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MAX15029

更新时间： 2024-11-15 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
12页 837K
描述
1.425V至3.6V输入、500mA低压差稳压器，提供BIAS输入

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中文翻译

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MAX15029 数据手册

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MAX15029/MAX15030  
1.425V to 3.6V Input, 500mA Low-Dropout  
Regulators with BIAS Input  
General Description  
Features  
● 1.425V to 3.6V Input Voltage Range  
The MAX15029/MAX15030 low-dropout linear regulators  
operate from input voltages as low as 1.425V and deliver  
up to 500mA of continuous output current with a typical  
dropout voltage of only 40mV. The output voltage is adjust-  
● Output Voltage Programmable from 0.5V to V  
IN  
● Guaranteed Maximum 150mV Dropout for Standard  
Package and 190mV Dropout for Side-Wettable  
Package at 500mA Output Current  
able from 0.5V to V and is ±2% accurate over load and  
IN  
line variations, from -40°C to +125°C. The MAX15030  
features a BIAS input of 3V to 5.5V from an always-on  
power supply. The BIAS input current is reduced down to  
less than 2μA during the shutdown.  
● 2% Output Accuracy Over Load, Line, and  
Temperature  
● Stable with Ceramic Capacitors  
These regulators use small, 1μF ceramic input capacitors  
and 2.2μF ceramic output capacitors to deliver 500mA  
output current. High bandwidth provides excellent tran-  
sient response and limits the output voltage deviation to  
10mV for a 100mA to 500mA load step, with only a 2.2μF  
ceramic output capacitor, and the voltage deviations can  
be reduced further by increasing the output capacitor.  
● Fast Transient Response  
● 60μA Operating Bias Supply Current  
● 1.2μA Shutdown Bias Supply Current  
● Short-Circuit and Thermal Protection  
● -40°C to +125°C Operating Temperature Range  
● Soft-Start Limits Inrush Current  
These devices offer a logic-controlled shutdown input to  
● Thermally Enhanced 3mm x 3mm TDFN Package  
reduce input current (I ) consumption down to less than  
IN  
5.5μA in standby mode. Other features include a soft-  
start to reduce inrush current, short-circuit protection, and  
thermal-overload protection.  
Applications  
● Automotive (Dead-Man LDO)  
● Servers  
● Storage  
● Networking  
● Base Stations  
● Optical Modules  
● ATE  
The MAX15030 features a BIAS input allowing a  
secondary supply to keep the LDO’s internal circuitry  
alive if the voltage on IN goes to 0. Both devices are fully  
specified from -40°C to +125°C and are available in a  
10-pin thermally enhanced TDFN package (3mm x 3mm)  
that includes an exposed pad for optimal power dissipation.  
For a 1A version of these LDOs, refer to the MAX15027/  
MAX15028 data sheet.  
Ordering Information appears at end of data sheet.  
Typical Operating Circuits  
OUTPUT  
OUTPUT  
0.5V TO V  
0.5V TO V  
ALWAYS-ON INPUT  
3V TO 5.5V  
IN  
IN  
BIAS  
IN  
OUT  
OUT  
INPUT  
IN  
INPUT  
1.425V TO 3.6V  
1.425V TO 3.6V  
1µF  
1µF  
MAX15029  
MAX15030  
FB  
FB  
2.2µF  
2.2µF  
EN  
EN  
GND  
GND  
SS  
SS  
19-4586; Rev 5; 9/16  
1234567...12

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