XC9235B2MC4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9235B2MC4R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It operates within an input voltage range of 1.8V to 6.0V and delivers a fixed output voltage of 2.0V at up to 600mA. The device utilizes a 3.0MHz switching frequency and is housed in a compact 6-USPEL (1.8x2mm) surface-mount package. Key electrical characteristics include a typical quiescent current of 1.0µA in standby mode and a fast soft-start time of 0.25ms. It functions reliably across an ambient temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates P-channel and N-channel MOS transistors for high-efficiency synchronous rectification
• Supports ceramic output capacitors due to optimized internal control circuitry
• Features ultra-low standby current consumption with complete circuit shutdown
• Includes built-in protection mechanisms such as overcurrent limiting and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices requiring efficient power management
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Low-voltage digital logic circuits needing stable 2.0V supply rails
• Compact consumer electronics where minimal PCB footprint is critical

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'C4R-G' corresponds to the 6-USPEL package and reel packaging configuration. Confirm that the fixed 2.0V output aligns with system requirements, as this variant does not support external resistor adjustment. Ensure compatibility with 3.0MHz switching frequency constraints regarding passive component selection and EMI considerations during integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 2.0V output is required from a 1.8V-6.0V source. The 600mA capacity suits moderate load applications. The 3.0MHz frequency allows for smaller inductors compared to 1.2MHz variants. Verify that the 6-USPEL package fits the design layout. Consider the 0.25ms soft-start if rapid power-up sequences are necessary for the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9235 series of synchronous buck converters. The 'B' designation indicates a fixed output voltage variant, while 'C' specifies the 1.8V-6.0V input range. The '2' denotes the 2.0V output level. The 'M' identifies the USPEL package type. This series is designed for space-constrained portable applications requiring high efficiency and low standby current.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include XC9235B1MC4R-G (1.0V output) or XC9235B25MC4R-G (2.5V output) if voltage adjustments are permissible. Cross-series replacements like the XC9236 or XC9237 offer similar pinouts but differ in control modes (PFM/PWM). Verify package compatibility and electrical parameters before substitution.