R1203L071B-TR

Voltage Regulators - DC DC Switching Regulators Overview

The R1203L071B-TR is a PWM step-up DC/DC converter IC designed for white LED applications. It features an adjustable output voltage and supports a maximum output current of 700mA. The device operates within an input voltage range of 1.8V to 5.5V and utilizes a fixed switching frequency of 1.2MHz. It is housed in a compact 6-pin DFN (DFN1616-6B) package with an exposed pad for thermal management. The component functions reliably across a temperature range of -40°C to +85°C, making it suitable for portable electronic devices requiring efficient power conversion.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated PWM control for efficient white LED driving
• Adjustable output voltage capability for flexible design
• Compact surface-mount packaging for space-constrained applications

Voltage Regulators - DC DC Switching Regulators Applications

• White LED lighting drivers
• Portable consumer electronics
• Battery-powered devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the manufacturer part number matches Nisshinbo Micro Devices Inc. specifications exactly. Ensure compatibility with the required DFN1616-6B footprint during PCB layout. Check RoHS compliance status if restricted substances are a constraint for your assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a boost topology is required for LED strings powered by single-cell lithium batteries. The 1.2MHz switching frequency allows for smaller external inductors compared to lower-frequency alternatives. Ensure the load current does not exceed the 700mA switch limit. Consider the thermal performance of the exposed pad design for high-duty-cycle operations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the R1203 series of LED driver ICs from Nisshinbo Micro Devices. The series focuses on efficient power management for lighting applications. The R1203L variant specifically denotes the lead-free or specific package configuration within the broader product line, distinguishing it from other pinouts or thermal options available in the family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other Nisshinbo R1203 variants with compatible pinouts. Verify electrical parameters such as switching frequency and output current against the original design requirements before swapping components.