XL1509-ADJ-EV

Voltage Regulators - DC DC Switching Regulators Overview

The XL1509-ADJ-EV is a buck switching regulator IC manufactured by EVVO, designed for efficient DC-DC conversion. It features an adjustable output voltage range from 1.23V to 37V and supports a maximum output current of 3A. The device operates with an input voltage range of 4.5V to 40V and utilizes a fixed switching frequency of 150kHz. It is housed in an 8-SOP package with a width of 3.90mm. The component includes internal frequency compensation and protection mechanisms, functioning as a positive single-output regulator suitable for surface-mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Adjustable output voltage capability ranging from 1.23V to 37V via external feedback network
• Integrated thermal shutdown and over-current protection for enhanced operational safety
• Fixed 150kHz switching frequency with internal oscillator and frequency compensation
• TTL-compatible enable pin with hysteresis for low-power shutdown control

Voltage Regulators - DC DC Switching Regulators Applications

• LCD television and display power supplies
• Digital photo frame systems
• Set-top box power regulation
• Router power management circuits
• Communication equipment power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation EVVO against standard XL1509 datasheets which typically cite XLP or other entities, as this may indicate a specific rebranding or regional variant. Confirm the 3A output rating aligns with the specific silicon revision, as generic XL1509 parts often specify 2A. Ensure the 8-SOP package dimensions match the required PCB footprint. Validate RoHS3 compliance status directly with the supplier documentation prior to integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 40V is required for step-down applications. The adjustable output feature allows flexibility for various load requirements between 1.23V and 37V. Consider the 150kHz switching frequency for balancing component size and efficiency. Verify that the 3A current capability meets the peak load demands of the target circuit, accounting for thermal constraints in the 8-SOP package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XL1509 series of buck converters, which are widely used for general-purpose DC-DC conversion. The series includes fixed voltage variants such as 3.3V, 5V, and 12V, alongside the adjustable version. These regulators are characterized by high efficiency and minimal external component count due to built-in compensation. The XL1509 family is commonly integrated into consumer electronics and industrial control systems requiring reliable power management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include XL1509-ADJ-E1 or similar adjustable variants from original manufacturers like XLP. Verify pin compatibility and electrical specifications, particularly the output current rating, as some generic versions may be limited to 2A. Ensure the replacement maintains the 8-SOP package form factor and 150kHz switching frequency for direct board-level interchangeability without schematic modifications.