ADP2303ARDZ-R7 Analog Devices Inc, ADP2303ARDZ-R7 Datasheet - Page 21

• Manufacturer Part Number: ADP2303ARDZ-R7
• Description: IC REG SW STPDWN NONSYNCH 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Step-Down (Buck), PFM/PWM - Current Moder

Specifications of ADP2303ARDZ-R7

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 0.8V
• Current - Output: 3A
• Frequency - Switching: 700kHz
• Voltage - Input: 3 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Primary Input Voltage: 20V
• No. Of Outputs: 1
• Output Current: 3A
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 3 - 168 Hours
• Peak Reflow Compatible (260 C): Yes
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADP2303ARDZ-R7; ADP2303ARDZ-R7TR

Table 11. Recommended External Components for Typical Applications at 2 A/3 A Output Load
Part Number
ADP2302
ADP2303
V
IN
V
18
18
12
12
12
12
12
5
5
5
18
18
12
12
12
12
12
5
5
5
= 12V
IN
(V)
10µF
25V
C
IN
10.2kΩ
V
3.3
5.0
1.5
1.8
2.5
3.3
5.0
1.5
1.8
2.5
3.3
5.0
1.5
1.8
2.5
3.3
5.0
1.5
1.8
2.5
56kΩ
R
R
OUT
EN1
EN2
1%
1%
(V)
R
PGOOD
100kΩ
I
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
LOAD(max)
Figure 51. Schematic for the Design Example
VIN
PGOOD
EN
(A)
ADP2303
GND
Rev. 0 | Page 21 of 28
L (μH)
6.8
10
4.7
4.7
4.7
6.8
6.8
3.3
3.3
3.3
4.7
6.8
2.5
3.3
3.3
4.7
4.7
2.2
2.2
2.2
BST
SW
FB
C
0.1µF
D
SSB43L
C
2 × 22 μF
2 × 22 μF
2 × 47 μF
3 × 22 μF
3 × 22 μF
2 × 22 μF
2 × 22 μF
2 × 47 μF
2 × 47 μF
2 × 22 μF
2 × 47 μF
47 μF
3 × 47 μF
3 × 47 μF
2 × 47 μF
2 × 47 μF
47 μF
3 × 47 μF
3 × 47 μF
3 × 47 μF
BST
OUT
4.7µH
L
C
47µF
6.3V
OUT1
R
31.6
52.3
10
12.7
21.5
31.6
52.3
10
12.7
21.5
31.6
52.3
10
12.7
21.5
31.6
52.3
10
12.7
21.5
TOP
C
47µF
6.3V
(kΩ), ±1%
OUT2
V
ADP2302/ADP2303
R
31.6kΩ
1%
R
10.2kΩ
1%
OUT
TOP
BOT
3A
= 3.3V
R
10.2
10
11.3
10.2
10.2
10.2
10
11.3
10.2
10.2
10.2
10
11.3
10.2
10.2
10.2
10
11.3
10.2
10.2
BOT
(kΩ), ±1%