peculiarity
Micro SMD and SOT-23-5 packages with micro 4 I/O
Logic control enablement
Tantalum capacitors are stable
1μF tantalum output capacitor
Quick on
Thermal shutdown and short-circuit current limiting
illustrate
The LP3984 is designed for portable and wireless applications with demanding performance and space requirements.
The LP3984 is optimized for performance, and the battery-powered system provides very low dropout and low quiescent current. The regulator's ground current only slightly increases dropouts, further extending battery life.
The power supply suppresses the lower frequency of 60 dB and begins to roll out 10 kHz. High power supply rejection is common in battery-powered circuits to maintain low input voltages to.
The device is ideal for mobile phones and battery-like wireless applications. It provides inputs from 2.5V to 6V up to 150 mA. The LP3984 consumes less than 1.2μA in disabled mode and has a fast on-on time of more than 20 microseconds.
The LP3984 is available in a 4-bump micro SMD and 5-pin SOT-23 package. Performance is available over a temperature range of -40°C to +125°C and is available in 1.5V, 1.8V, 2.0V, 2.9V, and 3.1V output voltages. For other output voltage options, from 1.5V to 3.5V, contact the National Semiconductor Sales Office.
Key specifications:
2.5至6.0V输入范围
150毫安保证输出
60分贝的PSRR在1kHz40分贝在10kHz@3.1V，IN
快速启动时间：20微秒（典型）
150毫安负载75mV典型辍学
-40至+125 ° C的结工作温度范围
1.5V，1.8V，2.0V，2.9V和3.1V
apply
CDMA cellular phone
Broadband CDMA cellular phones
GSM cellular phones
Portable information appliances