R1282D002A-TR-FE

Overview

The R1282D002A-TR-FE is a CMOS-based, two-channel PWM DC/DC controller designed for buck-boost applications. It supports step-up and step-down voltage regulation with a positive output. The device operates within an input voltage range of 2.5 V to 5.5 V and delivers up to 20 mA output current. It features a switching frequency of 700 kHz and includes two independent outputs. The component functions reliably across an operating temperature range of -40°C to +85°C. Packaged in a compact 10-VFDFN (SON-10) surface-mount format, it integrates high-efficiency control logic for portable electronics requiring flexible power management solutions.

Feature Summary

• Dual-channel PWM control architecture enabling simultaneous step-up and step-down regulation
• Buck-boost topology supporting both positive output voltage generation and inversion
• Compact 10-pin VFDFN surface-mount package design for space-constrained PCB layouts

Applications

• Portable electronic devices requiring flexible voltage regulation
• Battery-powered systems needing step-up and step-down capabilities
• Embedded power management circuits in consumer electronics

Procurement Notes

Verify the specific suffix 'TR-FE' against official Nisshinbo Micro Devices documentation to confirm reel packaging and lead-free status. Cross-reference the manufacturer part number with authorized distributor catalogs to ensure authenticity. Confirm that the 10-VFDFN package dimensions match your board layout requirements. Check for any recent lifecycle updates or obsolescence notices directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when dual-channel buck-boost regulation is required within a 2.5 V to 5.5 V input range. Ensure the 700 kHz switching frequency aligns with your EMI constraints and inductor selection. Verify that the 20 mA output current meets the load requirements for both channels. Consider the SON-10 footprint compatibility during the initial schematic capture phase to avoid layout revisions later in the design process.

Part Context

This controller belongs to the R1282D series from Nisshinbo Micro Devices, specialized for multi-output power management. It complements single-channel regulators by providing independent control loops for complex power architectures. The series targets applications demanding high efficiency and small form factors, leveraging CMOS technology for low standby currents and robust performance across varying load conditions.

Replacement Considerations

The R1280D002B-TR-FE is a documented substitute offering similar dual-channel PWM control. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Ensure the replacement maintains the required buck-boost functionality and input voltage range for your specific application.