DA9131

High-Performance, Dual-Channel DC-DC Converter for

Mobile and Portable Applications

Datasheet

Revision 2.0

11-Aug-2021

CFR0011-120-00

5 of 56

© 2021 Dialog Semiconductor

6

Package Information ................................................................................................................... 52

6.1

Package Outlines ................................................................................................................ 52

6.2

Package Marking ................................................................................................................ 53

6.3

Moisture Sensitivity Level.................................................................................................... 53

6.4

Soldering Information .......................................................................................................... 53

7

Ordering Information .................................................................................................................. 54

8

Application Information .............................................................................................................. 55

8.1

Capacitor Selection ............................................................................................................. 55

8.2

Inductor Selection ............................................................................................................... 55

Table of Figures

Figure 1: Simplified Schematic Diagram ............................................................................................... 3

Figure 2: Typical Application Diagram (Port Control) ............................................................................ 3

Figure 3: Typical Application Diagram (I2C Control).............................................................................. 3

Figure 4: DA9131 Pinout Diagram (Bottom View)................................................................................. 8

Figure 5: Power Derating Curve .......................................................................................................... 11

Figure 6: DA9131 Efficiency at VOUT = 0.8 V, PWM Mode .................................................................. 17

Figure 7: DA9131 Efficiency at VOUT = 0.8 V, Auto Mode ................................................................... 17

Figure 8: Buck Output Voltage Control Concept ................................................................................. 19

Figure 9: Resistive Divider................................................................................................................... 20

Figure 10: Thermal Protection Operation ............................................................................................ 21

Figure 11: Interrupt Operation Example .............................................................................................. 24

Figure 12: Interrupt Operation Example 2 ........................................................................................... 25

Figure 13: Interrupt Operation Example 3 ........................................................................................... 25

Figure 14: Interrupt Operation Example 4 ........................................................................................... 25

Figure 15: Power-Good (PG) and System Good (SG) ........................................................................ 27

Figure 16: I2C START and STOP Condition Timing............................................................................ 30

Figure 17: I2C Byte Write (SDA Line) .................................................................................................. 30

Figure 18: I2C Byte Read (SDA Line) Examples ................................................................................. 30

Figure 19: Package Outline Drawing................................................................................................... 52

Table of Tables

Table 1: Pin Description ........................................................................................................................ 8

Table 2: Pin Type Definition .................................................................................................................. 9

Table 3: Absolute Maximum Ratings................................................................................................... 10

Table 4: Recommended Operating Conditions ................................................................................... 10

Table 5: Package Ratings ................................................................................................................... 11

Table 6: Power Dissipation.................................................................................................................. 11

Table 7: ESD Characteristics .............................................................................................................. 11

Table 8: Buck Electrical Characteristics .............................................................................................. 12

Table 9: Electrical Characteristics ....................................................................................................... 14

Table 10: Digital I/O Electrical Characteristics .................................................................................... 15

Table 11: I2C Electrical Characteristics .............................................................................................. 16

Table 12: Thermal Protection Control Registers ................................................................................. 21

Table 13: Interrupt List......................................................................................................................... 22

Table 14: Interrupt Registers Except for Power-Good Status ............................................................. 23

Table 15: Interrupt Registers for Power-Good, System Good, and Temp Warning Status ................ 23

Table 16: GPIO Pin Assignment ......................................................................................................... 26

Table 17: GPIO Function Configuration .............................................................................................. 26

Table 18: GPIO0-Configurable Registers when CONF_EN = 1 ......................................................... 28

Table 19: Register Map ....................................................................................................................... 31

Table 20: SYS_STATUS_0 (0x0001) .................................................................................................. 33