The NJW4188DL3T1 is a low dropout (LDO) voltage regulator manufactured by New Japan Radio (NJR). It is designed to provide a stable output voltage from a higher input voltage, even when the input voltage is close to the desired output voltage. This LDO regulator is characterized by its low quiescent current, high ripple rejection, and excellent transient response, making it suitable for a wide range of battery-powered and noise-sensitive applications.

Applications

• Battery-powered devices
• Portable electronics
• Wireless communication devices
• Microcontroller power supplies
• Noise-sensitive circuits
• Post-regulation for switching power supplies

Features

• Low dropout voltage (typically 150mV at 300mA)
• Low quiescent current (typically 45μA)
• High ripple rejection (70dB at 1kHz)
• Excellent transient response
• Overcurrent protection
• Overheat protection
• Fixed output voltage

Benefits

• Extended battery life due to low quiescent current
• Stable output voltage even with varying input voltage
• Reduced noise and ripple in the output voltage
• Protection against overcurrent and overheating
• Improved system reliability
• Simplified circuit design

Additional Details

The NJW4188DL3T1 features a low dropout voltage, allowing it to operate efficiently even when the input voltage is only slightly higher than the output voltage. The low quiescent current minimizes power consumption, extending battery life in portable applications. The high ripple rejection effectively filters out noise from the input voltage, providing a clean and stable output voltage. The overcurrent and overheat protection features protect the regulator from damage in case of excessive current or temperature. It is available in a small SOT-23-5 package. The output voltage is fixed, typically at 3.3V. The operating temperature ranges from -40°C to +85°C.

In summary, the NJW4188DL3T1 is a high-performance LDO voltage regulator that offers excellent performance and protection features, making it ideal for battery-powered and noise-sensitive applications.