Datasheet

ADP1850 Data Sheet
Rev. A | Page 30 of 32
L2
VIN
CIN
22
CIN
21
M5 M6
M7 M8
1.74kΩ
22kΩ
COUT
21
COUT
22
TO
VCCO
137kΩ
EN1
SYNC
TO
VIN
137kΩ
VIN
VCCO
VDL
AGND
FREQ
EN2
SW1
DH1
PGND1
DL1
DL2
PGND2
DH2
SW2
TR
K2
FB2
COMP2
RAMP2
SS2
PGOOD2
ILIM2
BST2
TRK1
FB1
COMP1
RAMP1
SS1
PGOOD1
ILIM1
BST1
ADP1850
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
32 31 30 29 28 27 26 25
9
10
11
12
13 14 15 16
8.87kΩ
180pF
3.3n
F
100nF
22pF
1µF
0.1µF
0.1µF
1µF
1µF
TO
VCCO
TO
FB1
TO
SS1
TO
COMP1
V
OUT1
1.09V
50A
CIN
11
, CIN
12
, CIN
21
, CIN
22
: 10µF/X7R/25V/1210, MURATA
COUT
11
, COUT
21
, 2SEPC560MZ × 3, 560µF, OSCON, SANYO
COUT
12
, COUT
22
: GRM31CR60J476ME19 × 2, 47µV/1206/6.3V, MURATA
f
SW
= 300kHz
CIN = 180µF/16V × 4, 16SEP180M, OS-CON, SANYO
M1, M2, M5, M6: BSC080N03IS
M3, M4, M7, M8: BSC030N03LS
L1, L2: SER1408-301, 300nH, COILCRAFT; OR 744355147, 0.4µH, WURTH ELECTRONIK
8.3kΩ
10kΩ
2Ω
2Ω
L1
V
IN
= 10V TO 14V
CIN
12
CIN
11
M1 M2
CIN
M3 M4
1.74kΩ
22kΩ
COUT
11
COUT
12
22pF
09440-047
Figure 47. Dual-Phase Circuit, 50 A Output