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EN2342QI Datasheet, PDF (17/23 Pages) Altera Corporation – 4A PowerSoC Voltage Mode Synchronous PWM Buck with Integrated Inductor
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EN2342QI
PVIN
VOUT
CA (pF)
Low VOUT Ripple
CIN = 1 x 22µF/1206
COUT = 2 x 47µF/1206
RA= 180/(Vout0.5) kΩ
RCA
(kΩ)
Nominal Nominal
Ripple Deviation
(mV)
(mV)
RA (kΩ)
Smallest Solution Size
CIN = 1 x 22µF/1206
COUT = 2 x 22µF/0805
CA (pF)
RCA
(kΩ)
Nominal
Ripple
(mV)
Nominal
Deviation
(mV)
≤1.0V
10
30
≤5
≤47
75
27
0.1
≤10
≤34
1.2V
12
27
6
48
43
39
0.1
13
33
1.5V
15
27
5
53
56
39
0.1
15
38
14V
1.8V
22
27
6
54
56
39
0.1
18
41
2.5V
27
24
8
55
51
39
0.1
26
59
3.3V
39
18
11
63
51
33
0.1
35
63
5.0V
47
8.2
18
97
75
22
5.1
42
115
≤1.0V
18
22
≤4
≤48
27
47
0.1
≤10
≤35
1.2V
22
22
5
49
75
47
0.1
13
37
1.5V
27
20
5
53
75
47
0.1
15
38
12V
1.8V
33
20
6
54
75
47
0.1
17
44
2.5V
47
18
7
54
56
47
0.1
25
59
3.3V
56
15
10
66
51
39
0.1
32
63
5.0V
56
10
16
99
75
22
5.1
39
128
≤1.0V
33
18
≤3
≤45
27
82
0.1
≤9
≤35
1.2V
39
18
4
46
30
100
0.1
13
39
1.5V
47
18
5
54
30
100
0.1
14
43
10V
1.8V
56
16
6
56
30
100
0.1
17
50
2.5V
68
12
7
57
75
56
0.1
26
70
3.3V
82
10
9
68
56
47
0.1
30
83
5.0V
100
4.3
14
98
75
33
5.1
33
140
≤1.0V 100
8.2
≤3
≤51
100
100
0.1
≤10
≤41
1.2V
100
8.2
4
51
100
100
0.1
12
43
1.5V
100
8.2
4
54
100
100
0.1
14
46
8.0V 1.8V
100
8.2
5
57
100
100
0.1
16
53
2.5V
100
8.2
6
64
91
82
0.1
23
71
3.3V
100
8.2
8
70
75
56
0.1
25
85
5.0V
100
8.2
10
110
75
56
5.1
30
127
≤1.0V 100
8.2
≤3
≤60
100
100
0.1
≤9
≤46
1.2V
100
8.2
4
63
100
100
0.1
12
51
6.6V
1.5V
1.8V
100
100
8.2
8.2
4
5
65
100
100
0.1
14
68
100
100
0.1
16
56
61
2.5V
100
8.2
5
75
100
100
0.1
19
83
3.3V
100
8.2
6
85
91
82
0.1
22
106
≤1.0V 100
8.2
≤3
≤73
100
100
0.1
≤9
≤56
1.2V
100
8.2
3
75
100
100
0.1
11
63
5V
1.5V
100
8.2
4
76
100
100
0.1
13
70
1.8V
100
8.2
4
80
100
100
0.1
13
78
2.5V
100
8.2
4
88
100
100
0.1
14
98
Table 6: RA, CA, and RCA Values for Various PVIN/VOUT Combinations: Low VOUT Ripple vs. Smallest Solution Size. See
Figure 8. Use the equation in Figure 8 to calculate RB (for low VOUT ripple option). Output Ripple is measured at
no load and Nominal Deviation is for a 2A load transient step in one direction. For compensation values of output
voltage in between the specified output voltages, choose compensation values of the lower output voltage
setting.
09520
February 21, 2014
www.altera.com/enpirion, Page 17
Rev A
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