MIC2295A Datasheet, PDF (5/9 Pages) Micrel Semiconductor – High Power Density 1.2A Boost Regulator

Micrel
Maximum Duty Cycle
vs. Supply Voltage
100
98
96
94
92
90
88
86
84
82
80
2.5 4 5.5 7 8.5 10
SUPPLY VOLTAGE (V)
FB Pin Current
vs. Temperature
700
600
500
400
300
200
100
0-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
MIC2295
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)
Line Transient Response
Switching Waveforms
Output Voltage
4.2V
Time (400µs/div)
3.2V
12V_OUT
150mA Load
3.6V_IN
12V_OUT
150mA
Enable Characteristics
V_IN = 3.6V
Inductor Current
(10µH)
V_SW
Time (400ns/div)
V_IN=3.6V
3.6V_IN
12VOUT
150mA Load
TIME (400µs/div.)
July 2004
M9999-052402
5
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