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TPS7A30

更新时间： 2024-10-04 11:06:31
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
23页 764K
描述
具有使能功能的 200mA、低噪声、高 PSRR、负电压、可调节低压降稳压器

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TPS7A30 数据手册

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TPS7A30xx  
www.ti.com  
SBVS125 –AUGUST 2010  
–36V, –200mA, Ultralow-Noise, Negative LINEAR REGULATOR  
1
FEATURES  
DESCRIPTION  
23  
•
Input Voltage Range: –3V to –36V  
The TPS7A30xx series of devices are negative,  
high-voltage (–36V), ultralow-noise (15.1mVRMS, 72dB  
•
Noise:  
PSRR) linear regulators capable of sourcing  
maximum load of 200mA.  
a
–
–
14mVRMS (20Hz to 20kHz)  
15.1mVRMS (10Hz to 100kHz)  
These  
logic-level-compatible  
linear  
regulators  
include  
a
pin  
CMOS  
and  
•
Power-Supply Ripple Rejection:  
enable  
–
–
72dB (120Hz)  
capacitor-programmable soft-start function that allows  
for customized power-management schemes. Other  
features available include built-in current limit and  
thermal shutdown protection to safeguard the device  
and system during fault conditions.  
≥ 55dB (10Hz to 700kHz)  
•
•
•
•
•
•
Adjustable Output: –1.18V to –33V  
Maximum Output Current: 200mA  
Dropout Voltage: 216mV at 100mA  
Stable with Ceramic Capacitors ≥ 2.2mF  
CMOS Logic-Level-Compatible Enable Pin  
The TPS7A30xx family is designed using bipolar  
technology, and is ideal for high-accuracy,  
high-precision instrumentation applications where  
clean voltage rails are critical to maximize system  
performance. This design makes it an excellent  
Built-In, Fixed, Current-Limit and Thermal  
Shutdown Protection  
choice  
to  
power  
operational  
amplifiers,  
•
•
Available in High Thermal Performance  
MSOP-8 PowerPAD™ Package  
analog-to-digital converters (ADCs), digital-to-analog  
converters (DACs), and other high-performance  
analog circuitry.  
Operating Tempature Range: –40°C to +125°C  
In addition, the TPS7A30xx family of linear regulators  
is suitable for post dc/dc converter regulation. By  
filtering out the output voltage ripple inherent to dc/dc  
switching conversion, maximum system performance  
is provided in sensitive instrumentation, test and  
measurement, audio, and RF applications.  
APPLICATIONS  
•
Supply Rails for Op Amps, DACs, ADCs, and  
Other High-Precision Analog Circuitry  
•
•
Audio  
Post DC/DC Converter Regulation and Ripple  
Filtering  
For applications where positive and negative  
high-performance rails are required, consider TI’s  
•
•
•
•
•
Test and Measurement  
RX, TX, and PA Circuitry  
Industrial Instrumention  
Base Stations and Telecom Infrastrucure  
–12V and –24V Industrial Buses  
TPS7A49xx  
family  
of  
positive  
high-voltage,  
ultralow-noise linear regulators.  
Typical Application  
DGN PACKAGE  
3mm ´ 5mm MSOP-8 PowerPAD  
(TOP VIEW)  
IN  
OUT  
+15V  
+18V  
TPS7A49  
1
2
3
4
OUT  
FB  
8
7
6
5
IN  
EN  
GND  
DNC  
NR/SS  
EN  
NC  
GND  
-18V  
IN  
OUT  
-15V  
TPS7A30  
EN GND  
EVM  
Post DC/DC Converter Regulation for  
High-Performace Analog Circuitry  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
PowerPAD is a trademark of Texas Instruments.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010, Texas Instruments Incorporated  
1234567...23

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