MIC33263 Datasheet, PDF (5/19 Pages) Micrel Semiconductor – Buck Regulator with Integrated Inductor

Micrel, Inc.
Typical Characteristics
Efficiency
vs. Output Current
100
90
80
70
60
V_OUT = 2.5V
V_OUT = 1.8V
V_OUT = 1.2V
50
40
30
20
10
0
10
V_IN = 3.3V
100
1000
OUTPUT CURRENT (mA)
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.5
Current Limit
vs. Input Voltage
V_OUT = 2.4V
3
3.5
4
4.5
5
5.5
INPUT VOLTAGE (V)
2.006
2.005
2.004
2.003
2.002
2.001
2
1.999
2.5
Line Regulation
(Light Loads)
50mA
150mA
3
3.5
4
4.5
5
5.5
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
10
Efficiency
vs. Output Current
V_OUT = 2.5V
V_OUT = 1.8V
V_OUT = 3.3V
V_OUT = 1.2V
V_IN = 5V
100
1000
OUTPUT CURRENT(mA)
45
40
35
30
25
20
15
10
5
0
2.5
Quiscent Current
vs. Input Voltage
V_OUT = 2V
NO LOAD
3
3.5
4
4.5
5
5.5
VIN (V)
2.018
2.016
2.014
2.012
2.01
2.008
2.006
2.004
2.002
2
1.998
2.5
Line Regulation
(High Loads)
2A
500mA
300mA
3
3.5
4
4.5
5
5.5
INPUT VOLTAGE (V)
MIC33263/4
1000000
VOUT Rise Time
vs. CSS
100000
10000
1000
100
10
1
100
V_IN = 3.6V
1000 10000 100000 1000000
CSS (pF)
IQ vs. Temperature
40
38
36
34
32
30
28
26
V_IN = 3.6V
24
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Output Voltage
vs. Output Current (DCM)
2.08
2.07
2.06
2.05
2.04
2.03
2.02
2.01
2
1.99
1.98
1.97
1.96
0
V_IN = 3.6V
20 40 60 80 100 120 140 160 180 200
OUTPUT CURRENT (mA)
May 15, 2014
5
Revision 1.1