DA9141

High-Performance, 25 A/40 A Peak, DC-DC

Converter

Datasheet

Revision 2.0

28-Jan-2022

CFR0011-120-00

2 of 50

© 2022 Renesas Electronics

Contents

General Description ............................................................................................................................ 1

Key Features ........................................................................................................................................ 1

Applications ......................................................................................................................................... 1

Figures.................................................................................................................................................. 3

1

Terms and Definitions................................................................................................................... 5

2

Block Diagram ............................................................................................................................... 6

3

Pinout ............................................................................................................................................. 7

4

Characteristics .............................................................................................................................. 9

4.1

Absolute Maximum Ratings .................................................................................................. 9

4.2

Electrostatic Discharge Ratings ............................................................................................ 9

4.3

Recommended Operating Conditions ................................................................................... 9

4.4

Thermal Characteristics ...................................................................................................... 10

4.4.1

Power Derating Curves........................................................................................ 11

4.5

Buck1 Characteristics ......................................................................................................... 11

4.6

Performance and Supervision Characteristics.................................................................... 14

4.7

Digital IO Characteristics..................................................................................................... 14

4.8

Timing Characteristics......................................................................................................... 15

4.9

Typical Performance ........................................................................................................... 16

5

Functional Description ............................................................................................................... 17

5.1

Operating Modes................................................................................................................. 17

5.1.1

ON........................................................................................................................ 17

5.1.2

OFF...................................................................................................................... 17

5.2

DC-DC Buck Converter....................................................................................................... 17

5.2.1

Switching Frequency ........................................................................................... 17

5.2.2

Operation Modes and Phase Selection ............................................................... 17

5.2.3

Output Voltage Selection ..................................................................................... 18

5.2.4

Soft Startup and Shutdown.................................................................................. 18

5.2.5

Current Limit ........................................................................................................ 18

5.2.6

Temperature Protection ....................................................................................... 19

5.3

Control Circuits.................................................................................................................... 19

5.3.1

Chip Enable and Disable ..................................................................................... 19

5.3.2

GPIO .................................................................................................................... 20

5.3.3

Interrupt................................................................................................................ 22

5.4

I2C Communication ............................................................................................................. 24

5.4.1

I2C Protocol.......................................................................................................... 24

6

Register Definitions .................................................................................................................... 26

6.1

Register Map ....................................................................................................................... 26

6.2

Register Descriptions .......................................................................................................... 28

6.2.1

Buck1 ................................................................................................................... 39

6.2.2

OTP Control ......................................................................................................... 43

7

Package Information ................................................................................................................... 45

7.1

Package Outlines ................................................................................................................ 45

7.2

Moisture Sensitivity Level.................................................................................................... 46

7.3

Soldering Information .......................................................................................................... 46