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MAX38912 PDF预览

MAX38912

更新时间: 2023-12-20 18:46:06
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
18页 1640K
描述
具有低功耗模式的11μVRMS低噪声、500mA LDO线性稳压器使用封装代码/封装变体T822+3C

MAX38912 数据手册

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11µV  
Low-Noise, 500mA LDO Linear  
MAX38911/MAX38912  
RMS  
Regulators with Low-Power Mode  
General Description  
Benefits and Features  
The MAX38911/MAX38912 are low-noise, high-PSRR  
PMOS linear regulators that deliver up to 500mA load  
Delivers Wide, Flexible Operating Range  
1.7V to 5.5V Input Supply Range  
0.8V to 5.0V Output Voltage Range  
500mA Maximum Output Current  
24.3mV Dropout at 500mA Load and 5.0V Input  
Voltage  
current with only 11µV  
of output noise from 10Hz to  
RMS  
100kHz.  
The regulators are fully protected from damage by  
internal circuitry that provides programmable inrush  
current limiting, output overcurrent limiting, reverse  
current limiting, and thermal overload protection.  
19.2µA No-Load Supply Current in Low-Power  
Mode  
332µA Supply Current in Normal Mode  
<1µA Shutdown Supply Current  
The MAX38911 is available in WLP and TDFN packages  
and are default factory preprogrammed to an output  
voltage of 1.8V. Custom fixed-output voltage levels in  
the range of 0.8V to 5.0V in 50mV steps are also  
available, see Ordering Information.  
Reduces Noise and Improves Accuracy  
11µV  
Output Noise, 10Hz to 100kHz  
RMS  
70dB PSRR at 10kHz, 250mA Load Current, and  
300mV Input and Output Voltage Separation  
±1% DC Accuracy over Load, Line,  
and Temperature Variations  
MAX38912 provides enhanced flexibility with adjustable  
output voltage in the range of 0.8V to 5.0V by using two  
external feedback resistors.  
Enables Ease-of-Use and Robust Protection  
Stable with 2µF (Minimum Effective) Output  
Capacitance  
Programmable Soft-Start Rate  
Overcurrent and Overtemperature Protection  
Reverse-Current Protection  
The MAX38911ANT is packaged in a 1.42mm x  
0.83mm, 3 x 2, 6-bump, 0.4mm pitch WLP, while the  
MAX38911ATA and MAX38912ATA are packaged in a  
8-pin, 2mm x 2mm TDFN.  
Applications  
Power-OK Output  
Mobile Phones  
Reduces Size and Improves Reliability  
1.42mm x 0.83mm, 3 x 2, 6-Bump, 0.4mm Pitch  
WLP  
2mm x 2mm, 8-Pin TDFN Package  
-40°C to +125°C Operating Temperature  
Digital Camera and Audio Devices  
Portable and Battery-Powered Equipment  
High-Performance Sensors for Portable  
Applications  
IOT Sensors  
Imaging and High-Frequency Sensors  
Ordering Information appears at end of data sheet  
Application Diagram  
OUT  
IN  
IN  
OUT  
BYP  
PREPROGRAMMED  
TO 1.8V UPTO 0.5A  
2.1V TO 5.5V  
C1  
4.7µF  
C2  
10nF  
C3  
4.7µF  
GND  
MAX38911  
WLP  
ACTIVE-HIGH  
ENABLE  
EN  
NORMAL  
MODE  
LPM  
19-100886; Rev 1; 8/21  
© 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2021 Analog Devices, Inc. All rights reserved.  

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