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RAA214020

更新时间： 2024-11-30 14:57:19
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
46页 2715K
描述
5.5V 2A Ultra Low Noise, High PSRR, LDO

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RAA214020 数据手册

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Datasheet  
RAA214020  
Ultra Low Noise, High PSRR, LDO  
The RAA214020 is an ultra-low noise, high-PSRR,  
low-dropout voltage regulator. The LDO operates  
from an input voltage range of 2.7V to 5.5V and can  
source a maximum 2A load. The output is adjustable  
with external feedback resistors anywhere from 0.9V  
Features  
▪ Input Voltage Range: 2.7V to 5.5V  
▪ Max Output Current: 2A  
▪ Max Dropout Voltage: 540mV at 2A and 3.3 V  
OUT  
up to 5.5V-V  
.
▪ Low RMS output noise: 6.3µV  
(10Hz to  
DROPOUT  
RMS  
100kHz)  
The RAA214020 has a low output noise of 6.3µV  
RMS  
▪ Output Voltage Adjustable: 0.9V to 5.5V-V  
▪ Noise Spectral Density:  
• 184nV/√Hz at 10Hz  
DROPOUT  
typical and high PSRR which makes it well-suited for  
post-regulation in low-noise applications.  
The operating quiescent current is typically 195µA  
and drops to a couple nanoamps typical at room  
temperature when in shutdown making it great for  
portable applications.  
• 79nV/√Hz at 10kHz  
▪ High PSRR for V  
= 1.7V:  
HEADROOM  
• 100kHz: 64dB at 2A and 77dB at 500mA  
• 1MHz: 50dB at 2A and 55dB at 500mA  
The LDO features ±1.5% output voltage accuracy  
(over line, load, and temperature), input UVLO with  
hysteresis, enable control, internal current limit,  
thermal shutdown protection with hysteresis,  
power-good indication, and fast start-up.  
▪ Output Voltage Accuracy: ±1.5% over line, load,  
and temperature  
▪ Fast start-up: 200µs at V  
= 3.7V  
HEADROOM  
▪ Typical shutdown current: 200nA at 125°C  
The LDO is stable with a minimum 22µF ceramic  
output capacitor and is available in a 10 Ld  
3mmx3mm DFN package great for compact system  
boards.  
▪ Overvoltage indication, and overcurrent and  
over-temperature fault protection  
Applications  
▪ High Speed Analog: VCO, ADC, DAC, LVDS  
▪ Clock and Timing  
▪ RF and Wireless  
▪ IoT and Smart Utilities  
▪ 4G and 5G Telecom  
V
3.3V,  
V
OUT  
IN  
VIN  
VIN  
EN  
VO UT  
VO UT  
GND  
CSET  
FB  
2.7V – 5.5V  
I
2A  
OUT(MAX)  
10kΩ  
26.7kΩ  
10kΩ  
PG  
0.1µF  
10µF  
0.1µF  
22µF  
GND  
V
PG  
RAA214020  
1µF  
Figure 1. Typical Application Circuit  
R16DS0062EU0201 Rev.2.01  
Dec 17, 2021  
Page 1  
© 2021 Renesas Electronics  
1234567...46

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