ADP2380-EVALZ Analog Devices, ADP2380-EVALZ Datasheet - Page 16

• Manufacturer Part Number: ADP2380-EVALZ
• Description: Power Management IC Development Tools 20V 4A Evaluation Board
• Manufacturer: Analog Devices
• Type: DC/DC Converters, Regulators & Controllersr
• Series: ADP2380r

Specifications of ADP2380-EVALZ

• Rohs: yes
• Tool Is For Evaluation Of: ADP2380
• Input Voltage: 4.5 V to 20 V
• Factory Pack Quantity: 1

ADP2380
For a duty cycle that is larger than 50%, the minimum inductor
value is determined by the following equation:
The inductor peak current is calculated using the following
equation:
Table 7. Recommended Inductors
Vendor
Toko
Vishay
Würth Elektronik
L(Minimum) =
I
PEAK
= I
OUT
+
I ∆
2
V
Part No.
FDVE1040-1R5M
FDVE1040-2R2M
FDVE1040-3R3M
FDVE1040-4R7M
FDVE1040-6R8M
FDVE1040-100M
IHLP4040DZ-1R0M-01
IHLP4040DZ-1R5M-01
IHLP4040DZ-2R2M-01
IHLP4040DZ-3R3M-01
IHLP4040DZ-4R7M-01
IHLP4040DZ-6R8M-01
IHLP4040DZ-100M-01
744 325 120
744 325 180
744 325 240
744 325 330
744 325 420
744 325 550
L
OUT
2
×
×
1 (
f
SW
−
D
)
Rev. 0 | Page 16 of 28
Value (µH)
1.5
2.2
3.3
4.7
6.8
10
1.0
1.5
2.2
3.3
4.7
6.8
10
1.2
1.8
2.4
3.3
4.2
5.5
The saturation current of the inductor must be larger than
the peak inductor current. For the ferrite core inductors with
a quick saturation characteristic, the saturation current rating
of the inductor must be higher than the current-limit threshold of
the switch to prevent the inductor from becoming saturated.
The rms current of the inductor can be calculated by
Shielded ferrite core materials are recommended for low core
loss and low EMI. Table 7 lists some recommended inductors.
I
RMS
=
I
13.7
11.4
9.8
8.2
7.1
6.1
36
27.5
25.6
18.6
17
13.5
12
25
18
17
15
14
12
SAT
I
OUT
2
(A)
+
∆
12
I
L
2
I
14.6
11.6
9.0
8.0
7.1
5.2
17.5
15
12
10
9.5
8.0
6.8
20
16
14
12
11
10
RMS
(A)
DCR (mΩ)
4.6
6.8
10.1
13.8
20.2
34.1
4.1
5.8
9
14.4
16.5
23.3
36.5
1.8
3.5
4.75
5.9
7.1
10.3
Data Sheet