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LX8385A-33CDTT PDF预览

LX8385A-33CDTT

更新时间: 2024-11-22 23:48:55
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Analog IC

LX8385A-33CDTT 数据手册

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LX8385x-xx  
ꢁꢂꢃꢁꢂꢁꢄꢅꢆ  
3A Low Dropout Positive Regulators  
A
M I C R O S E M I  
C O M P A N Y  
PRODUCTION DATA SHEET  
Three-Terminal Adjustable Or  
Fixed Output  
The LX8385/85A/85B Series ICs are  
The LX8385/85A/85B Series devices are  
positive regulators designed to provide 3A pin-compatible with earlier 3-terminal  
output current. These regulators yield regulators, such as the 117 series products,  
higher efficiency than currently available but they do require input and output  
devices with all internal circuitry designed capacitors. A minimum 10µF capacitor is  
to operate down to a 1V input-to-output required on the input and a 15µF or greater  
differential. In each of these products, the on the output of these new devices for  
dropout voltage is fully specified as a stability. Although, these capacitors are  
function of load current. Dropout is generally included in most regulator designs.  
Guaranteed 1% Voltage  
Reference Accuracy Over Line,  
Load, And Temperature  
(LX8385B)  
Guaranteed < 1.5V Headroom At  
3A (LX8385)  
Guaranteed < 1.3V Headroom At  
3A (LX8385A/8385B)  
0.015% Line Regulation  
0.15% Load Regulation  
Mcrosemi  
.
guaranteed at  
a
maximum of 1.3V  
The LX8385/85A/85B Series quiescent  
(8385A/B) and 1.5V (8385) at maximum current flows into the load, thereby  
output current, decreasing at lower load increasing efficiency. This feature contrasts  
currents.  
with PNP regulators where up to 10% of the  
In addition, on-chip trimming adjusts the output current is wasted as quiescent  
reference voltage tolerance to 1% maximum current.  
at room temperature and 2% maximum over  
The LX8385-xxI is specified over the  
High Efficiency Linear  
Regulators  
Post Regulators For Switching  
Power Supplies  
the 0 to 125°C range for the LX8385A. The industrial temperature range of -25°C to  
LX8385B offers 0.8% tolerance at room 125°C, while the LX8385-xxC / 85A-xxC /  
temperature and 1.0% maximum over line, 85B-xxC is specified over the commercial  
load and temperature. Fixed versions are range of 0°C to 125°C.  
also available and specified in the Available  
Battery Chargers  
Constant Current Regulators  
Graphics & Standard Supplies  
Processor I/O Supply  
Low Voltage Memory & Chipset  
Supplies  
Options table below.  
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com  
IN  
OUT  
3.3V  
5V  
LX8385A  
at 3A  
+
LX8385/85A/85B-00  
LX8385/85A/85B-33  
LX8385/85A/85B-05  
Adjustable  
3.3V  
121Ω  
*1500µF  
1%  
6MV1500GX  
Sanyo  
ADJ  
+
1500µF  
2x 6MV1500GX  
Sanyo  
5.0V  
200Ω  
1%  
Table 1  
- Available Options  
Max Ref Max Dropout  
Plastic TO-220 Plastic TO-263  
DD  
3-Pin 3-Pin  
Plastic TO-252  
(D-Pak) 3-Pin  
TA (°C)  
DT  
P
Accuracy  
Voltage  
0 to 125  
2.0%  
2.0%  
1.0%  
1.5V  
1.3V  
1.3V  
1.5V  
LX8385-xxCDT  
LX8385A-xxCDT  
LX8385B-xxCDT  
LX8385-xxIDT  
LX8385-xxCP  
LX8385-xxCDD  
LX8385A-xxCDD  
LX8385B-xxCDD  
LX8385-xxIDD  
LX8385A-xxCP  
LX8385B-xxCP  
LX8385-xxIP  
-25 to 125 2.0%  
Note: Available in Tape & Reel.  
Append the letter “T” to the part number. (i.e. LX8385-xxCPT)  
Copyright 2000  
Rev. 2.0a, 2001-03-15  
Microsemi  
Page 1  
Linfinity Microelectronics Division  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  

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