Datasheet

ADP1870/ADP1871 Data Sheet
Rev. B | Page 32 of 44
Marking Code
SAP Model ADP1870 ADP1871
V
OUT
(V)
V
IN
(V)
C
IN
(µF)
C
OUT
(µF)
L
1
(µH)
R
C
(kΩ)
C
COMP
(pF)
C
PAR
(pF)
R
TOP
(kΩ)
LDY LDN 5 16.5 3 × 10
9
3 × 47
6
1.0 34 268 27 110.0
LDY LDN 7 16.5 3 × 10
9
22
2
+ 47
6
1.0 34 228 23 160.0
1
See the Inductor Selection section and Table 11.
2
22 µF Murata 25 V, X7R, 1210 GRM32ER71E226KE15L (3.2 mm × 2.5 mm × 2.5 mm).
3
560 µF Panasonic (SP-series) 2 V, 7 mΩ, 3.7 A EEFUE0D561LR (4.3 mm × 7.3 mm × 4.2 mm).
4
270 µF Panasonic (SP-series) 4 V, 7 mΩ, 3.7 A EEFUE0G271LR (4.3 mm × 7.3 mm × 4.2 mm).
5
330 µF Panasonic (SP-series) 4 V, 12 mΩ, 3.3 A EEFUE0G331R (4.3 mm × 7.3 mm × 4.2 mm).
6
47 µF Murata 16 V, X5R, 1210 GRM32ER61C476KE15L (3.2 mm × 2.5 mm × 2.5 mm).
7
150 µF Panasonic (SP-series) 6.3 V, 10 mΩ, 3.5 A EEFUE0J151XR (4.3 mm × 7.3 mm × 4.2 mm).
8
180 µF Panasonic (SP-series) 4 V, 10 mΩ, 3.5 A EEFUE0G181XR (4.3 mm × 7.3 mm × 4.2 mm).
9
10 µF TDK 25 V, X7R, 1210 C3225X7R1E106M.
Table 11. Recommended Inductors
L (µH) DCR (mΩ) I
SAT
(A) Dimension (mm) Manufacturer Model Number
0.12 0.33 55 10.2 × 7 Würth Elektronik 744303012
0.22 0.33 30 10.2 × 7 Würth Elektronik 744303022
0.47 0.67 50 13.2 × 12.8 Würth Elektronik 744355147
0.72 1.3 35 10.5 × 10.2 Würth Elektronik 744325072
0.9 1.6 28 13 × 12.8 Würth Elektronik 744355090
1.2 1.8 25 10.5 × 10.2 Würth Elektronik 744325120
1.0 3.3 20 10.5 × 10.2 Würth Elektronik 7443552100
1.4 3.2 24 14 × 12.8 Würth Elektronik 744318180
2.0 2.6 22 13.2 × 10.8 Würth Elektronik 7443551200
0.8 2.5 16.5 12.5 × 12.5 AIC Technology CEP125U-R80
Table 12. Recommended MOSFETs
V
GS
= 4.5 V
R
ON
(mΩ)
I
D
(A)
V
DS
(V)
C
IN
(nF)
Q
TOTAL
(nC)
Package Manufacturer Model Number
Upper-Side MOSFET
(Q1/Q2)
5.4 47 30 3.2 20 PG-TDSON8 Infineon BSC042N03MS G
10.2 53 30 1.6 10 PG-TDSON8 Infineon BSC080N03MS G
6.0 19 30 35 SO-8 Vishay Si4842DY
9 14 30 2.4 25 SO-8 International Rectifier IRF7811
Lower-Side MOSFET
(Q3/Q4)
5.4 47 30 3.2 20 PG-TDSON8 Infineon BSC042N03MS G
10.2 82 30 1.6 10 PG-TDSON8 Infineon BSC080N03MS G
6.0 19 30 35 SO-8 Vishay Si4842DY