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UP8808

更新时间： 2024-02-01 22:35:02
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力智 - UPI /
页数 文件大小 规格书
16页 294K
描述
Ultra Low Noise, Fast Response, High PSRR 1A Low Dropout Linear Regulator

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uP8808  
Ultra Low Noise, Fast Response, High PSRR  
1A Low Dropout Linear Regulator  
Features  
General Description  
The uP8808 is an ultra low noise, fast response, high power † Wide Input Voltage Range from 2.5 to 5.5V  
supply rejection ratio (PSRR) low dropout regulator  
specifically designed to continuously deliver up to 1A output  
current. Designed with a P-channel MOSFET series pass  
transistor, the uP8808 yields extremely low dropout voltage  
(e.g. 240mV at 1A) and maintains very low ground current  
(200uA).  
† Ultra Low Dropout Voltage: 240mV @ 1A  
† High Power Supply Rejection Ratio  
„
„
60dB at 100Hz  
40dB at 100kHz  
† Ultra Low Output Noise Voltage: 100uV(RMS)  
† Ultra Fast Response to Line/Load Transient  
† Low Ground Current: 200uA  
The uP8808 is designed and optimized to work with low-  
value, low-cost ceramic capacitors. Only a 10uF ceramic  
output capacitor is required for stable operation for any load  
conditions, ideal suitable for portable RF and wireless  
applications where PCB size are specially concerned. A  
bypass pin is provided to reduce output noise voltage and  
improve PSRR to 40dB at 100kHz.  
† Low Shutdown Current: < 1uA  
† Foldback Output Current Limit  
† High Output Accuracy  
„
„
1.5% Initial Accuracy  
Other features include foldback overcurrent protection, quick  
soft start, and overtemperature protection. The uP8808 is  
available in fixed output voltage from 0.8V to 3.3V with  
0.1V per step. The device comes in PSOP-8L, SOT23-5L,  
TSOT223-3L, WDFN3x3-8Land VQFN5x5-24L packages.  
Fixed Output Voltages: 0.8V to 3.3V with 0.1V  
Per Step  
† Over-Temperature Protection  
† RoHS Compliant and Halogen Free  
Applications  
Ordering Information  
† Cellular and Cordless Phones  
† Bluetooth Portable Radios and Accessaries  
† Battery-Powered Equipments  
† Laptop, Palmtops, Notebook Computers  
† Hand-Held Instruments  
Order Number  
uP8808PSU8-XX  
uP8808AMA5-XX  
uP8808AJA3-XX  
uP8808BJA3-XX  
uP8808AJT3-XX  
uP8808BJT3-XX  
Package  
PSOP-8L  
SOT23-5L  
Top Marking  
uP8808PXX  
SA8AXX  
SA9AXX  
SOT223-3L  
SA9BXX  
† PCMCIA Cards  
N66AXX  
† Portable Information Appliances  
TSOT223-3L  
N66BXX  
uP8808PDE8-XX WDFN3x3-8L  
uP8808PQBG-XX VQFN5x5-24L  
XX: 00: Adjustable Output Voltage  
8808PXX  
uP8808PXX  
08: 0.8V; 10: 1.0V; 12: 1.2V; 15: 1.5V; 18: 1.8V;  
25: 2.5V; 33: 3.3V, 1L: 1.34V  
Status:  
In Production: uP8808PSU8-00  
Others: Please check the sample/production availability  
with uPI representatives  
Note:  
(1) Please check the sample/production availability with  
uPI representatives.  
(2) uPI products are compatible with the current IPC/JEDEC  
J-STD-020 requirement. They are halogen-free, RoHS  
compliant and 100% matte tin (Sn) plating that are suitable  
for use in SnPb or Pb-free soldering processes.  
uP8808-DS-F0000, Jan. 2015  
www.upi-semi.com  
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