LTC3589_12 Datasheet, PDF (25/50 Pages) Linear Technology – 8-Output Regulator with Sequencing and I2C

OPERATION
LTC3589/LTC3589-1/
LTC3589-2
P_VIN4 SW4AB
A
B
SW4CD BB_OUT
D
C
EN
MODE
PWM
CONTROL
0.8V
R1
BB_FB
R2
3589 F04
22μF
Figure 4. Buck-Boost Switching Regulator Application Circuit
Table 9. Inductors for Step-Down Switching Regulators 2 and 3
MANUFACTURERS
PART NUMBER
VALUE
(μH) DCR (Ω)
Coilcraft
XPL4020-102ML
XPL4020-152ML
XPL4020-472ML
1.0
0.029
1.5
0.036
4.7
0.130
Cooper
SD14-1R2-R
SD14-3R2-R
SD25-3R3-R
1.2
0.034
3.2
0.066
3.3
0.038
Sumida
CDRH5D16NP-4R7N
4.7
CDRH38D16RHPNP-3R3M 3.3
0.064
0.059
TDK
VLF5014ST-2R2N2R3
2.2
0.073
VLCF5020T-2R7N2R2-1
2.7
0.083
VLCF5020T-3R3N2R0-1
3.3
0.096
TOKO
1124BS-2R4N
1124BS-3R3N
2.4
0.065
3.3
0.074
Tokin
H-DI-0520-3R3
H-DI-0520-4R7
H-DI-0630-3R8
H-DI-0630-4R7
3.3
0.062
4.7
0.090
3.8
0.040
4.7
0.043
Wurth
744043004
744052002
7440530047
744042003
7440430022
4.7
0.052
2.5
0.030
4.7
0.030
3.3
0.055
2.2
0.023
MAX DC
CURRENT (A)
4.00
3.60
1.90
3.35
2.00
2.21
2.05
1.46
2.3
2.2
2
2.30
2.10
2.00
1.80
2.00
1.90
1.55
2.4
2.4
1.95
2.5
SIZE (mm) W × L × H
4.2 × 4.2 × 2.0
4.2 × 4.2 × 2.0
4.2 × 4.2 × 2.0
5.2 × 5.2 × 1.45
5.2 × 5.2 × 1.45
4.8 × 4.8 × 2.5
5.6 × 5.6 × 1.8
4.2 × 4.2 × 1.8
4.8 × 4.6 × 1.4
5.0 × 5.0 × 2.0
5.0 × 5.0 × 2.0
4.5 × 4.7 × 1.8
4.5 × 4.7 × 1.8
5.3 × 5.3 × 2.0
5.3 × 5.3 × 2.0
6.3 × 6.3 × 3.0
6.3 × 6.3 × 3.0
5.0 × 5.0 × 3.0
5.8 × 5.8 × 1.8
5.8 × 5.8 × 2.8
4.8 × 4.8 × 1.8
4.8 × 4.8 × 2.8
3589fe
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