XC9237C19D4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C19D4R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It features a fixed output voltage of 1.9 V with an accuracy of ±2.0%. The device supports a maximum output current of 600 mA and operates within an input voltage range of 2.0 V to 6.0 V. It utilizes current-mode control with pulse width modulation, offering a selectable switching frequency of 1.2 MHz or 3.0 MHz. The IC is housed in a compact WLP-5 package (WLCSP) and is rated for operation between -40 °C and +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture integrating P-channel and N-channel MOS transistors for high efficiency
• Manual switching between PWM and auto-PWM/PFM modes for optimized performance across load ranges
• Internal oscillator allows selection of 1.2 MHz or 3.0 MHz switching frequencies
• Built-in overcurrent protection, output discharge, and protection lockout functions

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded circuits needing stable 1.9 V logic supply rails
• Compact consumer electronics with strict size constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix D4R against official Torex documentation to confirm the exact output voltage setting and packaging configuration. Ensure compatibility with the required switching frequency selection pins. Cross-reference the datasheet for thermal performance limits in the WLP-5 package. Confirm RoHS compliance status through manufacturer certification documents prior to integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.9 V output is required from a 2 V to 6 V input source. Choose the XC9237 series over XC9235 or XC9236 if manual mode switching capability is necessary for specific transient response requirements. Consider the WLP-5 package for applications prioritizing minimal board space over higher current capabilities found in larger packages.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of synchronous buck converters from Torex Semiconductor. The series is characterized by low standby current consumption and high efficiency due to integrated power MOSFETs. The 'C' designation indicates a fixed output voltage variant, while the 'D' typically refers to the package type or pin configuration within the product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

XC9237C19DMR-G: Same electrical specifications but in SOT-25-5 package instead of WLP-5.