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

LP3984是TI德州仪器公司的一款单通道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，本站介绍了LP3984的封装应用图解、特点和优点、功能等，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) - 德州仪器

产品描述

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.

产品特性

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

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