MIC2290_07 Datasheet, PDF (4/13 Pages) Micrel Semiconductor – 2mm × 2mm PWM Boost Regulator with Internal Schotty Diode

Micrel, Inc.
Typical Characteristics
Efficiency at V_OUT = 12V
90
85
V_IN = 4.2V
80
75
70 ^VIN ^{= 3.6V}
65
60
V_IN = 3.3V
55
500
25 50 75 100
OUTPUT CURRENT (mA)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
02.5
Current Limit
vs. Supply Voltage
4 5.5 7 8.5 10
SUPPLY VOLTAGE (V)
October 2007
Switch Saturation Voltage
vs. Temperature
700
600
500
400
300
200
V_IN = 3.6V
100
I = 500mA
SW
0-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
Maximum Duty Cycle
vs. Temperature
99
97
95
93
91
89
87
V_IN = 3.6V
85-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
4
MIC2290
Frequency
vs. Temperature
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
FB Pin Current
vs. Temperature
700
600
500
400
300
200
100
0-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
M9999-101907