Table of Contents
Document Revision History .............................................................................................................................. 2
Table of Contents............................................................................................................................................. 3
1 Overview ............................................................................................................................................... 7
1.1 Features ............................................................................................................................................. 7
1.2 Applications ....................................................................................................................................... 7
1.3 General Description .......................................................................................................................... 7
1.4 Ordering Information ........................................................................................................................ 8
1.5 Top Marking Definition ..................................................................................................................... 9
1.6 Boot-up Voltage Table on Each Part ............................................................................................... 10
1.7 Pin Assignments and Description .................................................................................................... 12
2 Electrical Characteristics ...................................................................................................................... 17
2.1 Absolute Maximum Ratings over Operating Free-Air Temperature Range .................................... 17
2.2 Thermal Characteristics ................................................................................................................... 18
2.3 Pin Voltage Range ........................................................................................................................... 19
2.4 Recommended Operating Range .................................................................................................... 24
2.5 Electrical Characteristics ................................................................................................................. 25
2.6 Regulator Output ............................................................................................................................ 26
2.7 Vibrator ........................................................................................................................................... 39
2.8 Audio CODEC ................................................................................................................................... 40
2.9 Charger-in Detection ....................................................................................................................... 46
2.10 AUXADC ........................................................................................................................................... 47
2.11 Fuel Gauge ....................................................................................................................................... 48
2.12 BIF .................................................................................................................................................... 49
2.13 DCXO ............................................................................................................................................... 50
2.13.1 Reference Output Buffer(s) Specifications .................................................................... 50
3 Functional Description ......................................................................................................................... 52
3.1 General Description ........................................................................................................................ 52
3.2 PMIC Functional Blocks ................................................................................................................... 53
3.2.1 Power-on/off Sequence ................................................................................................ 53
3.2.2 Buck Converter and Application Reference .................................................................. 61
3.2.3 Low Dropout Regulator (LDOs) and Application Reference .......................................... 62
3.2.4 Vibrator ......................................................................................................................... 63
3.2.5 Audio CODEC and Accessory Detection ........................................................................ 63
3.2.6 AUXADC ......................................................................................................................... 66
3.2.7 Fuel Gauge ..................................................................................................................... 66
3.2.8 BIF .................................................................................................................................. 67
3.2.9 Real-Time Clock ............................................................................................................. 68
3.2.10 DCXO ............................................................................................................................. 68
3.2.11 Interrupt and Watchdog ................................................................................................ 69
3.2.12 SPI Interface .................................................................................................................. 70
