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S-1121B51MC-N3KTFG

S-1121B51MC-N3KTFG Description

The S-1121B51MC-N3KTFG is a high-performance linear regulator IC designed by ABLIC Inc., a leading manufacturer in the power management integrated circuit (PMIC) domain. This regulator is specifically engineered to provide a fixed output voltage of 5.1V with a maximum output current of 150mA. It is housed in a compact SOT23-5 package, making it suitable for space-constrained applications. The device features a maximum input voltage of 6.5V and boasts a low dropout voltage of 0.26V at 100mA, ensuring efficient operation even under low input-to-output voltage differentials.

S-1121B51MC-N3KTFG Features

• Output Type: Fixed
• Voltage - Input (Max): 6.5V
• Current - Output: 150mA
• Voltage - Output (Min/Fixed): 5.1V
• Voltage Dropout (Max): 0.26V @ 100mA
• Current - Supply (Max): 65 µA
• Current - Quiescent (Iq): 1 µA
• PSRR: 70dB (1kHz)
• Control Features: Enable
• Protection Features: Over Current
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• RoHS Status: ROHS3 Compliant
• Product Status: Not For New Designs
• ECCN: EAR99
• HTSUS: 8542.39.0001

The S-1121B51MC-N3KTFG stands out due to its low quiescent current of just 1 µA, which is crucial for battery-operated devices where minimizing power consumption is essential. Its high power supply rejection ratio (PSRR) of 70dB at 1kHz ensures excellent noise filtering, making it ideal for sensitive analog circuits. The enable control feature provides additional flexibility, allowing the regulator to be turned on or off as needed, which can be particularly useful in power sequencing applications.

S-1121B51MC-N3KTFG Applications

The S-1121B51MC-N3KTFG is well-suited for a variety of applications where a reliable and efficient power supply is required. Its low dropout voltage and high PSRR make it an excellent choice for portable electronic devices, such as smartphones, tablets, and wearable technology. The regulator's compact form factor and surface-mount package also make it ideal for use in medical devices, where space and reliability are critical factors.

In addition to consumer electronics, the S-1121B51MC-N3KTFG can be employed in industrial applications, such as sensor modules and IoT devices, where stable power supply and low power consumption are paramount. Its overcurrent protection feature ensures robustness against short circuits and overloads, providing a safeguard for sensitive electronic components.

Conclusion of S-1121B51MC-N3KTFG

The S-1121B51MC-N3KTFG linear regulator from ABLIC Inc. offers a compelling combination of performance and efficiency, making it a valuable component for a wide range of power management applications. Its low dropout voltage, high PSRR, and low quiescent current provide significant advantages over similar models, ensuring reliable operation in even the most demanding environments. While it is marked as "Not For New Designs," the S-1121B51MC-N3KTFG remains a reliable choice for existing designs that require a stable, low-power, and compact linear regulator solution.