MIC2571
Micrel
Typical Characteristics
Switch Saturation Voltage
1.0
T
A
= –40°C
SWITCH CURRENT (A)
SWITCH CURRENT (A)
0.8
0.6
0.4
0.2
V
IN
= 1.0V
0
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
0
1.4V
1.3V
1.2V
1.1V
0.8
1.0
Switch Saturation Voltage
1.0
1.4V
T
A
= 25°C
0.6
0.4
0.2
1.1V
1.0V
V
IN
= 0.9V
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
1.3V
SWITCH CURRENT (A)
1.2V
0.8
0.6
Switch Saturation Voltage
1.4V
T
A
= 85°C
1.3V
1.2V
1.1V
1.0V
0.4
0.2
0
V
IN
= 0.9V
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
Oscillator Frequency
vs. Temperature
30
OSC. FREQUENCY (kHz)
V
IN
= 1.5V
I
SW
= 100mA
25
75
Oscillator Duty Cycle
vs. Temperature
200
QUIESCENT CURRENT (µA)
V
IN
= 1.5V
I
SW
= 100mA
175
150
125
100
75
Quiescent Current
vs. Temperature
V
IN
= 1.5V
DUTY CYCLE (%)
70
65
60
55
20
15
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
50
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
50
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Feedback Current
vs. Temperature
10
FEEDBACK CURRENT (µA)
FEEDBACK CURRENT (nA)
8
6
4
2
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
V
IN
= 1.5V
MIC2571-1
50
40
30
20
10
Feedback Current
vs. Temperature
200
V
IN
= 2.5V
MIC2571-2
QUIESCENT CURRENT (µA)
175
150
125
100
75
50
25
0
0
Quiescent Current
vs. Supply Voltage
–40°C
+25°C
+85°C
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
2
4
6
8
SUPPLY VOLTAGE (V)
10
1.75
1.50
CURRENT LIMIT (A)
1.25
1.00
0.75
0.50
0.25
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
SWITCH LEAKAGE CURRENT (nA)
Output Current Limit
vs. Temperature
Switch Leakage Current
vs. Temperature
1000
OUTPUT HYSTERESIS (mV)
100
10
1
0.1
0.01
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
150
125
100
Output Hysteresis
vs. Temperature
5V
3.3V
75
50
25
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
V
OUT
= 2.85V
MIC2571
4
1997
MIC [ MIC GROUP RECTIFIERS ]
