amc317sj ADDtek Corp, amc317sj Datasheet - Page 2

• Manufacturer Part Number: amc317sj
• Description: 1.2a 3-terminal Adjustable Regulator
• Manufacturer: ADDtek Corp

Copyright © 2006 ADDtek Corp.
Input-Output Differential Voltage V
Operating Junction temperature
Storage Temperature Range ………………………………………………………………………. -65°C to 150°C
Lead temperature (Soldering, 10 seconds) ………………………………………………………………….. 300°C
Note 1:
T, ST PACKAGE:
Junction Temperature Calculation: T
The θ
All of the above assume no ambient airflow.
Plastic (T, ST Package) …………………………………………………………………………………… 150°C
Thermal Resistance-Junction to Tab, θ
Thermal Resistance-Junction to Ambient, θ
Maximum Power Calculation:
The maximum power dissipation for a single-output regulator is :
P
D(MAX)
θ
JA
JA
P
(
T
D(MAX)
O
numbers are guidelines for the thermal performance of the device/pc-board system.
T
A
C/W): Junction-to-junction temperature thermal resistance of the package, and other heat dissipating materials.
J
(
(
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into,
negative out of the specified terminal.
= [(V
O
O
Where:
C): Maximum recommended junction temperature
C): Ambient temperature of the application
=
Then θ
IN(MAX)
T
J(MAX)
Note 1: C
Note 2: C
Note 3: V
V
I
I
V
OUT(NOM)
Q
JA
OUT(NOM)
IN(MAX)
= the quiescent current the regulator consumes at I
- V
= (150
– T
θ
JA
OUT(NOM)
C
0.1µF
A(MAX)
IN
OUT
OUT
V
= the maximum input voltage
IN
= the nominal output current, and
O
is required if the regulator is far from the filter capacitor.
= the nominal output voltage
IN
C – T
is recommended to improve the transient response.
= 1.25V
)] × I
ABSOLUTE MAXIMUM RATINGS (Note 1)
A
)/P
D
OUT(NOM)
D
J
= T
……………..…………………………………………………………..20V
JT
A
TYPICAL APPLICATION
ADJ
+ (P
AMC317
+ V
( 1 +
JA
THERMAL DATA
IN(MAX)
D
× θ
R2
R1
JA
× I
).
)
2
Q
+ I
ADJ
(R2)
R1
240Ω
R2
5K
OUT(MAX)
C
1µF
OUT
V
OUT
DD011_G -- MARCH 2007
AMC317
3.0°C /W
45°C /W