XC9288B0LDPR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9288B0LDPR-G is a synchronous buck converter from the XC9288 series by Torex Semiconductor. It features HiSAT-COT control for stable operation with low-ESR ceramic capacitors. The device supports an input voltage range of 2.5V to 5.5V and delivers a fixed output voltage of 0.85V at up to 1.5A. It operates with a switching frequency of 1.2MHz and maintains a quiescent current of 15µA. The component is housed in a SOT-89-5 package and functions within a temperature range of -40°C to +105°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• HiSAT-COT control architecture enables stable operation using only low-ESR ceramic output capacitors without requiring phase compensation adjustments.
• Integrated PWM/PFM auto-control mode automatically switches between pulse-width modulation and pulse-frequency modulation based on load conditions to optimize efficiency across varying currents.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment needing extended operational life
• Embedded systems utilizing low-voltage logic circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'G' indicates RoHS compliance and halogen-free status as per manufacturer standards. Confirm the SOT-89-5 package variant matches your PCB footprint requirements. Ensure input voltage does not exceed 5.5V to prevent device damage. Check for availability constraints as distribution status may vary by region.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 0.85V output is required from a 2.5V to 5.5V input source. The 1.5A current capability suits moderate load applications. The 1.2MHz frequency allows for compact external inductor selection compared to lower-frequency alternatives. Consider the SOT-89-5 package size relative to available board space.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9288 family of synchronous step-down converters designed for high efficiency and small footprint. The series utilizes CMOS technology to minimize power consumption. The B0L designation specifically identifies the 0.85V fixed output version within the product line, distinguishing it from adjustable or other fixed voltage variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9288 series parts with identical pinouts but different output voltages, such as XC9288B08DPR-G (0.8V) or XC9288B10DPR-G (1.0V), provided the system design accommodates the voltage difference. Verify thermal performance and inductor compatibility when swapping within the series.

Voltage Regulators - DC DC Switching Regulators FAQ

What control method does the XC9288B0LDPR-G use?

It uses HiSAT-COT (High Speed Control Circuitry with Constant On-Time) control, which ensures stability with low-ESR ceramic capacitors.

Is the output voltage adjustable?

No, the XC9288B0LDPR-G provides a fixed output voltage of 0.85V. Adjustable versions exist in the XC9288 series but have different model suffixes.