mic4682 Micrel Semiconductor, mic4682 Datasheet - Page 4

• Manufacturer Part Number: mic4682
• Description: Mic4682 Precision Current Limit So-8 Superswitcher? Buck Regulator
• Manufacturer: Micrel Semiconductor

Test Circuit
Shutdown Input Behavior
Micrel, Inc.
June 2007
C1 (x2)
V
10µF
50V
IN
10M
R3
5
4
IN
SHDN
Current Limit Test Circuit
ISET
MIC4682
3
R
ISET
GND
SW
FB
2, 6, 7
8
1
ON
D1
B240A
0V
68µH
L1
R1
3.01k
R2
0.8V
Shutdown Hysteresis
1.25V
V
C2
220µF
10V
OUT
1.4V
4
2V
Constant-Current Constant-Voltage Accuracy
5.0
3.6
0
V
OUTPUT CURRENT (A)
IN(max)
OFF
0.90
10%
1.10
M9999-061507
MIC4682