Table of Contents

Introduction ............................................................3

Power Management ICs (PMICs) ........................... 3

High-Performance Smartphone PMIC ................................... 4

Single-Cell Power Supply for Wireless Hearables ............... 5

Single-Cell Lithium-Ion Battery-Operated

Systems with Display .................................................................7

Single-Cell Power Management for Portable Music

Players ...........................................................................................8

Smart Power Selector Convenient Charging .......................9

Battery Chargers and Fuel Gauges ......................11

Li+ Battery Charge Termination ............................................. 11

Single-Cell Battery Charger for Handheld

Gaming Devices ................................................................. 12

Linear vs. Switch-Mode Charging ........................................ 12

Wireless Sensor Node Battery Charger ......................... 13

Single-Cell Digital Camera Battery Charger ................. 13

Integrated Battery Charger and Fuel Gauge ....................... 14

Single-Cell Wireless Speaker Charger and Fuel Gauge

... 15

Fuel Gauges and the ModelGauge m5 Algorithm ............. 17

Featured Technology: EZ Conﬁg...................................... 17

MAX17055 High-Accuracy Fuel Gauge ......................... 18

Counterfeit Battery Prevention with

SHA-256 Fuel Gauge Authentication ................................... 19

Low-Power Fuel Gauge for Wireless Sensors ..................... 21

Multi-Cell Fuel Gauge for Robots and Drones ...................22

DC-DC Converters ...............................................25

Remote Sense Enhances Regulation and

Load Transient Response ........................................................26

Voltage Positioning Increases Load

Transient Immunity ..................................................................27

USB Type-C Port Controller Power Supply ......................... 28

Improve Boost Eciency in Battery

Applications with Auto-Track ............................................... 29

Increase Battery Life with True Shutdown ......................... 30

High-Eciency Buck-Boost Regulator ................................. 31

LED Drivers ......................................................... 34

LED Driver Topologies ............................................................. 35

Transmissive LCD LED Backlight Driver ..............................36

Single WLED Camera Flash Driver .......................................37

LED Ambient Temperature Derating

Protection...................................................................................38

Dual-Phase Step-Up Converter and LED Driver ................39

List of Figures ...................................................... 41

Related Resources .............................................. 43

Trademarks ......................................................... 43

List of Tables

Table 1. Power Management IC Product Selector ..............10

Table 2. Battery Charger Product Selector .......................... 16

Table 3. Fuel Gauges with SHA-256 Authentication ........ 19

Table 4. ModelGauge Fuel Gauge Product Selector .........23

Table 5. Buck Converter—Remote Sensing

and Voltage Positioning Product Selector .......................32

Table 6. Boost Converter Product Selector ......................... 33

Table 7. Buck-Boost Converter Product Selector ...............33

Table 8. LED Driver Product Selector ..................................40