MIC33030 Datasheet, PDF (5/18 Pages) Micrel Semiconductor – 8MHz 400mA Internal Inductor Buck Regulator with HyperLight Load

Micrel Inc.
Typical Characteristics (Continued)
Output Voltage vs. Temperature
1.9
1.875
1.85
1.825
1.8
1.775
1.75
1.725
1.7
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
8
7.5
7
6.5
6
5.5
IOUT = 120mA
5
4.5
4
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Enable (ON) Voltage
vs. Input Voltage
1.2
1
0.8
0.6
0.4
Enable Voltage
vs. Temperature
1.2
VIN = 5.5V
VIN = 4.2V
1
0.8
VIN = 3.6V
0.6
VIN = 2.7V
0.4
0.2
0
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
0.2
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
MIC33030
10000
1000
Switching Frequency
vs. Load Current
VIN = 3.6V
100
10
VIN = 3V
1
VIN = 4.2V
0.1
0.01
0.001
0.01 0.1
1
10
100
LOAD CURRENT (mA)
1000
Current Limit vs. Input Voltage
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2 2.5 3 3.5 4 4.5 5 5.5 6
VIN (V)
February 2011
5
M9999-020311-C