BA15DD0WT

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The BA15DD0WT is a discontinued linear voltage regulator from Rohm Semiconductor, classified under PMIC LDO regulators. It provides a fixed positive output of 1.5V with a maximum output current of 2A. The device features a low dropout voltage of 0.45V at full load and includes shutdown functionality for power management. Key electrical parameters include a maximum input voltage of 25V, quiescent current of 0.9mA, and ripple rejection of 55dB. Protection circuits encompass overcurrent, thermal shutdown, and overvoltage protection. It operates within a temperature range of -40°C to 125°C and is housed in a TO-220FP-3 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated shutdown switch for active power control
• Built-in comprehensive protection against overcurrent, thermal overload, and overvoltage conditions
• Low saturation design enabling stable regulation at high currents

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronic devices requiring efficient power management
• Embedded systems utilizing microcontrollers or logic circuits needing stable 1.5V rails
• Industrial control modules operating in extended temperature environments

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

This component has reached End-of-Life (EOL) status and is no longer manufactured by Rohm Semiconductor. Procurement is limited to remaining stock or last-time buy opportunities through authorized distributors. Verify part authenticity carefully due to potential surplus market availability. Ensure compatibility with existing PCB footprints before acquisition, as replacement components may require design adjustments.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component only if legacy system compatibility requires the specific 1.5V fixed output and TO-220FP-3 package form factor. Consider alternative modern LDOs from the same family if new designs are permissible. Evaluate thermal dissipation requirements given the 2A output capability and package thermal resistance. Confirm that the shutdown pin functionality aligns with system power sequencing needs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The BA15DD0WT belongs to Rohm's Standard Fixed Output LDO Regulator series, designed for applications demanding high accuracy and reliability. This series offers various output voltages and current ratings, including 1A and 0.3A variants. The BA15DD0WT specifically targets high-current applications requiring precise voltage regulation and integrated safety features within a robust surface-mountable leaded package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Rohm recommends the BA15DD0WHFP-TR as a substitute. Note that the WHFP variant utilizes an HRP-5 package instead of the original TO-220FP-3, necessitating mechanical and layout modifications during integration.