Datasheet

Data Sheet ADP2105/ADP2106/ADP2107
Rev. D | Page 31 of 36
ADP2105-1.8
OFF
EN
SS
LX2
AGND
OUTPUT VOLTAGE = 1.8V
COMP
ON
PGND
GND
GND
GND
NC
LX1
PWIN2
V
IN
V
IN
INPUT VOLTAGE = 2.7V TO 4.2V
22μF
1
V
OUT
V
OUT
1nF
270kΩ
39pF
1
2
3
4
12
11
10
9
16
15 14
13
5
6
7
8
2.7μH
2
22μF
1
LOAD
0A TO 1A
4.7μF
1
4.7μF
1
10Ω
0.1μF
1
MURATA X5R 0805
4.7μF: GRM21BR61A475KA73L
22μF: GRM21BR60J226ME39L
2
TOKO 1098AS-DE2812: 2.7μH
NOTES
1. NC = NO CONNECT.
2. EXTERNAL COMPONENTS WERE
CHOSEN FOR A 5% OVERSHOOT
FOR A 1A LOAD TRANSIENT.
06079-049
PWIN1INGND
FB
Figure 58. Application Circuit—V
IN
= Li-Ion Battery, V
OUT
= 1.8 V, Load = 0 A to 1 A
ADP2105-1.2
OFF
EN
SS
LX2
AGND
OUTPUT VOLTAGE = 1.2V
COMP
ON
PGND
GND
GND
GND
NC
LX1
PWIN2
V
IN
V
IN
INPUT VOLTAGE = 2.7V TO 4.2V
22μF
1
V
OUT
V
OUT
1nF
135kΩ
82pF
1
2
3
4
12
11
10
9
16 15 14 13
5 6 7 8
2.4μH
2
4.7μF
1
LOAD
0A TO 1A
4.7μF
1
4.7μF
1
10Ω
0.1μF
1
MURATA X5R 0805
4.7μF: GRM21BR61A475KA73L
22μF: GRM21BR60J226ME39L
2
TOKO 1069AS-DB3018HCT OR
TOKO 1070AS-DB3020HCT
NOTES
1. NC = NO CONNECT.
2. EXTERNAL COMPONENTS WERE
CHOSEN FOR A 10% OVERSHOOT
FOR A 1A LOAD TRANSIENT.
06079-050
PWIN1INGNDFB
Figure 59. Application Circuit—V
IN
= Li-Ion Battery, V
OUT
= 1.2 V, Load = 0 A to 1 A