MIC23163 Datasheet, PDF (5/19 Pages) Micrel Semiconductor – 4MHz, 2A, 100% Duty Cycle Buck Regulator with HyperLight Load® and Power Good

Micrel, Inc.
Typical Characteristics
Efficiency vs. Output Current
V_OUT = 1.8V @ 25°C
95
V_IN = 3V
90
85
80
V_IN = 3.6V
V_IN = 5V
75
70
65
60
55
50
1
10
100
1000
OUTPUT CURRENT (mA)
10000
Efficiency vs. Output Current
V_OUT = 3.3V @ 25°C
100
95
V_IN = 4.2V
90
85
V_IN = 5V
80
75
70
65
60
55
50
1
10
100
1000
10000
OUTPUT CURRENT (mA)
Current Limit vs.
Input Voltage
3.8
3.6
3.4
3.2
3
2.8
2.6
2.5
T_CASE = 25°C
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Line Regulation
(Light Loads)
1.864
1.863
1.862
1.861
1.860
1.859
I_OUT = 30mA
1.858
1.857
1.856
1.855
I_OUT = 130mA
1.854
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Quiscent Current vs.
Input Voltage
50
45
40
35
30
25
20
2.5
T_CASE = 25°C
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Line Regulation
(High Loads)
1.870
1.868
1.866
1.864
I_OUT = 1A
1.862
1.860
1.858
1.856
1.854
I_OUT = 300mA
1.852
1.850
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
MIC23163/4
V_OUT Rise Time vs. C_SS
1000000
100000
10000
1000
100
10
1
1000
V_IN = 3.6V
10000
100000
C_SS (pF)
1000000
IQ vs. Temperature
50
48
46
44
42
40
38
36
34
32
30
-40 -20
V_IN = 3.6V
0 20 40 60 80 100 120
TEMPERATURE (°C)
Output Voltage vs.
Output Current (DCM)
1.820
1.815
1.810
1.805
1.800
1.795
1.790
0
V_IN = 3.6V
20 40 60 80 100 120 140 160 180 200
OUTPUT CURRENT (mA)
July 29, 2013
5
Revision 2.0