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LR8K4-G Datasheet(PDF) 2 Page - Supertex, Inc

Part No. LR8K4-G
Description  High Input Voltage Adjustable 3-Terminal Linear Regulator
Download  9 Pages
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Maker  SUTEX [Supertex, Inc]
Homepage  http://www.supertex.com
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LR8K4-G Datasheet(HTML) 2 Page - Supertex, Inc

   
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2
LR8
Ordering Information
DEVICE
Package Option
TO-243AA
TO-252
TO-92
LR8
LR8N8-G
LR8K4-G
LR8N3-G
-G indicates package is RoHS compliant (‘Green’)
Absolute Maximum Ratings
Parameter
Value
V
IN input voltage (voltages ref to ADJ)
-0.5V to +480V
Output voltage range
-0.5V to +470V
Operating ambient temperature range
-40°C to +85°C
Operating junction temperature range
-40°C to +125°C
Storage temperature range
-65°C to +150°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent
damage to the device. These are stress ratings only, and functional operation of the
device at these or any other conditions beyond those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
Pin Configurations
Electrical Characteristics (Test conditions unless otherwise specified: -40°C < TA < 85°C.)
TO-252 (D-PAK)
(top view)
V
OUT
V
IN
ADJ
TO-243AA (SOT-89)
(top view)
V
IN
V
OUT
ADJ
V
OUT
V
IN
V
OUT
ADJ
TO-92
(front view)
Product marking for TO-243AA:
where
= 2-week alpha date code
LR8
Symbol
Parameter
Min
Typ
Max
Units
Conditions
V
IN - VOUT
Input to output voltage difference
12
-
450
V
---
V
OUT
Overall output voltage regulation
1.14
1.20
1.26
V
13.2V < V
IN< 400V,
R1 = 2.4KΩ, R2 = 0
V
OUT
Overall output voltage regulation
375
400
425
V
R1 = 2.4KΩ, R2 = 782KΩ
ΔV
OUT
Line regulation
-
0.003
0.01
%/V
17V < V
IN< 400V, VOUT = 5V,
I
OUT = 0.5mA
ΔV
OUT
Load regulation
-
1.4
3.0
%
V
IN = 17V, VOUT = 5V,
0.5mA <I
OUT< 10mA
ΔV
OUT
Temperature regulation
-1
-
+1
%
V
IN = 17V, VOUT = 5V, IOUT = 10mA,
-40°C < T
A < 85°C
I
OUT
Output current limit
10
-
30
mA
T
J < 85°C, VIN - VOUT = 12V
I
OUT
Output current limit
-
-
0.5
mA
T
J > 125°C, VIN - VOUT = 450V
I
OUT
Minimum output current
-
0.3
0.5
mA
Includes R1 and load current
I
ADJ
Adjust output current
5
10
15
µA
---
C2
Minimum output load capacitance
1
-
-
µF
---
DV
OUT/DVIN
Ripple rejection ratio
50
60
-
dB
120Hz, V
OUT = 5V
T
LIMIT
Junction temperature limit
125
-
-
°C
---
Product Marking


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