STMicroelectronics

LD2985BM27R

LD2985BM27R Description

The LD2985BM27R is a high-performance linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of 2.7V and a maximum output current of 150mA. This regulator is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. With a maximum input voltage of 16V, the LD2985BM27R ensures reliable operation across a wide range of input conditions. The regulator features a low dropout voltage of 0.575V at 150mA, which is crucial for maintaining efficiency in low-input voltage scenarios.

LD2985BM27R Features

• Output Type: Fixed
• Voltage - Input (Max): 16V
• Current - Output: 150mA
• Number of Regulators: 1
• Output Configuration: Positive
• Current - Supply (Max): 4mA
• Product Status: Obsolete
• REACH Status: REACH Unaffected
• Mfr: STMicroelectronics
• Voltage - Output (Min/Fixed): 2.7V
• Voltage Dropout (Max): 0.575V @ 150mA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Current - Quiescent (Iq): 150µA
• PSRR: 45dB (1kHz)
• ECCN: EAR99
• Mounting Type: Surface Mount
• Control Features: Enable
• Protection Features: Over Current, Over Temperature
• HTSUS: 8542.39.0001
• Package: Tape & Reel (TR)
• Base Product Number: LD2985

The LD2985BM27R stands out with its low quiescent current of 150µA, which is essential for applications requiring low power consumption. The regulator also provides excellent power supply rejection ratio (PSRR) of 45dB at 1kHz, ensuring stable output voltage even in the presence of input voltage fluctuations. Additionally, the LD2985BM27R includes enable control, allowing for dynamic power management and further enhancing its efficiency.

LD2985BM27R Applications

The LD2985BM27R is well-suited for a variety of applications where a stable and efficient power supply is required. Its compact size and low dropout voltage make it ideal for portable electronic devices, such as smartphones, tablets, and wearable technology. The regulator's low quiescent current and high PSRR also make it suitable for battery-powered systems where power efficiency and voltage stability are critical.

In addition to consumer electronics, the LD2985BM27R can be used in industrial applications, such as sensors and IoT devices, where reliable power supply and small form factor are important considerations. The regulator's over current and over temperature protection features ensure robustness and reliability in demanding environments.

Conclusion of LD2985BM27R

The LD2985BM27R from STMicroelectronics is a versatile and efficient linear voltage regulator that offers a fixed 2.7V output with a maximum current of 150mA. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications requiring stable power supply and efficient power management. Despite being marked as obsolete, the LD2985BM27R remains a reliable option for designers looking for a compact and high-performance regulator. Its compliance with REACH and RoHS3 standards ensures that it meets environmental and safety regulations, making it a responsible choice for modern electronics.