鈥?/div>
Output Adjustable between 1.2 V and 37 V
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting Constant with Temperature
Output Transistor Safe鈥揂rea Compensation
Floating Operation for High Voltage Applications
Available in Surface Mount D2PAK, and Standard 3鈥揕ead Transistor
Package
Eliminates Stocking many Fixed Voltages
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface
connected to Pin 2.
1
2
3
Standard Application
Vin
LM317
R1
240
IAdj
Cin*
0.1
碌F
R2
Adjust
+ C **
O
1.0
碌F
Vout
Pin 1. Adjust
2. Vout
3. Vin
D2T SUFFIX
PLASTIC PACKAGE
CASE 936
(D2PAK)
1
2
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
ORDERING INFORMATION
**
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.
V out
Device
LM317BD2T
LM317BT
LM317D2T
LM317T
TJ = 0擄 to +125擄C
Operating
Temperature Range
TJ = 鈥?40擄 to +125擄C
Package
Surface Mount
Insertion Mount
Surface Mount
Insertion Mount
Rev 1
+
1.25 V 1
)
R2
)
IAdj R2
R
1
Since IAdj is controlled to less than 100
碌A(chǔ),
the error associated with this term is
negligible in most applications.
漏
Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
1