LP3984是TI公司的一款单通道LDO产品，LP3984是采用超小型 4 I/O 微型 DSBGA 封装的微功耗、150mA 超低压降 CMOS 电压稳压器，本页介绍了LP3984的产品说明、应用、特性等，并给出了与LP3984相关的TI元器件型号供参考。
LP3984 - 采用超小型 4 I/O 微型 DSBGA 封装的微功耗、150mA 超低压降 CMOS 电压稳压器 - 单通道LDO - 线性稳压器(LDO) - TI公司（Texas Instruments，德州仪器）
The LP3984 is designed for portable and wireless applications with demanding performance and space requirements.
The LP3984’s performance is optimized for battery powered systems to deliver extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.
Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.
The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA from a 2.5V to 6V input. The LP3984 consumes less than 1.2 µA in disable mode and has fast turn-on time less than 20 µs.
The LP3984 is available in a 4-bump DSBGA and 5-pin SOT-23 packages. Performance is specified for −40°C to +125°C temperature range and is available in 1.5V, 1.8V, 2.9V and 3.1V output voltages. For other output voltage options from 1.5V to 3.5V, please contact TI sales office.
- Miniature 4-I/O DSBGA or SOT-23-5 Package
- Logic controlled enable
- Stable with Tantalum Capacitors
- 1 µF Tantalum Output Capacitor
- Fast Turn-On
- Thermal Shutdown and Short-Circuit Current Limit
KEY SPECIFICATIONS
- 2.5 to 6.0V Input Range
- 150 mA Output
- 60 dB PSRR at 1 kHz, 40 dB at 10 kHz @ 3.1VIN
- ≤ 1.2 µA Quiescent Current when Shut Down
- Fast Turn-On Time: 20 µs (typ.)
- 75 mV typ Dropout with 150 mA Load
- −40 to +125°C Junction Temperature Range for Operation
- 1.5V, 1.8V, 2.9V and 3.1V
