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LP3989 PDF预览

LP3989

更新时间: 2024-11-24 17:00:51
品牌 Logo 应用领域
微源半导体 - LOWPOWER /
页数 文件大小 规格书
8页 424K
描述
Shutdown,High PSRR

LP3989 数据手册

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Preliminary Datasheet  
LP3989  
600mA,Ultra-low noise, Small Package,  
Ultra-Fast CMOS LDO Regulator  
General Description  
Features  
The LP3989 is designed for portable RF and wireless  
applications with demanding performance and space  
requirements. The LP3989 performance is optimized  
for battery-powered systems to deliver ultra low noise  
and low quiescent current. Regulator ground current  
increases only slightly in dropout, further prolonging  
the battery life. The LP3989 also works with low-ESR  
ceramic capacitors, reducing the amount of board  
space necessary for power applications, critical in  
hand-held wireless devices. The LP3989 consumes  
less than 0.1µA in shutdown mode and has fast  
turn-on time less than 50µs. The other features include  
ultra low dropout voltage, high feedback accuracy,  
current limiting protection, and high ripple rejection  
ratio. It is available in the 5-lead of SOT23-5  
packages.  
Ultra-Low-Noise for RF Application  
2V- 6V Input Voltage Range  
Low Dropout : 280mV @ 400mA  
600mA Output Current, 750mA Peak Current  
High PSRR: -68dB at 1KHz  
< 1uA Standby Current When Shutdown  
Available in SOT23-5 Package  
Ultra-Fast Response in Line/Load transient  
Current Limiting and Thermal Shutdown  
Protection  
Applications  
Portable Media Players/MP3 players  
Cellular and Smart mobile phone  
LCD  
DSC Sensor  
Wireless Card  
Order Information  
Typical Application Circuit  
LP3989 □ □ □ □  
F: Pb-Free  
Vin  
Vout  
LP3989AB5F  
VIN  
4
3
OUT  
ADJ  
Package Type  
B5: SOT23-5  
2.2uF  
22pF  
2.2uF  
1
5
R1  
EN  
Chip Enable  
GND  
2
Output Type  
AAdjustable  
R2  
Marking Information  
Device  
Marking  
Package  
SOT23-5  
Shipping  
3K/REEL  
LP3989AB5F  
LP3989-02  
Dec.-2019  
Email: marketing@lowpowersemi.com  
www.lowpowersemi.com  
Page 1 of 8  

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