MIC2570
Micrel
Typical Characteristics
Switch Saturation Voltage
2.0
SWITCH CURRENT (A)
SWITCH CURRENT (A)
T
A
= –40°C
1.5
2.0
Switch Saturation Voltage
2.0
2.5V
V
IN
= 3.0V
2.0V
1.5V
SWITCH CURRENT (A)
T
A
= 25°C
1.5
Switch Saturation Voltage
T
A
= 85°C
1.5
V
IN
= 3.0V
1.5V
1.0
V
IN
= 3.0V
2.5V
1.0
1.0
0.5
1.5V
0
2.0V
0.5
0.5
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
0
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
0
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
Oscillator Frequency
vs. Temperature
30
OSC. FREQUENCY (kHz)
V
IN
= 2.5V
I
SW
= 100mA
25
75
70
65
60
55
Oscillator Duty Cycle
vs. Temperature
200
V
IN
= 2.5V
I
SW
= 100mA
QUIESCENT CURRENT (µA)
175
150
125
100
75
Quiescent Current
vs. Temperature
V
IN
= 2.5V
DUTY CYCLE (%)
20
4
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
= 2.5V
MIC2570-1
50
40
30
20
10
Feedback Current
vs. Temperature
200
V
IN
= 2.5V
MIC2570-2
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
SWITCH LEAKAGE CURRENT (nA)
Output Current Limit
vs. Temperature
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
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)
2.85V
1997
4-65
MICREL [ MICREL SEMICONDUCTOR ]
