MIC2570
Micrel, Inc.
Typical Characteristics
2.0
SWITCH CURRENT (A)
1.5
1.0
0.5
0
Switch Saturation Voltage
SWITCH CURRENT (A)
2.0
1.5
1.0
0.5
0
Switch Saturation Voltage
T
A
= 25°C
2.0
SWITCH CURRENT (A)
1.5
1.0
0.5
0
Switch Saturation Voltage
T
A
= 85°C
T
A
= –40°C
2.5V
V
IN
= 3.0V
V
IN
= 3.0V
1.5V
2.0V
V
IN
= 3.0V
2.5V
1.5V
1.5V
0
2.0V
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
0
0.2
0.4
0.6
0.8
SWITCH VOLTAGE (V)
1.0
30
OSC. FREQUENCY (kHz)
Oscillator Frequency
vs. Temperature
V
IN
= 2.5V
I
S W
= 100mA
75
70
65
60
55
Oscillator Duty Cycle
vs. Temperature
QUIESCENT CURRENT (µA)
25
DUTY CYCLE (%)
V
IN
= 2.5V
I
S W
= 100mA
200
175
150
125
100
75
Quiescent Current
vs. Temperature
V
IN
= 2.5V
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)
10
FEEDBACK CURRENT (µA)
8
6
4
2
Feedback Current
vs. Temperature
V
IN
= 2.5V
MIC2570-1
50
FEEDBACK CURRENT (nA)
40
30
20
10
Feedback Current
vs. Temperature
QUIESCENT CURRENT (µA)
200
175
150
125
100
75
50
25
0
0
Quiescent Current
vs. Supply Voltage
–40°C
V
IN
= 2.5V
MIC2570-2
+25°C
+85°C
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
2
4
6
8
SUPPLY VOLTAGE (V)
10
SWITCH LEAKAGE CURRENT (nA)
1.75
1.50
CURRENT LIMIT (A)
1.25
1.00
0.75
0.50
0.25
Output Current Limit
vs. Temperature
1000
100
10
1
0.1
Switch Leakage Current
vs. Temperature
OUTPUT HYSTERESIS (mV)
150
125
100
75
50
25
Output Hysteresis
vs. Temperature
5V
3.3V
2.85V
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
0.01
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
MIC2570
4
August 2007
MICREL [ MICREL SEMICONDUCTOR ]
