STPMIC25APQR datasheet(136/145 Pages) STMICROELECTRONICS

136 / 145 page

Contents

Device configuration table .........................................................2

Typical application schematic......................................................3

2.1

Recommended external components .............................................. 4

2.2

Pinout and pin description ....................................................... 5

Electrical and timing characteristics ...............................................7

3.1

Absolute maximum ratings....................................................... 7

3.2

Thermal characteristics ......................................................... 7

3.3

Consumption in typical application scenarios ....................................... 8

3.4

Electrical and timing parameter specifications....................................... 9

3.4.1

General section.......................................................... 9

3.4.2

Digital interface ......................................................... 11

3.4.3

LDO1 (VDDA18AON) .................................................... 12

3.4.4

LDO2, LDO5, LDO6, LDO7................................................ 13

3.4.5

LDO8 ................................................................ 14

3.4.6

LDO3 ................................................................ 15

3.4.7

LDO4 ................................................................ 16

3.4.8

REFDDR (DDR_VREF) .................................................. 17

3.4.9

BUCK1, BUCK6 ........................................................ 17

3.4.10

BUCK2, BUCK3 ........................................................ 20

3.4.11

BUCK4, BUCK5 ........................................................ 21

3.4.12

BUCK7 ............................................................... 23

Power regulator descriptions .....................................................25

4.1

Overview .................................................................... 25

4.2

LDO regulators ............................................................... 26

4.2.1

Common features ....................................................... 26

4.2.2

LDO1's special features .................................................. 27

4.2.3

LDO3's special features .................................................. 28

4.2.4

LDO4's special features .................................................. 28

4.2.5

REFDDR's special features................................................ 28

4.2.6

LDO output voltage settings ............................................... 29

4.2.7

Examples of DDR memory power supply topology using LDOs .................... 30

4.3

Buck converters............................................................... 31

4.3.1

Buck converters' common features .......................................... 32

4.3.2

Buck output voltage settings ............................................... 35

Feature descriptions..............................................................36

STPMIC25

Contents

DS14278 - Rev 3

page 136/145

STPMIC25APQR Datasheet(PDF) 136 Page - STMicroelectronics

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