Order this document by LM350/D
LM350
Three-Terminal Adjustable
Output Positive Voltage
Regulator
The LM350 is an adjustable three–terminal 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–out 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.
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Guaranteed 3.0 A Output Current
THREE–TERMINAL
ADJUSTABLE POSITIVE
VOLTAGE REGULATOR
SEMICONDUCTOR
TECHNICAL DATA
T SUFFIX
PLASTIC PACKAGE
CASE 221A
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Output Adjustable between 1.2 V and 33 V
Load Regulation Typically 0.1%
Line Regulation Typically 0.005%/V
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting Constant with Temperature
Output Transistor Safe Area Compensation
Floating Operation for High Voltage Applications
Standard 3–lead Transistor Package
Eliminates Stocking Many Fixed Voltages
1
2
3
Pin 1. Adjust
2. Vout
3. Vin
Heatsink surface is connected to Pin 2.
Simplified Application
Vin
vout
R1
240
IAdj
Cin*
0.1µF
R2
Adjust
+ C **
O
1µF
LM350
ORDERING INFORMATION
Device
* = Cin is required if regulator is located an appreciable distance from power supply filter.
** = CO is not needed for stability, however, it does improve transient response.
Vout
LM350T
LM350BT#
Operating
Temperature Range
TJ = 0° to +125°C
TJ = –40° to +125°C
Package
Plastic Power
Plastic Power
+
1.25 V 1
)
R2
)
IAdj R2
R1
Since IAdj is controlled to less than 100
µA,
the error associated with
this term is negligible in most applications.
# Automotive temperature range selections are
available with special test conditions and additional
tests. Contact your local Motorola sales office for
information.
©
Motorola, Inc. 1996
Rev 0
MOTOROLA ANALOG IC DEVICE DATA
1
MOTOROLA [ MOTOROLA, INC ]
