SPSB100 datasheet(108/214 Pages) STMICROELECTRONICS

108 / 214 page

Component

Block/Usage

Min

Typ Max Unit

Note

C_Buck1_24

C_Buck2_24

C_Buck3

Output capacitor at 2.4

MHz

T = 27 °C

Vout_buck1 = 3.3 V

µF

ESR: < 15 mΩ

Rated voltage: > 10 VDC

X7R [±15% temperature characteristics]

SMD

Choice: CGA6P1X7R1C226M250AC

L_Buck1_24

L_Buck2_24

Output inductor at 2.4 MHz

Iout = 3 A

2.2

3.3

µH

Rdc: < 25 mΩ

Isat > 8 A

SRF > 15 MHz

SMD

Choice: XAL6030-332ME

Cbst_Buck1

Cbst_Buck2

Bootstrap capacitor

37.6

56.4

Cbst_Buck3

Bootstrap capacitor

100

120

L_Buck3

Output inductor

Iout = 6 A

2.2

3.3

µH

Rdc: < 15 mΩ

Isat > 10 A

SRF > 15 MHz

SMD

Choice: SPM10040T-3R3M-HZ

Cc_Buck1_24

Cc_Buck2_24

F = 2.4 MHz

1.2

1.5

1.8

Cc_Buck3

3.76

4.7

5.64

Rc_Buck1_24

Rc_Buck2_24

F = 2.4 MHz

14.25 15 15.75

kΩ

Rc_Buck3

0.95

1.05

kΩ

C_Buck1_04

C_Buck2_04

Output capacitor at 400

kHz

T = 27 °C

Vout_buck1 = 3.3 V

µF

ESR: < 15 mΩ

Rated voltage: > 10 VDC

X7R [±15% temperature characteristics]

Choice: CGA6P1X7S1A476M250AC

L_Buck1_04

L_Buck2_04

Output inductor at 400 kHz

Iout = 3 A

µH

Rdc : < 40mΩ

Isat > 8 A

SRF > 4 MHz

SMD

Choice: SPM12565VT-150M-D

Cc_Buck1_04

Cc_Buck2_04

F = 400 kHz

Rc_Buck1_04

Rc_Buck2_04

F = 400 kHz

4.84

5.1

5.35

kΩ

CVREG

4.7

µF

max ESR < 0.1 Ω

Rated voltage > 5 V

X7R

Choice: CGA4J3X7R1A475K125AB

CLDO1

2.2

µF

SPSB100

Application circuit

DS14640 - Rev 1

page 108/214

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