DA9232

High Efficiency, Ultra-Low Quiescent Current and Ultra-

Low Output Ripple Buck Regulator

Datasheet

Revision 2.3

23-Apr-2018

CFR0011-120-00 Rev 5

3 of 50

© 2019 Dialog Semiconductor

10.3.7

Output Under-Voltage Protection ........................................................................ 28

10.3.8

Automatic Output voltage Discharge ................................................................... 28

10.3.9

Event Flag and Fault Control ............................................................................... 29

10.4 I2C Programming................................................................................................................. 30

10.4.1

Interface Description............................................................................................ 30

10.4.2

Details of the I2C Protocol.................................................................................... 30

10.5 GPO Pin Function Programming ........................................................................................ 32

10.5.1

Power Good Indicator .......................................................................................... 32

10.5.2

Event Indicator ..................................................................................................... 32

10.5.3

Reset Pulse Generation....................................................................................... 32

10.5.4

Always Pull-Down or Hi-Z .................................................................................... 33

11 Register Overview ....................................................................................................................... 34

11.1 Register Map ....................................................................................................................... 34

11.1.1

Buck Control ........................................................................................................ 34

11.1.2

System Module .................................................................................................... 35

11.2 Register Definitions ............................................................................................................. 35

11.2.1

Buck Control ........................................................................................................ 35

11.2.1.1

Event/Status/Mask Registers .......................................................... 35

11.2.1.2

User Registers ................................................................................. 38

11.2.2

System Module .................................................................................................... 43

11.2.2.1

System Reset Registers .................................................................. 43

11.2.2.2

System ID Registers ...................................................................... 44

12 Package Information ................................................................................................................... 46

12.1 Package Outlines ................................................................................................................ 46

12.2 Moisture Sensitivity Level.................................................................................................... 47

12.3 Soldering Information .......................................................................................................... 47

13 Ordering Information .................................................................................................................. 48

Contacting Dialog Semiconductor .................................................................................................. 49

Figures

Figure 1: Block Diagram ........................................................................................................................ 7

Figure 2: DA9232 Application Diagram ................................................................................................. 7

Figure 3: Pinout Diagram (Top View) .................................................................................................... 8

Figure 4: Buck VOUT = 1.8 V.............................................................................................................. 17

Figure 5: Buck VOUT = 0.7 V.............................................................................................................. 17

Figure 6: High-Side FET...................................................................................................................... 17

Figure 7: Low-Side FET....................................................................................................................... 17

Figure 8: Buck VOUT = 1.8 V.............................................................................................................. 18

Figure 9: Buck VOUT = 1.2 V.............................................................................................................. 18