Datasheet MAX20343, MAX20344 (Maxim) - 2

MAX20343/MAX20344 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator
Simplified Block Diagram
LVLX HVLX IN OUT SWITCH- OVER /IZERO IPEAK IVALLEY DRIVER CONTROL/STATE MACHINE INGOOD** PGOOD** DIGITAL REF REF INT* RSEL*** SCL* SDA* EN** GND FAST*** *VERSIONS WITH EnI2CMode = I2C CONTROL ONLY (SEE TABLE 3) **VERSIONS WITH EnI2CMode = EN CONTROL ONLY (SEE TABLE 3) ***FastRSELMode SELECTS PIN FUNCTIONALITY (SEE TABLE 3) www.maximintegrated.com Maxim Integrated | 2 Document Outline General Description Applications Benefits and Features Simplified Block Diagram Absolute Maximum Ratings Package Information 16-BUMP WLP 12-Pin FC2QFN Electrical Characteristics Electrical Characteristics (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configurations I2C-Controlled WLP Single-Pin-Enabled WLP I2C-Controlled FC2QFN Single-Pin-Enabled FC2QFN Pin Description Pin Description (continued) Functional Diagram Functional Diagram Detailed Description Startup Voltage Architectural Description Switching Phases Buck-Boost Mode Buck-Only Mode Inductor Peak and Valley Current Limits Integrator Control Loop Disable Input Operating Voltage Output Operating Power and Other Optimizations Device Control I2C-Controlled Single-Pin-Enabled Dynamic Voltage Scaling (DVS) RSEL Voltage Setting Register Map MAX20343/MAX20344 Register Details ChipID (0x00) BBstCfg0 (0x01) BBstVSet (0x02) BBstISet (0x03) BBstCfg1 (0x04) Status (0x05) Int (0x06) Mask (0x07) LockMsk (0x50) LockUnlock (0x51) Applications Information Input and Output Capacitance Inductor Selection Soft-Start I2C Interface Slave Address Start, Stop, and Repeated Start Conditions Bit Transfer Single-Byte Write Burst Write Single Byte Read Burst Read Acknowledge Bits Register Values Typical Application Circuits Optical Heart Rate LED Supply LPWAN Radio Supply Ordering Information Revision History