LT3420EMS-1#PBF

Power Management - Specialized Overview

The LT3420EMS-1#PBF is a photoflash capacitor charger IC from Analog Devices, packaged in a 10-pin MSOP. It operates with an input voltage range of 1.8 V to 16 V and delivers an output current of 1 A. The device utilizes a flyback topology and features a switching frequency of 1 kHz. Quiescent current is specified at 90 uA, with a maximum operating temperature of +85 C and a minimum of -40 C.

Power Management - Specialized Feature Summary

• Employs a unique adaptive off-time control algorithm to maintain current-limited continuous mode transformer operation throughout the entire charge cycle.
• Designed for high efficiency in small size photoflash circuits, achieving performance significantly superior to competing flash modules.
• Eliminates high inrush currents commonly found in other modules by regulating transformer operation during charging.

Power Management - Specialized Applications

• Digital camera photoflash circuits
• Film camera photoflash circuits
• High voltage photoflash capacitor charging

Power Management - Specialized Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the MSOP-10 package type matches your PCB footprint requirements. Ensure the 1.8 V to 16 V input range aligns with your system's power supply specifications before finalizing procurement.

Power Management - Specialized Selection Notes

Select this component for applications requiring efficient charging of high-voltage capacitors in compact form factors. The flyback topology supports wide input voltage ranges suitable for single-cell battery systems. Consider the 1 A output capability for standard flash capacitor sizes.

Power Management - Specialized Part Context

This part belongs to the LT3420 series of specialized PMICs designed for camera flash applications. It integrates the necessary control logic for flyback converters into a small surface-mount package, simplifying design implementation for portable imaging devices.

Power Management - Specialized Replacement Considerations

LT3420EMS#PBF is a related variant within the same family. Verify if the '-1' suffix denotes specific electrical tolerances or pinout variations that require direct substitution validation against your schematic.