MIC33030 Datasheet, PDF (4/18 Pages) Micrel Semiconductor – 8MHz 400mA Internal Inductor Buck Regulator with HyperLight Load

Micrel Inc.
Typical Characteristics
90.0%
80.0%
Efficiency vs. Load
(VOUT = 2.5V)
VIN = 3.6V
70.0%
60.0%
VIN = 5V
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
0.1
1
10
100
1000
LOAD CURRENT (mA)
Efficiency vs. Load
(VOUT = 1.2V)
80.0%
70.0%
60.0%
50.0%
40.0%
VIN = 3V
VIN = 3.6V
VIN = 4.2V
30.0%
20.0%
10.0%
0.0%
0.1
1
10
100
1000
LOAD CURRENT (mA)
Quiescent Current vs. Temperature
(Not Switching)
30
28
26
24
22
20
18
16
14
12
10
-60 -40 -20
0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
90.0%
80.0%
Efficiency vs. Load
(VOUT = 1.8V)
VIN = 3V
70.0%
60.0%
VIN = 4.2V
50.0%
40.0%
VIN = 3.6V
30.0%
20.0%
10.0%
0.0%
0.1
1
10
100
1000
LOAD CURRENT (mA)
Efficiency vs. Load
(VOUT = 1V)
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
VIN = 3V
VIN = 3.6V
VIN = 4.2V
10.0%
0.0%
0.1
1
10
100
1000
LOAD CURRENT (mA)
Output Voltage vs. Input Voltage
1.9
1.875
1.85
1.825
1.8
IOUT = 20mA
1.775
IOUT = 120mA
1.75
1.725
1.7
2.5 3 3.5 4 4.5 5 5.5 6
VIN (V)
MIC33030
90.0%
Efficiency vs. Load
(VOUT = 1.5V)
80.0%
70.0%
60.0%
VIN = 3V
VIN = 4.2V
50.0%
40.0%
VIN = 3.6V
30.0%
20.0%
10.0%
0.0%
0.1
1
10
100
1000
LOAD CURRENT (mA)
Quiescent Current vs. Input Voltage
(Not Switching)
30
25
20
15
10
5
0
2.5
3.5
4.5
5.5
6.5
INPUT VOLTAGE (V)
Output Voltage vs. Output Current
1.9
1.875
1.85
1.825
1.8
1.775
1.75
1.725
1.7
1
VIN = 4.2V
VIN = 3V
VIN = 3.6V
10
100
IOUT (mA)
1000
February 2011
4
M9999-020311-C