications where its unique features are required.

LP3996SD-3308/NOPB Features

• Output Type: Fixed
• Input Voltage Range: Up to 6V
• Output Current: 150mA and 300mA
• Number of Regulators: Dual
• Output Configuration: Positive
• Output Voltages: Fixed at 3.3V and 0.8V
• Voltage Dropout: 0.22V @ 150mA and 0.55V @ 150mA
• Supply Current: Max 170 µA
• Quiescent Current: 100 µA
• Power Supply Rejection Ratio (PSRR): 58dB to 45dB at 1kHz to 20kHz, and 70dB to 60dB at 1kHz to 20kHz
• Control Features: Enable
• Protection Features: Over-temperature and short-circuit protection
• Compliance: ROHS3 compliant, REACH unaffected
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Package Type: Tape & Reel (TR)

LP3996SD-3308/NOPB Applications

The LP3996SD-3308/NOPB is ideal for applications requiring dual fixed voltage outputs with low dropout and low quiescent current. Its dual regulator design makes it suitable for systems needing multiple voltage rails, such as in embedded systems, consumer electronics, and portable devices. The low dropout voltage ensures high efficiency, even at low input-to-output voltage differentials, making it suitable for battery-powered applications. The enable control feature allows for dynamic power management, enabling the regulator to be turned on or off as needed, which is beneficial for power-saving modes. The over-temperature and short-circuit protection features enhance reliability, making it suitable for rugged environments and applications where robustness is critical.

Conclusion of LP3996SD-3308/NOPB

The LP3996SD-3308/NOPB offers a compact and efficient solution for dual voltage regulation in low-power applications. Its fixed output voltages of 3.3V and 0.8V, combined with low dropout and quiescent current, make it an excellent choice for battery-operated devices and systems requiring multiple voltage rails. The inclusion of enable control and comprehensive protection features further enhances its versatility and reliability. Despite being marked as obsolete, the LP3996SD-3308/NOPB remains a valuable component for specific applications and legacy designs where its unique features are essential.