MIC23099 Datasheet, PDF (9/26 Pages) Micrel Semiconductor – Single AA/AAA Cell Step-Up/Step-Down Regulators

Micrel, Inc.
Typical Characteristics
Efficiency (V_IN = 1.2V)
vs. Output Current
100
BOOST
V_OUT1 = 1.8V
90
BUCK
80
V_OUT2 = 1.0V
70
60
50
40
0.001
LED Pin = OPEN
L1 = IFSC1515AHER6R8M01M
L2 = SPM4012T-4R7M
0.01
0.1 0.2
OUTPUT CURRENT (A)
Buck Efficiency (V_IN = 1.8V)
vs. Output Current
100
L2 = SPM4012T-4R7M
90
80
L2 = CIG2MW4R7NNE
70
60
50
40
0.001
V_IN = 1.8V
V_OUT2 = 1.0V
T_A = 25⁰C
0.01
0.03
OUTPUT CURRENT (A)
MIC23099
1.03
1.02
1.01
1
0.99
0.98
0.97
0
Buck Output Voltage
vs. Output Current
PFM
V_IN = 1.8V
V_OUT2 = 1.0V
T_A = 25⁰C
0.01
0.02
0.03
OUTPUT CURRENT (A)
Buck Load Regulation
vs. Output Current
1.0%
0.5%
0.0%
PFM
-0.5%
-1.0%
0
0.01
V_IN = 1.8V
V_OUT2 = 1.0V
T_A = 25⁰C
0.02
0.03
OUTPUT CURRENT (A)
Boost Output Voltage
vs. Output Current
1.84
1.83
1.82
1.81
PWM
1.80
1.79
1.78
1.77
1.76
1.75
0
PFM
0.04
0.08
V_IN = 1.2V
V_OUT1 = 1.8V
T_A = 25⁰C
0.12
0.16
0.2
OUTPUT CURRENT (A)
Boost Feeback Voltage
vs. Temperature
0.614
0.612
0.610
PFM
I_OUT1 = 100uA
0.608
0.606
0.604
0.602
0.600
PWM
I_OUT1 = 100mA
V_IN = 1.2V
T_A = 25⁰C
0.598
-50
-25 0 25 50 75
TEMPERATURE (°C)
100 125
Boost Output Voltage
vs. Output Current
2.0%
0.0%
PWM
-2.0%
PFM
-4.0%
0
0.04
0.08
V_IN = 1.2V
V_OUT1 = 1.8V
T_A = 25⁰C
0.12
0.16
0.2
OUTPUT CURRENT (A)
May 27, 2014
9
Revision 1.2