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TPS7A83A

更新时间: 2024-11-24 11:06:23
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德州仪器 - TI 稳压器
页数 文件大小 规格书
60页 5314K
描述
具有电源正常指示功能的 2A、低输入电压 (1.1V)、低噪声、高精度、超低压降稳压器

TPS7A83A 数据手册

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TPS7A83A  
SBVS304B – JUNE 2017 – REVISED OCTOBER 2021  
TPS7A83A 2-A, High-Accuracy (0.75%), Low-Noise (4.4 μVRMS) LDO Regulator  
1 Features  
3 Description  
Low dropout: 200 mV (max) at 2 A  
Accuracy over line, load, and temperature with  
BIAS: 0.75% (max)  
Output voltage noise:  
– 4.4 μVRMS at 0.8-V output  
Input voltage range:  
– Without BIAS: 1.4 V to 6.5 V  
– With BIAS: 1.1 V to 6.5 V  
TPS7A8300A output voltage range:  
– Adjustable operation: 0.8 V to 5.2 V  
– ANY-OUToperation: 0.8 V to 3.95 V  
TPS7A8301A output voltage range:  
– Adjustable operation: 0.5 V to 5.2 V  
– ANY-OUToperation: 0.5 V to 2.075 V  
Power-supply ripple rejection:  
– 40 dB at 500 kHz  
The TPS7A83A is a low-noise (4.4 μVRMS), low-  
dropout, linear regulator (LDO) capable of sourcing  
2 A with only 200 mV of maximum dropout. The  
TPS7A8300A output voltage is pin programmable  
from 0.8 V to 3.95 V with a 50-mV resolution, and  
adjustable from 0.8 V to 5.2 V using an external  
resistor divider. The TPS7A8301A output voltage is  
pin programmable from 0.5 V to 2.075 V with a 25-mV  
resolution, and adjustable from 0.5 V to 5.2 V using  
an external resistor divider.  
The combination of low noise  
, high PSRR,  
and high output current capability makes the  
TPS7A83A an excellent choice to power noise-  
sensitive components such as those found in high-  
speed communications, video, medical, or test  
and measurement applications. This device is  
designed for powering high-performance serializer  
and deserializer (SerDes), analog-to-digital converters  
(ADCs), digital-to-analog converters (DACs), and  
RF components because the high performance of  
the TPS7A83A limits power-supply-generated phase  
noise and clock jitter. Specifically, RF amplifiers  
benefit from the high-performance and 5.2-V output  
capability of the device.  
Excellent load transient response  
Adjustable soft-start inrush control  
Open-drain power-good (PG) output  
2 Applications  
Macro remote radio units (RRU)  
Outdoor backhaul units  
Active antenna system mMIMO (AAS)  
Ultrasound scanners  
Lab and field instrumentation  
Sensor, imaging, and radar  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (nom)  
3.50 mm × 3.50 mm  
5.00 mm × 5.00 mm  
TPS7A83A  
VQFN (20)  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
CBIAS  
Bias  
Supply  
1.2 VIN  
BIAS  
IN  
CIN  
TPS7A8300A: 0.9 VOUT  
TPS7A8301A: 0.55 VOUT  
PG  
OUT  
SNS  
FB  
EN  
RPG  
To Digital  
Load  
COUT  
NR/SS  
CNR/SS  
TPS7A8300(01)A  
1.6 V (0.8 V)  
CFF  
800 mV(400 mV)  
400 mV (200 mV)  
200 mV (100 mV)  
100 mV (50 mV)  
50 mV (25 mV)  
ANYOUT  
Used to set  
voltage  
GND  
Typical Application Circuit  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 

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