R1212D100A-TR-FE

Overview

The R1212D100A-TR-FE is a PWM step-up DC-DC controller IC manufactured by Nisshinbo Micro Devices Inc. It operates within an input voltage range of 1.8 V to 5.5 V and delivers a positive output voltage between 26 V and 29 V. The device functions at a switching frequency of 1.2 MHz and supports an output current of 1 A. It is housed in an 8-SMD, Flat Lead SON package measuring 2.9x2.8 mm. The component is rated for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates PWM control functionality for efficient step-up voltage conversion
• Features a compact surface-mount package design suitable for space-constrained applications
• Supports wide input voltage ranges for flexible power supply integration

Applications

• White LED lighting driver circuits
• Portable electronic devices requiring boost regulation
• Battery-powered systems needing voltage elevation

Procurement Notes

This component is classified as obsolete and is no longer manufactured by Nisshinbo Micro Devices Inc. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary market suppliers. Ensure that any available units are sourced from reputable channels to guarantee integrity, as production has ceased. Cross-reference part numbers carefully to avoid confusion with similar active models.

Selection Notes

Engineers selecting this component must account for its discontinued status. While it offers specific electrical characteristics such as 1.2 MHz switching frequency and integrated MOSFET capabilities, availability is limited. Consider evaluating alternative active parts from the same manufacturer that provide comparable performance metrics if long-term supply stability is required for new designs.

Part Context

The R1212D series represents Nisshinbo's line of LED lighting driver ICs designed for constant current applications. This specific model utilizes a boost topology to drive white LEDs efficiently. The inclusion of an integrated MOSFET simplifies external circuit design by reducing component count. The device is part of a broader portfolio focused on energy-efficient power management solutions for portable electronics.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material due to the component's obsolete status. Users should consult official Nisshinbo Micro Devices documentation for pin-compatible alternatives or functional equivalents within their current active product lines.