ZXSC440X8TA

Overview

The ZXSC440X8TA is a DC-DC boost switching controller designed specifically for photo flash charging applications. It operates within an input voltage range of 1.8V to 8V and features a fixed switching frequency of 200 kHz. The device integrates a current limit circuit and offers low supply current consumption of 220µA. Packaged in an MSOP-8 surface-mount format, it drives external NPN or MOSFET transistors to efficiently charge photoflash capacitors.

Feature Summary

• Optimized for high-efficiency photo flash capacitor charging
• Integrated current limiting for protection
• Low quiescent current operation

Applications

• Photoflash capacitor charger circuits
• Camera module power management
• Portable imaging devices

Procurement Notes

Verify the specific suffix X8TA corresponds to the MSOP-8 package configuration required for your design. Confirm that the component status is acceptable for new designs, as availability may vary. Ensure compatibility with external drive transistors specified in the official datasheet before finalizing procurement orders.

Selection Notes

Select this controller when designing compact camera systems requiring efficient boost conversion from low input voltages. The 200 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the external transistor selection matches the controller's drive capabilities and voltage ratings for reliable operation.

Part Context

This component belongs to the ZXSC440 family of specialized power management ICs developed by Diodes Incorporated. These controllers are engineered for portable electronics where space and efficiency are critical constraints. The series focuses on dedicated applications like flash charging rather than general-purpose power conversion.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.