RP122数据手册集成电路（IC）的稳压器-线性规格书PDF

描述 Description

The RP122 is a LDO regulator that provides low output noise, high ripple rejection and fast response characteristics, achieved by low supply current. This device is suitable not only for noise-sensitive applications such as high-performance analog circuits, but also for various applications.

Key Benefits

• Achieves Low Noise, High PSRR and Fast Response.

• Provides Saving Space by Adopting of Small Package without Noise Bypass Capacitor.

• Provides Long-Duration of Operation for Battery-powered Equipment by Low Supply Current of 9.5 µA (Typ.), despite the low-noise LDO.

特性 Features

• Input Voltage Range (Max. Rating)：1.9 V to 5.25 V (6.0V)；
• Supply Current：Typ. 9.5 µA；
• Standby Current：Typ. 0.01 µA；
• Output Voltage Range：1.2 V to 4.8 V (0.1 V step)；
• Output Voltage Accuracy：±1.0% (VSET≥ 1.8 V), ±18 mV (VSET< 1.8 V)；
• Output Noise：Typ. 8 μVrms (IOUT = 250 mA)；
• Ripple Rejection：Typ. 90 dB (f = 1 kHz),Typ. 85 dB (f = 10 kHz),Typ. 65 dB (f = 100 kHz)；
• Dropout Voltage：Typ. 0.17 V (IOUT = 400 mA, VSET = 2.8 V, RP122K)；
• Thermal Shutdown Protection：Detection Temp. Typ. 165°C；
• Inrush Current Limit：Typ. 250 mA for appr. 700 µs period after start-up；
• Ceramic Capacitor (CIN, COUT)：1.0 µF or more；
• Packages：WLCSP-4-P8Under Development, DFN(PLP)1010-4；

应用 Application

• Mobile Phones and Tablets, Digital Cameras, Audio Devices, and Battery-powered Equipment
• RF Modules
• Clock Generator: VCO, PLL, etc.
• Noise-sensitive Devices: ADC, DAC

简介

RP122属于集成电路（IC）的稳压器-线性。由制造生产的RP122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。