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TPS71721DCKT

更新时间： 2024-11-23 06:01:15
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德州仪器 - TI 稳压器
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28页 929K
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Low Noise, High-Bandwidth PSRR Low-Dropout 150mA Linear Regulator

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TPS71721DCKT 数据手册

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TPS717xx  
www.ti.com ..................................................................................................................................................... SBVS068E–FEBRUARY 2006–REVISED MAY 2008  
Low Noise, High-Bandwidth PSRR  
Low-Dropout 150mA Linear Regulator  
1
FEATURES  
DESCRIPTION  
23  
•
150mA Low-Dropout Regulator with Enable  
The TPS717xx family of low-dropout (LDO),  
low-power linear regulators offers very high power  
supply rejection (PSRR) while maintaining very low  
50µA ground current in an ultra-small, five-pin SC70  
package. The family uses an advanced BiCMOS  
process and a PMOSFET pass device to achieve fast  
start-up, very low noise, excellent transient response,  
and excellent PSRR performance. The TPS717xx is  
stable with a 1.0µF ceramic output capacitor, and  
uses a precision voltage reference and feedback loop  
to achieve a worst-case accuracy of 3% over all load,  
line, process, and temperature variations. It is fully  
specified from TJ = –40°C to +125°C and is offered in  
a small SC70-5 package, a 2mm × 2mm SON-6  
package with a thermal pad, and a 1.5mm × 1.5mm  
SON package, which are ideal for small form factor  
portable equipment such as wireless handsets and  
PDAs.  
•
•
Low IQ: 50µA (typical)  
Available in Multiple Output Versions:  
–
Fixed Output with Voltages from 0.9V to  
5.0V Using Innovative Factory EEPROM  
Programming  
–
Adjustable Output Voltage from 0.9V to  
6.2V  
•
Ultra-High PSRR:  
–
70dB at 1kHz, 67dB at 100kHz and 45dB at  
1MHz  
•
•
•
•
•
Low Noise: 30µV typical (100Hz to 100kHz)  
Stable with a 1.0µF Ceramic Capacitor  
Excellent Load/Line Transient Response  
3% Overall Accuracy (over Load/Line/Temp)  
Over-Current and Over-Temperature  
Protection  
VIN  
VOUT  
IN  
OUT  
TPS717xx  
GND  
1mF  
Ceramic  
1mF  
Ceramic  
•
•
Very Low Dropout: 170mV Typical at 150mA  
EN  
NR  
Small SC70-5, 2mm x 2mm SON-6, and 1.5mm  
× 1.5mm SON-6 Packages  
VEN  
0.01mF  
(Optional)  
APPLICATIONS  
Typical Application Circuit for Fixed Voltage Versions  
•
•
•
Mobile Phone Handsets  
Wireless LAN, Bluetooth™  
PDAs and Smartphones  
80  
70  
60  
50  
40  
30  
20  
10  
0
150mA  
TPS717xx DCK  
SC70-5 PACKAGE  
(TOP VIEW)  
10mA  
1
2
3
5
4
OUT  
IN  
GND  
EN  
TPS717xx DSE  
1.5mm x 1.5mm SON  
(TOP VIEW)  
75mA  
NR/FB  
OUT  
GND  
1
2
3
6
5
4
IN  
N/C(1)  
TPS717xx DRV  
2mm x 2mm SON  
(TOP VIEW)  
COUT = 1mF  
CNR = 10nF  
NR/FB  
EN  
10  
100  
1k  
10k  
100k  
1M  
10M  
OUT  
NR/FB  
GND  
1
2
3
6
5
4
IN  
N/C(1)  
Frequency (Hz)  
GND  
NOTE: (1) N/C = Not connected.  
EN  
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
Bluetooth is a trademark of Bluetooth SIG, Inc.  
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 © 2006–2008, Texas Instruments Incorporated  
1234567...28

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TPS71721DCKT 替代型号

型号 品牌 替代类型 描述 数据表
TPS71721DCKR TI

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