STPM098C datasheet(100/110 Pages) STMICROELECTRONICS

100 / 110 page

Name

Min

Typ

Max

Unit

Minimum requirements

Notes

LPHASEn

160

IRMS_MIN = 30 A

Shielded high current power inductor

RADDRH

4.7

kΩ

0.01 W

RADDRL

4.7

kΩ

0.01 W

RAUXH

4.7

kΩ

0.01 W

RAUXL

4.7

kΩ

0.01 W

RPU_FAULT

4.7

kΩ

0.01 W

RPU_PMBUS

4.7

kΩ

0.01 W

RSENSE

mΩ

1%, 2 W

5.1.1

Output capacitors configuration example

As a reference example, next table shows output capacitors bill of material for a customer’s application with the

following characteristics:

Loop 1

•

N. of phases: 6 (with dynamic phase shedding enabled)

•

Output inductors: 160 nH

•

Vout: 0.75 V

•

ILOAD_MAX: 180 A

•

PWM frequency: 500 kHz

Loop 2

•

N. of phases: 2 (with dynamic phase shedding enabled)

•

Output inductors: 160 nH

•

Vout: 0.75 V

•

ILOAD_MAX: 45 A

•

PWM frequency: 500 kHz

For each control loop, capacitors are grouped in 2 banks to be placed, namely, close to output inductors and

close to load.

Table 80. Output capacitors example BOM

Value [μF]

Requirements

Package

Total C [mF]

Loop 1

CVOUT1_1

6.3 V, 10%

1206

4.745

10 V, 10%

0402

220

4 V, 20%

1210

CVOUT1_2

220

4 V, 20%

1210

8.839

4 V, 20%

0603

10 V, 10%

0402

Loop 2

CVOUT2_1

220

4 V, 20%

1206

1.76

CVOUT2_2

4 V, 20%

0603

0.503

220

4 V, 20%

1210

10 V, 10%

0402

STPM098C

Applicationcircuit

DS14440 - Rev 1

page 100/110

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