REF3333集成电路（IC）的电压基准规格书PDF中文资料

REF3333属于集成电路（IC）的电压基准。由德州仪器制造生产的REF3333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。

1 Features

1• 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

2 Applications

• Portable Equipment

• Tablets and Smartphones

• Hard Disk Drives

• Sensor Modules

• Data Acquisition Systems

• Medical Equipment

• Test Equipment

3 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.