AMC DOC. #: AMC7580_E (LF)
AMC7580
Feb 2005
7A LOW DROPOUT REGULATOR
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage (Vpower)
7V
Input Voltage (Vcontrol)
13V
Operating Junction temperature
150
OC
Storage Temperature Range
-65
OC to 150 OC
Lead temperature (Soldering, 10 seconds)
300
OC
Note 1: 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.
POWER DISSIPATION TABLE
Package
θ
JA
(
OC/W )
Derating factor ( mW/
OC )
TA ≥ 25
OC
TA ≤ 25
OC
Power rating(mW)
TA=70
OC
Power rating(mW)
TA= 85
OC
Power rating (mW)
P
45
22.2
2775
1776
1443
PF
45
22.2
2775
1776
1443
DD
45
22.2
2775
1776
1443
DDF
45
22.2
2775
1776
1443
Note :
1.
θ
JA
: Thermal Resistance-Junction to Ambient, DF : Derating factor, Po: Power consumption.
Junction Temperature Calculation: T
J = T
A + (PD × θJA), Po = DF × ( Tj- TA)
The
θ
JA numbers are guidelines for the thermal performance of the device/PC-board system.
All of the above assume no ambient airflow.
2.
θJT: Thermal Resistance-Junction to Tab, TC: case(Tab) temperature, T
J = T
C + (PD × θJT)
For P and DD packages,
θJT = 3.0 OC / W.
3. If power consumption is over above rating, adequate heat sink is required to dissipate heat.
RECOMMENDED OPERATING CONDITIONS
Recommended Operating Conditions
Parameter
Symbol
Min.
Typ.
Max.
Units
VPOWER
2
7
Input Voltage (VIN)
VCONTROL
2.75
12
V
Load Current (with adequate heatsinking)
I
O
0.010
7
A
Input Capacitor (VIN to GND)
10
µF
Output Capacitor with ESR of 10
Ω max., (VOUT to GND)
33
µF
Copyright
© 2002, ADD Microtech Corp.
3
www.addmtek.com
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