ON Semiconductort
3.0 A, Adjustable Output,
Positive Voltage Regulator
The LM350 is an adjustable three鈥搕erminal positive voltage
regulator capable of supplying in excess of 3.0 A over an output
voltage range of 1.2 V to 33 V. This voltage regulator is
exceptionally easy to use and requires only two external resistors to
set the output voltage. Further, it employs internal current limiting,
thermal shutdown and safe area compensation, making it essentially
blow鈥搊ut proof.
The LM350 serves a wide variety of applications including local,
on card regulation. This device also makes an especially simple
adjustable switching regulator, a programmable output regulator, or
by connecting a fixed resistor between the adjustment and output, the
LM350 can be used as a precision current regulator.
鈥?/div>
Guaranteed 3.0 A Output Current
鈥?/div>
Output Adjustable between 1.2 V and 33 V
鈥?/div>
Load Regulation Typically 0.1%
鈥?/div>
Line Regulation Typically 0.005%/V
鈥?/div>
Internal Thermal Overload Protection
鈥?/div>
Internal Short Circuit Current Limiting Constant with Temperature
鈥?/div>
Output Transistor Safe Area Compensation
鈥?/div>
Floating Operation for High Voltage Applications
鈥?/div>
Standard 3鈥搇ead Transistor Package
鈥?/div>
Eliminates Stocking Many Fixed Voltages
Simplified Application
LM350
THREE鈥揟ERMINAL
ADJUSTABLE POSITIVE
VOLTAGE REGULATOR
SEMICONDUCTOR
TECHNICAL DATA
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Pin 1. Adjust
2. V
out
3. V
in
1
2
3
Heatsink surface is connected to Pin 2.
ORDERING INFORMATION
Device
V
in
LM350
v
out
R
1
240
Adjust
+ C **
O
1碌F
LM350T
LM350BT#
Operating
Temperature Range
T
J
= 0擄 to +125擄C
T
J
= 鈥?0擄 to +125擄C
Package
Plastic Power
Plastic Power
I
Adj
C
in
*
0.1碌F
# Automotive temperature range selections are
available with special test conditions and additional
tests. Contact your local ON Semiconductor sales
office for information.
R
2
* = C
in
is required if regulator is located an appreciable distance from power supply filter.
** = C
O
is not needed for stability, however, it does improve transient response.
R
Vout
+
1.25V 1
)
2
)
IAdjR2
R1
Since I
Adj
is controlled to less than 100
碌A(chǔ),
the error associated with
this term is negligible in most applications.
漏
Semiconductor Components Industries, LLC, 2002
1
January, 2002 鈥?Rev. 2
Publication Order Number:
LM350/D
LM350BT相關(guān)型號(hào)PDF文件下載
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