R1245S003E-E2-FE

Voltage Regulators - DC DC Switching Regulators Overview

The R1245S003E-E2-FE is a synchronous step-down DC/DC converter manufactured by Nisshinbo Micro Devices, formerly Ricoh Electronic Devices. It operates with an input voltage range of 2.7 V to 6 V and delivers a fixed output voltage of 3.0 V at up to 3 A. The device features a switching frequency of 2 MHz and includes built-in protection mechanisms such as overcurrent, overvoltage, and thermal shutdown. It is housed in a compact HSOP-8E package suitable for space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous PWM step-down topology for high efficiency
• Integrated overcurrent and thermal protection circuits
• Compact HSOP-8E surface mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power conversion
• Battery-powered systems with low input voltage ranges
• Embedded systems needing stable 3.0 V supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on official datasheets, as Nisshinbo Micro Devices acquired Ricoh's semiconductor division. Confirm the specific suffix codes match the required pinout and tolerance specifications. Ensure compatibility with the intended PCB footprint for the HSOP-8E package before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.0 V output is required from a 2.7 V to 6 V input source. The 3 A current capability supports moderate load demands. Consider the 2 MHz switching frequency for smaller external inductor and capacitor sizes compared to lower-frequency alternatives. Verify thermal performance under maximum load conditions within the operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the R1245S series of synchronous buck converters. The series is characterized by high efficiency and compact design, targeting portable electronics. The E2-FE suffix indicates specific packaging and tape/reel configuration details defined by the manufacturer.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct substitutes within the R1245S series with different output voltages or current ratings. Verify pin-to-pin compatibility with other 3A synchronous buck converters in HSOP-8E packages if alternative sourcing is necessary.