EFP0109GM20-E

Power Management - Specialized Overview

The EFP0109GM20-E is a multi-channel PMIC from the Silicon Labs EFP01 series, designed for ultra-low-power IoT applications. It features a wired boost architecture with an input voltage range of 1.8 V to 5.5 V and operates within a temperature range of -40 °C to +105 °C. The device provides three output rails: Voltage Output A (VOA) supports 1.7 V to 5.2 V via a configurable DC-DC converter; Voltage Output B (VOB) delivers 0.8 V to 3.3 V using a buck-only DC-DC converter; and Voltage Output C (VOC) is a linear regulator. Maximum output currents are specified at 90 mA, 141 mA, and 150 mA respectively, with a maximum output voltage of 3.3 V for specific rails. It is housed in a QFN-20 package.

Power Management - Specialized Feature Summary

• Provides complete system power management with primary cell battery Coulomb counting capabilities for host processors.
• Delivers high efficiency up to 94% through flexible DC-DC and LDO configurations across multiple output rails.
• Supports firmware-programmable switched outputs to enable complete powerdown of high-leakage external circuitry during low-power modes.
• Features lossless charge measurement without sense resistors and fully configurable I2C direct mode communication.

Power Management - Specialized Applications

• Home and building automation and security systems
• Health and wellness monitoring devices
• IoT sensors and end devices
• Smart accessories and wearables

Power Management - Specialized Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number with official Silicon Labs documentation. Confirm that the specific suffix matches the required electrical characteristics and packaging configuration. Ensure compliance with RoHS standards and check for any product change notifications or obsolescence notices prior to integration into final designs.

Power Management - Specialized Selection Notes

Select this model when a wired boost topology is required for input voltages starting at 1.8 V. Choose this variant over other EFP01 models if the application demands a VOB rail capable of up to 3.3 V rather than lower fixed ranges. Consider the QFN-20 package constraints and thermal dissipation requirements relative to the specified output current limits.

Power Management - Specialized Part Context

This component belongs to the EFP01 Energy Friendly PMIC family, optimized for EFM32 and EFR32 microcontrollers. It serves as a comprehensive power solution for battery-powered wireless SoCs, offering integrated fuel gauging and multiple regulated outputs to maximize system runtime in compact form factors.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing design-in resources before considering alternative components.