REF3312中文资料采用 3 引脚 SOT-23、3 引脚 SC70 和 8 引脚 UQFN 封装的 1.25V、30ppm/°C 温漂、3.9µA 电压基准数据手册TI规格书

描述 Description

The REF33xx is a low-power, precision, low-dropout voltage reference family available in tiny SC70-3 and SOT-23-3 packages, and in a 1.5-mm × 1.5-mm UQFN-8 package. Small size and low power consumption (5-µA max) make the REF33xx ideal for a wide variety of portable and battery-powered applications.

The REF33xx can be operated at a supply voltage 180 mV above the specified output voltage under normal load conditions, with the exception of the REF3312, which has a minimum supply voltage of 1.7 V. All models are specified for the wide temperature range of –40°C to +125°C.

 

 

特性 Features

• Microsize Packages: SC70-3, SOT-23-3, UQFN-8
• Low Supply Current: 3.9 µA (typ)
• Extremely Low Dropout Voltage: 110 mV (typ)
• High Output Current: ±5 mA
• Low Temperature Drift: 30 ppm/°C (max)
• High Initial Accuracy: ±0.15% (max)
• 0.1-Hz to 10-Hz Noise: 35 µVPP (REF3312)
• Voltage Options: 1.2 V, 1.8 V, 2.5 V, 3 V, 3.3 V

简介

REF3312属于集成电路（IC）的电压基准。由TI制造生产的REF3312电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。