NCV8570B数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The NCV8570Bis a 200 mA Low Dropout Linear Voltage Regulator with ultra low noise characteristics. It's low noise combined with high Power Supply Rejection Ratio (PSRR) make it especially suited for use in RF, audio or imaging applications. The device is manufactured in an advanced BiCMOS process to provide a powerful combination of low noise and excellent dynamic performance but with very low ground current consumption at full loads. The NCV8570B is stable with small, low value capacitors allowing designers to minimise the total PCB space occupied by the solution. The device is packaged in a small 2x2.2mm DFN6 package as well as in a TSOP-5 package.

特性 Features

• Operating Input Voltage Range: 2.5V to 5.5V
• Well suited for battery powered applications
• High Ripple Rejection Ratio: Typ. 82dB @ 1kHz
• Effectively filters the supply line noise
• Ultra-Low Output Noise: Typ. 10µVrms from 10Hz to 100kHz
• Very well suited for noise sensitive applications
• Stable with output capacitors as low as 1µF
• Small solution size
• Active Discharge
• Fast Turn-off
• Low Sleep Mode Current: Max. 1A
• Extends battery life is used in battery powered applications
• AECQ100 qualified and PPAP capable
• Suitable for Automtive applications
• Output Voltage Options: 1.8V, 2.8V, 3.0V, 3.3V
• Current Limit Protection
• Thermal Shutdown Protection
• Output Current Limit: Min. 200mA
• No-Load Ground Current of Typ. 70µA
• Full-Load Ground Current of Typ. 75µA
• Output voltage accuracy: ±2.5% over Load/Line Regulation and Temperature

应用 Application

• Audio/Video, RF Section Supply
• Noise Sensitive Applications such as RF receivers and transmiters
• GPS modules
• Portable/Build-In DVD Entertainment Systems
• Satellite and HD Radio
• Cameras for lane change detection and reverse view

简介

NCV8570B属于集成电路（IC）的线性+开关稳压器。由制造生产的NCV8570B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。