MIC2101_13 Datasheet, PDF (11/36 Pages) Micrel Semiconductor – 38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control

Micrel, Inc.
Typical Characteristics (Continued)
V_IN Shutdown Current
vs. Input Voltage
30
24
18
12
6
VEN = 0V
0
4
9 14 19 24 29 34 39
INPUT VOLTAGE (V)
800
750
700
650
600
550
500
450
400
350
300
250
200
5
Switching Frequency
vs. Input Voltage
VOUT = 3.3V
IOUT = 2A
10 15 20 25 30 35
INPUT VOLTAGE (V)
V_DD Voltage
vs. Input Voltage
10
8
IDD = 10mA
6
4
VOUT = 3.3V
IDD = 40mA
fSW = 600kHz
2
0
4
9
14 19 24 29 34 39
INPUT VOLTAGE (V)
Output Peak Current Limit
vs. Input Voltage
25
20
15
10
VOUT = 3.3V
fSW = 600kHz
5
0
5
10 15 20 25
30 35
INPUT VOLTAGE (V)
V_IN Shutdown Current
vs. Temperature
15
VIN =12V
12
VEN = 0V
IOUT = 0A
9
6
3
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-50
V_DD Voltage
vs. Temperature
IDD = 10mA
IDD = 40mA
VIN = 12V
IOUT = 0A
-25 0 25 50 75 100 125
TEMPERATURE (°C)
MIC2101/02
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
4
Enable Threshold
vs. Input Voltage
RISING
FALLING
HYST
9 14 19 24 29 34 39
INPUT VOLTAGE (V)
800
750
700
650
600
550
500
450
400
350
300
250
200
5
Switching Frequency
vs. Input Voltage
VOUT = 1.2V
IOUT = 2A
10
15
20
25
30
35
INPUT VOLTAGE (V)
V_DD UVLO Threshold
vs. Temperature
5.0
VIN =12V
4.5
IOUT = 0A
RISING
4.0
FALLING
3.5
3.0
2.5
2.0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
November 13, 2013
11
Revision 2.0