Texas Instruments

LM1771TSD/NOPB

LM1771TSD/NOPB Description

The LM1771TSD/NOPB is a transistor driver designed for power management applications, specifically as a buck converter controller. Manufactured by Texas Instruments, this device is part of the Power Management Integrated Circuit (PMIC) category. It features a positive output configuration and a switching frequency range of 100kHz to 1MHz, making it suitable for applications requiring efficient power conversion. The LM1771TSD/NOPB operates within a supply voltage range of 2.8V to 5.5V and includes a synchronous rectifier for improved efficiency. Despite its obsolescence, it remains a reliable choice for specific power management needs.

LM1771TSD/NOPB Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Switching Frequency: 100kHz to 1MHz
• Supply Voltage (Vcc/Vdd): 2.8V to 5.5V
• Synchronous Rectifier: Yes
• Topology: Buck
• Control Features: Enable
• Output Phases: 1
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Compliance:
  • REACH Status: REACH Unaffected
  • RoHS Status: ROHS3 Compliant
  • Moisture Sensitivity Level (MSL): 1 (Unlimited)
  • ECCN: EAR99
  • HTSUS: 8542.39.0001

LM1771TSD/NOPB Applications

The LM1771TSD/NOPB is ideal for applications requiring a compact, efficient power management solution. Its buck topology and synchronous rectifier make it particularly suitable for:

• Power Supplies: Efficient conversion of higher input voltages to lower output voltages.
• Battery Chargers: Ensuring stable power delivery to batteries.
• Consumer Electronics: Providing power management in devices such as smartphones, tablets, and laptops.
• Industrial Equipment: Managing power in various industrial applications where efficiency and reliability are crucial.

Conclusion of LM1771TSD/NOPB

The LM1771TSD/NOPB, despite being marked as obsolete, continues to offer significant advantages in specific power management applications. Its wide switching frequency range, synchronous rectifier, and broad supply voltage range make it a versatile choice for designers seeking efficient power conversion. The device’s compliance with REACH and ROHS3 standards ensures it meets environmental and safety regulations. While newer models may offer additional features, the LM1771TSD/NOPB remains a reliable and efficient option for power management needs.