XC9237G15D4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237G15D4R-G is a synchronous step-down DC/DC converter from Torex Semiconductor. It features a built-in driver transistor with an on-resistance of 0.42Ω for the high-side and 0.38Ω for the low-side. The device supports an input voltage range of 2V to 6V and provides a fixed output voltage of 1.5V at up to 0.6A output current. It operates with a switching frequency of 3.45MHz and includes a current-mode control architecture. The quiescent current is typically 15µA, and it functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification topology with integrated high-side and low-side driver transistors
• Current-mode control architecture for stable regulation
• Fixed output voltage configuration eliminating external feedback resistors
• Low standby current consumption for power efficiency

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power conversion
• Battery-powered equipment utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded systems with strict space constraints due to compact packaging

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix D4R against official Torex documentation to confirm package type and tape/reel specifications. Ensure the fixed 1.5V output aligns with target circuit requirements as external adjustment is not supported. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V rail is required from a 2V-6V source. The 3.45MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 0.6A current limit for load demands. The SOT-25-5 package suits applications where board area is limited but thermal dissipation needs are moderate.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of synchronous buck converters. The series is characterized by high integration and low quiescent current. Variants in the series differ primarily by output voltage settings and package options. The G-series designation indicates specific electrical characteristics and pinout configurations defined by Torex Semiconductor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9237 variants with compatible output voltages such as XC9237G12D4R-G (1.2V) or XC9237G18D4R-G (1.8V), provided the fixed voltage difference is acceptable. Cross-referencing with similar 600mA synchronous buck converters from other manufacturers requires verifying pin compatibility and thermal performance.