Micrel, Inc.
MIC4685
Typical Safe Operating Area (SOA)
(SOA measured on the MIC4685 Evaluation Board*)
5.0
T = 25°C
4.5
A
T = 125°C
4.0
J
D = Max
3.5
3.0
2.5
2.0
T
A
= 60°C
1.5
T
J
= 125
°C
1.0
D = Max
0.5
0.0
0 5 10 15 20 25 30 35
INPUT VOLTAGE (V)
Typical 5V Output SOA
Standard Configuration
Typical 3.3V Output SOA
Typical 2.5V Output SOA
OUTPUT CURRENT (A)
5.0
T = 25°C
4.5
A
T
J
= 125°C
4.0
D = Max
3.5
3.0
2.5
2.0
1.5
T
A
= 60°C
1.0
T
J
= 125
°C
0.5
D = Max
0.0
0 5 10 15 20 25 30 35
INPUT VOLTAGE (V)
Typical 1.8V Output SOA
Standard Configuration
Typical 5.0V Output SOA
Typical 3.3V Output SOA
OUTPUT CURRENT (A)
Typical 2.5V Output SOA
Typical 1.8V Output SOA
* I
OUT
<3A, D1: Diode Inc. B340 (3A/40V)
I
OUT
<3A, D1: SBM1040 (10A/40V)
January 2010
8
M9999-012610
MICREL [ MICREL SEMICONDUCTOR ]
