ADP1875 Analog Devices, ADP1875 Datasheet - Page 34

• Manufacturer Part Number: ADP1875
• Description: Synchronous Buck Controller with Constant On-Time, Valley Current Mode, and Power Saving Mode
• Manufacturer: Analog Devices

ADP1874/ADP1875
EXTERNAL COMPONENT RECOMMENDATIONS
The configurations listed in Table 10 are with f
VREG = 5 V (float), and a maximum load current of 14 A.
The ADP1875 models listed in Table 10 are the PSM versions of the device.
Table 10. External Component Values
SAP Model
ADP1874ARQZ-0.3-R7/
ADP1874ARQZ-0.6-R7/
ADP1875ARQZ-0.3-R7
ADP1875ARQZ-0.6-R7
ADP1874
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.3
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
1874/0.6
(First Line/Second Line)
Marking Code
ADP1875
1875/0.3
1875/0.6
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.3
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
1875/0.6
CROSS
= 1/12 × f
V
(V)
0.8
1.2
1.8
2.5
3.3
5
7
1.2
1.8
2.5
3.3
5
7
0.8
1.2
1.8
2.5
1.2
1.8
2.5
3.3
5
1.2
1.8
2.5
3.3
5
7
SW
OUT
, f
Rev. 0 | Page 34 of 44
ZERO
V
(V)
13
13
13
13
13
13
13
16.5
16.5
16.5
16.5
16.5
16.5
5.5
5.5
5.5
5.5
13
13
13
13
13
16.5
16.5
16.5
16.5
16.5
16.5
= ¼ × f
IN
C
(μF)
5 × 22
5 × 22
4 × 22
4 × 22
5 × 22
4 × 22
4 × 22
4 × 22
3 × 22
3 × 22
3 × 22
3 × 22
3 × 22
5 × 22
5 × 22
5 × 22
5 × 22
3 × 22
5 × 10
5 × 10
5 × 10
5 × 10
3 × 10
4 × 10
4 × 10
4 × 10
4 × 10
4 × 10
CROSS
IN
, R
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
9
9
9
9
9
9
9
9
9
2
9
RES
= 100 kΩ, R
C
5 × 560
4 × 560
4 × 270
3 × 270
2 × 330
330
22
4 × 560
4 × 270
4 × 270
2 × 330
2 × 150
22
4 × 560
4 × 270
3 × 270
3 × 180
5 × 270
3 × 330
3 × 270
2 × 270
150
4 × 270
2 × 330
3 × 270
330
4 × 47
3 × 47
OUT
2
2
5
+ ( 4 × 47
+ 4 × 47
7
5
(μF)
6
6
3
4
3
4
4
5
3
4
4
4
5
4
4
4
5
4
3
4
5
7
8
BOT
6
6
)
= 1 kΩ, R
L
(μH)
0.72
1.0
1.2
1.53
2.0
3.27
3.44
1.0
1.0
1.67
2.00
3.84
4.44
0.22
0.47
0.47
0.47
0.47
0.47
0.90
1.00
1.76
0.47
0.72
0.90
1.0
2.0
2.0
1
ON
= 5.4 mΩ (BSC042N03MS G),
R
(kΩ)
56.9
56.9
56.9
57.6
56.9
40.7
40.7
56.9
56.9
57.6
56.9
41.2
40.7
56.2
56.9
56.9
56.9
56.9
56.2
57.6
57.6
40.7
56.9
53.6
57.6
53.0
41.2
40.7
C
C
(pF)
620
620
470
470
470
680
680
620
470
470
510
680
680
300
270
220
220
360
270
240
240
360
300
270
270
270
360
300
COMP
C
(pF)
62
62
47
47
47
68
68
62
47
47
51
68
68
300
27
22
22
36
27
24
24
36
30
27
27
27
36
30
PAR
R
(kΩ)
0.3
1.0
2.0
3.2
4.5
7.3
10.7
1.0
2.0
3.2
4.5
7.3
10.7
0.3
1.0
2.0
3.2
1.0
2.0
3.2
4.5
7.3
1.0
2.0
3.2
4.5
7.3
10.7
TOP