Micrel, Inc.
MIC2810
Typical Characteristics
―
DC/DC LOWQ Mode (/LOWQ = GND)
80
70
60
50
40
30
V
IN
= 3.6V
20 V
OUT
= 1.2V
C
OUT
= 2.2µF
10 I
OUT
= 5mA
/LowQ = GND
0
0.01 0.1
1
10
100
FREQUENCY (kHz)
Power Supply
Rejection Ratio
Load Regulation
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1000
1.16
0
C
OUT
= 2.2µF
V
IN
= 3.6V
/LowQ = GND
10 20 30 40 50 60 70 80
OUTPUT CURRENT (mA)
1.15
1.20
1.25
1.30
Line Regulation
1.10
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE (V)
C
OUT
= 2.2µF
V
IN
= 3.6V
I
OUT
= 20mA
/LowQ = GND
380
340
300
260
220
180
140
100
60
Current Limit
vs. Input Voltage
10
Output Noise
Spectral Density
1
0.1
/LowQ = GND
20
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE (V)
0.01 V
IN
= 4.2V
V
OUT
= 1.2V
C
OUT
= 2.2µF
/LowQ = GND
0.001
0.01 0.1
1
10 100 1,000 10,000
FREQUENCY (kHz)
April 2007
8
M9999-041107-B