R1280D002C-TR-FE

Overview

The R1280D002C-TR-FE is a CMOS-based, two-channel PWM step-up and inverting DC/DC controller manufactured by Nisshinbo Micro Devices. It operates within an input voltage range of 2.5 V to 5.5 V and delivers a maximum output current of 20 mA. The device features a switching frequency of 700 kHz and consumes an operating supply current of 1.4 mA. Designed for surface-mount applications, it is housed in a compact SON-10 package. The component supports a wide operating temperature range from -40°C to +85°C, ensuring reliable performance in various environmental conditions.

Feature Summary

• Integrates dual-channel PWM control for simultaneous step-up and inverting DC/DC conversion functions
• Utilizes a compact SON-10 surface-mount package design suitable for space-constrained layouts
• Operates with low quiescent current consumption to enhance energy efficiency in portable systems

Applications

• Battery-powered portable electronic devices requiring multiple voltage rails
• Embedded systems needing both positive boost and negative inverting power supplies
• Industrial control modules operating within extended temperature ranges

Procurement Notes

Verify the specific suffix 'C' against the original design specification, as it denotes a distinct variant within the R1280D series. Confirm that the SON-10 package dimensions align with the PCB footprint requirements. Ensure the target application voltage remains within the 2.5 V to 5.5 V input range to maintain stable controller operation. Check for any regional distribution restrictions or obsolescence notices associated with this specific part number before finalizing procurement plans.

Selection Notes

Select this component when a single IC must generate both boosted and inverted voltages from a single input source. It is appropriate for designs prioritizing board space reduction through integrated dual-channel control. Consider the 700 kHz switching frequency for balancing component size and electromagnetic interference. Verify that the external inductor and capacitor selections support the 20 mA output capability without exceeding thermal limits in the intended enclosure.

Part Context

This part belongs to the R1280D series of switching voltage regulators from Nisshinbo Micro Devices. The series focuses on providing flexible power management solutions for small form-factor electronics. The R1280D002C-TR-FE specifically addresses applications requiring combined step-up and inverting capabilities, distinguishing it from single-function regulators in the broader PMIC portfolio.

Replacement Considerations

The R1280D002B-TR-FE is a documented substitute within the same product family. Both parts share identical electrical specifications and pin configurations, allowing for direct replacement in existing designs without circuit modification.