S-8520F50MC-BOJT2U

Overview

The S-8520F50MC-BOJT2U is a step-down DC-DC switching controller IC from ABLIC, designed for precise voltage regulation in portable applications. It operates with a fixed output voltage of 5.0 V and supports an output current of up to 21.4 mA. The device features a PWM control mode with a switching frequency of 300 kHz. It functions within a temperature range of -40°C to +85°C and is housed in a compact SOT-23-5 package.

Feature Summary

• Step-down DC-DC switching regulator controller architecture
• Fixed 5.0 V positive output voltage regulation
• PWM control mode operation at 300 kHz switching frequency
• Compact SOT-23-5 surface-mount package design

Applications

• Portable electronic devices requiring stable 5V supply
• Battery-powered systems needing efficient step-down conversion
• Embedded circuits utilizing PWM-controlled power management

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential counterfeits. Confirm RoHS compliance status via official datasheets before integration. Check lifecycle status as obsolete models may require alternative sourcing strategies. Ensure packaging specifications match production requirements for SOT-23-5 reels or cut tapes.

Selection Notes

Select this controller when a fixed 5V output is required without external feedback resistors. Consider the 21.4 mA output limit for load compatibility. Evaluate thermal performance within the -40°C to +85°C operating range. Compare against other S-8520 variants if different output voltages or PFM/PWM switchable modes are needed for specific efficiency targets.

Part Context

Part of the S-8520 series from ABLIC Inc., which includes various step-down switching regulators. This model specifically denotes the 5.0V output variant with BOJT2U suffix indicating package and tape/reel configuration. Related parts include S-8520F45MC-BOET2U (4.5V) and S-8520F50MC-BOJT2U (same function, different suffix notation).

Replacement Considerations

S-8520F45MC-BOET2U offers similar architecture but with 4.5V output. Verify pinout compatibility and electrical parameters before substitution. No direct equivalent part numbers are publicly confirmed for identical 5V specification replacement.