ADP2107 Analog Devices, ADP2107 Datasheet - Page 30

• Manufacturer Part Number: ADP2107
• Description: 2 Amp Synchronous, Step-Down DC-to-DC Converter
• Manufacturer: Analog Devices

ADP2105/ADP2106/ADP2107
APPLICATION CIRCUITS
OFF
OFF
ON
ON
140kΩ
1
2
3
4
120pF
1
2
3
4
70kΩ
68pF
Figure 57. Application Circuit—V
EN
GND
GND
GND
EN
GND
GND
GND
Figure 56. Application Circuit—V
COMP
COMP
V
V
OUT
FB
OUT
FB
16
16
5
5
ADP2107-3.3
ADP2107-1.5
SS
SS
15
GND
15
GND
6
6
0.1μF
1nF
0.1μF
1nF
AGND
AGND
IN
IN
14
14
7
7
10Ω
10Ω
PWIN1
PWIN1
PWIN2
PWIN2
PGND
NC
PGND
NC
13
13
8
8
LX2
LX1
LX2
LX1
Rev. C | Page 30 of 36
V
V
IN
IN
12
11
10
12
11
10
9
9
INPUT VOLTAGE = 5V
INPUT VOLTAGE = 3.6V
V
V
IN
IN
IN
IN
10μF
10μF
10μF
10μF
= 3.6 V, V
= 5 V, V
1
1
1
1
2.5μH
1.5μH
OUT
1
2
NOTES
1. NC = NO CONNECT.
2. EXTERNAL COMPONENTS WERE
1
2
NOTES
1. NC = NO CONNECT.
2. EXTERNAL COMPONENTS WERE
OUT
10μF
22μF
MURATA X5R 0805
10μF: GRM21BR61A106KE19L
4.7μF: GRM21BR61A475KA73L
SUMIDA CDRH5D28: 2.5μH
MURATA X5R 0805
10μF: GRM21BR61A106KE19L
22μF: GRM21BR60J226ME39L
TOKO D62LCB OR COILCRAFT LPS4012
CHOSEN FOR A 10% OVERSHOOT
FOR A 1A LOAD TRANSIENT.
CHOSEN FOR A 5% OVERSHOOT
FOR A 1A LOAD TRANSIENT.
= 3.3 V, Load = 0 A to 2 A
2
2
= 1.5 V, Load = 0 A to 2 A
1
1
V
V
OUT
OUT
4.7μF
22μF
OUTPUT VOLTAGE = 3.3V
OUTPUT VOLTAGE = 1.5V
1
1
LOAD
0A TO 2A
LOAD
0A TO 2A