XC9135B43CDR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9135B43CDR-G is a synchronous step-up DC/DC converter manufactured by Torex Semiconductor. It features a built-in 1A driver transistor and load disconnection function. The device operates with an input voltage range of 650mV to 5.5V, providing a fixed output voltage of 4.3V. Key electrical parameters include a maximum output current of 500mA, a switching frequency of 1.2MHz, and a typical operating supply current of 37uA. The static current is specified at 36uA. It supports a shutdown mode and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current 1A driver transistor for efficient power delivery in compact designs.
• Includes a load disconnection function to prevent battery drain when the system is off.
• Operates as a synchronous rectifier to improve conversion efficiency compared to standard diode-based solutions.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring step-up voltage regulation
• Mobile communication equipment utilizing single-cell lithium-ion or lithium-polymer batteries
• Handheld instruments needing stable voltage from low-input sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'B' indicates the correct output voltage setting of 4.3V against your design requirements. Confirm the package type USP-B-EP-10 matches your PCB footprint. Ensure the manufacturer is Torex Semiconductor to guarantee component authenticity and performance specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 4.3V output is required from a wide input range starting below 1V. Consider the 1A internal switch capability for moderate load demands. Evaluate the 1.2MHz switching frequency for compatibility with external component sizes. Compare static current levels against ultra-low-power alternatives if standby consumption is critical.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9135 series of step-up DC/DC converters from Torex Semiconductor. The series is characterized by built-in driver transistors and load disconnect features. Variants within the series differ primarily by their fixed output voltage settings, determined by the alphanumeric code in the part number.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Other XC9135 variants with different output voltages (e.g., XC9135B33CDR-G) share identical pinouts and functionality but provide different regulated outputs. Direct substitution requires matching the specific output voltage requirement of the target circuit.