XC9236B1LD4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9236B1LD4R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It features a built-in P-channel MOS driver transistor and N-channel MOS switching transistor, enabling the use of ceramic capacitors for compact designs. The device operates within an input voltage range of 1.8V to 6.0V and provides a fixed output voltage of 1.05V with a maximum output current of 600mA. It supports selectable switching frequencies of 1.2MHz or 3.0MHz and utilizes automatic PWM/PFM switching control for high efficiency across load ranges. The component includes soft-start and current control functions, packaged in a USP-C-EP-6 format.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates built-in P-channel MOS driver and N-channel MOS switching transistors to minimize external component count.
• Employs automatic PWM/PFM switching control to maintain high efficiency from light to heavy loads.
• Supports operation with small-value ceramic output capacitors due to optimized internal resistance.
• Includes internal soft-start and current control circuits for stable power-up and protection.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient battery-powered regulation
• Mobile communication equipment needing compact power solutions
• Consumer electronics utilizing single-cell lithium-ion batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LD4R' against official Torex documentation to confirm the fixed output voltage of 1.05V and the USP-C-EP-6 package type. Ensure compatibility with the 1.8V to 6.0V input range required for your system design. Cross-reference the datasheet for thermal performance characteristics under expected load conditions. Confirm RoHS compliance status if required by your manufacturing standards. Validate that the selected switching frequency aligns with your electromagnetic interference constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this model when a fixed 1.05V output is required without external feedback resistors. Select based on the need for low quiescent current and high efficiency in space-constrained applications. Consider the available switching frequencies to balance between component size and noise performance. Evaluate the thermal requirements relative to the 600mA output capability. Ensure the input voltage range matches the source supply, noting the 1.8V minimum threshold.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9236 series of synchronous rectification type DC/DC converters. The series is designed for applications requiring high efficiency and small footprint. It distinguishes itself through integrated driver transistors and support for ceramic capacitors. The B-type designation indicates a fixed output voltage configuration. The series offers multiple switching frequency options to suit various design priorities.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Verify pinout and electrical specifications before considering any alternative components from other manufacturers. Check for compatible package dimensions and thermal characteristics if substituting.