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UP8801SDDA

更新时间： 2024-01-10 00:46:25
品牌 Logo 应用领域
力智 - UPI /
页数 文件大小 规格书
15页 198K
描述
3A Ultra Low Dropout Linear Regulator

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UP8801SDDA 数据手册

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uP8801S  
3A Ultra Low Dropout Linear Regulator  
Features  
General Description  
The uP8801S is a 3A ultra low dropout linear regulator † Works with 1.2V~5.5V VIN  
specifically designed for motherboard, notebook and graphic  
„ Adjustable Output Voltage, Down to 0.8V  
„ 1.5% Initial Accuracy  
card applications. This device works with dual supplies, a  
control input for the control circuitry and a power input as  
low as 1.2V for providing current to output. The uP8801S  
delivers high-current and ultra-low-drop output voltage as  
low as 0.8V for applications where VOUT is very close to  
VIN.  
„ Excellent Line and Load Regulation  
† 3A Guaranteed Output Current  
„ 300mV @ 3A Dropout Voltage  
† Very Low On-Resistance  
The uP8801S features comprehensive control and  
protection functions: a power on reset (POR) circuit for  
monitoring both control and power inputs for proper  
operation; an ENinput for enabling or disabling the device,  
a power OK with time delay for indicating the output voltage  
status, a foldback current limit function, and a thermal  
shutdown function.  
„ 100mΩ typical  
† VOUT Pull Low Resistance when Disabled  
† VOUT Power OK Signal  
† Fast Transient Response  
† Low External Component Count  
† Low Cost and Easy to Use  
The uP8801S is available in PSOP - 8Lor WDFN3x3 - 10L  
packages with very low thermal resistance.  
† Over Current and Over Temperature Protection  
† RoHS Compliant and Halogen Free  
Applications  
Ordering Information  
† Desktop PCs, Notebooks, and Workstations  
† Graphic Cards  
Order Number  
uP8801SSW8  
uP8801SDDA  
Package  
PSOP-8L  
Top Marking  
uP8801S  
† Low Voltage Logic Supplies  
† Microprocessor and Chipset Supplies  
† Split Plane Microprocessor Supplies  
† Advanced Graphics Cards Supplies  
† SoundCards and Auxiliary Power Supplies  
† SMPS Post Regulators  
WDFN3x3-10L  
uP8801S  
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.  
Pin Configuration & Typical Application Circuit  
5VCC  
POK  
EN  
1
2
3
4
8
7
6
5
GND  
FB  
R4  
10R  
CNTL  
4
GND  
EN  
POK  
VOUT  
FB  
VIN  
VOUT  
NC  
2
3
5
1
6
7
R3  
CNTL  
10K  
VOUT  
VIN  
VIN  
PSOP-8L  
R2  
12.5K  
C4  
option  
C1  
1uF  
VOUT  
VOUT  
VOUT  
FB  
1
2
3
4
5
10 CNTL  
NC  
C3  
100uF  
9
8
7
6
VIN  
VIN  
VIN  
EN  
R1  
10K  
C2  
22uF  
9
GND  
GND  
POK  
WDFN3x3-10L  
uP8801S-DS-F0000, Dec. 2014  
www.upi-semi.com  
1
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