TL1963A中文资料具有反向电流和反向电压保护功能的 1.5A、20V 超低压降稳压器数据手册TI规格书

描述 Description

The TL1963A-xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 340 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. In addition to fast transient response, the TL1963A-xx regulators have very low output noise, which makes them ideal for sensitive RF supply applications.

Output voltage range is from 1.21 V to 20 V. The TL1963A-xx regulators are stable with output capacitance as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, 3.3 V, and as an adjustable device with a 1.21-V reference voltage.

特性 Features

• Optimized for Fast Transient Response
• Dropout Voltage: 340 mV
• 1-mA Quiescent Current
• Controlled Quiescent Current in Dropout
• Adjustable Output from 1.21 V to 20 V (TL1963A Only)
• Stable With 10-µF Ceramic Output Capacitor
• Reverse-Current Protection
• Industrial
• Radio-Frequency Systems
• Post Regulator for Switching Supplies

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简介

TL1963A属于集成电路（IC）的线性+开关稳压器。由TI制造生产的TL1963A稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。