MIC2288 Micrel Semiconductor, MIC2288 Datasheet - Page 4

• Manufacturer Part Number: MIC2288
• Description: 1A 1.2 MHZ PWM BOOST CONVERTER IN THIN SOT 23 AND 2 X MLF
• Manufacturer: Micrel Semiconductor

MIC2288
Typical Characteristics
M9999-021904
700
600
500
400
300
200
100
100
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
91
89
87
85
83
81
79
77
75
98
96
94
92
90
88
86
84
82
80
1
0
0
2.5
2.5
0
0
Efficiency at V
Maximum Duty Cycle
25
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (V)
200
SWITCH CURRENT (mA)
SUPPLY VOLTAGE (V)
vs. Supply Current
vs. Supply Voltage
Switch Saturation
4
4
Current Limit
vs. Current
50
400
V
5.5
5.5
IN
= 3.6V
75
V
600
IN
OUT
7
7
100 125 150
V
V
= 3.3V
IN
IN
= 3.6V
= 12V
= 4.2V
800
8.5
8.5
1000
10
10
12.15
12.05
11.95
11.85
12.2
12.1
11.9
11.8
700
600
500
400
300
200
100
1.4
1.2
1.0
0.8
0.6
0.4
0.2
12
99
97
95
93
91
89
87
85
0
0
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
0
Maximum Duty Cycle
25
Switch Saturation
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
Load Regulation
vs. Temperature
vs. Temperature
vs. Temperature
Current Limit
50
LOAD (mA)
4
75
V
I
SW
IN
V
IN
100 125 150
= 3.6V
= 500mA
V
= 3.6V
IN
=
3.6V
1.30
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
300
250
200
150
100
700
600
500
400
300
200
100
1.4
1.3
1.2
1.1
1.0
0.9
0.8
50
0
0
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
2.5
vs. Supply Voltage
Feedback Voltage
SUPPLY VOLTAGE (V)
Switch Saturation
vs. Temperature
TEMPERATURE ( C)
4
TEMPERATURE ( C)
TEMPERATURE ( C)
vs. Temperature
vs. Temperature
FB Pin Current
Frequency
5.5
I
SW
7
February 2004
= 500mA
8.5
10
Micrel