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LR9193-2.8 PDF预览

LR9193-2.8

更新时间： 2025-09-09 12:01:31
品牌 Logo 应用领域
乐山 - LRC 稳压器
页数 文件大小 规格书
9页 802K
描述
300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator

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LR9193-2.8 数据手册

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LESHAN RADIO COMPANY, LTD.  
300mA Ultra-low Noise, Ultra-Fast  
CMOS LDO Regulator  
LR9193  
PCMCIA Cards  
MP3 Players  
Portable Information Appliances  
FEATURES  
Ultra-low Noise for RF Application  
Ultra-Fast Respose in Line/Load Transient  
Quick Start-Up (Typically 50S)  
<0.01A Standby Current When Shutdown.  
Low Dropout:220mV@300mA  
Wide Operating Voltage Ranges:2.5V to  
5.5V  
DESCRIPTION  
The LR9193 is designed for portable RF and  
wireless  
applications  
with  
demanding  
performance and space requirements. The  
LR9193 performance is optimized for battery-  
powered systems to deliver ultra low noise  
and low quiescent current. A noise bypass  
pin is available for further reduction of output  
noise. Regulator ground current increases  
only slightly in dropout, further prolonging the  
battery life. The LR9193 also works with low-  
ESR ceramic capacitors, reducing the  
amount of board space necessary for power  
applications, critical in hand-held wireless  
devices. The LR9193 consumes less than  
0.01μA in shutdown mode and has fast turn-  
on time less than 50μs. The other features  
include ultra low dropout voltage, high output  
accuracy, current limiting protection, and high  
ripple rejection ratio. Available in the 5-lead of  
SC-70,SOT-23,packages.  
TTL-logic-Controlled Shutdown Input  
Low Temperature Coefficient  
Current Limiting Protection  
Thermal Shutdown Protection  
Only 1F Output Capacitor Required for  
Stability  
High Power Supply Rejection Ratio  
Custom Voltage Available  
Fast output discharge  
Available in 5-Lead SOT-23 and SC-70  
Package  
APPLICATIONS  
Cellular and Smart Phones  
Battery-Powered Equipment  
Laptop, Palmtops,Notebook Computers  
Hand-Held Instruments  
ORDERING INFORMATION  
LR9193-XX XX  
TYPICAL APPLICATION  
1
2
3
5
4
Package:  
RN:SOT-23-5  
URN:SC-70-5  
3.3V-5.5V  
2.8V  
VIN  
GND  
EN  
VOUT  
C1  
1uF  
C2  
1uF  
LR9193  
0
0
0
0
Chip Enable  
BP  
R1  
100k  
C3  
22nF  
Output Voltage:  
0
12:1.2V  
18:1.8V  
33::3.3V  
15:1.5V  
28:2.8V  
CT: custom fixed output(50mv step)  
AD:Adjustable  
1/9  
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