BA17807T

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

The BA17807T is a fixed positive linear voltage regulator from the ROHM BA178xx series, providing a nominal output of 7 V. It supports a maximum output current of 1 A and operates within an input voltage range of 9.5 V to 22 V. The device features a TO-220FP (TO-220-3 Full Package) through-hole package with three pins. Key electrical parameters include a line regulation of 15 mV and load regulation of 37 mV. It offers a typical power supply rejection ratio (PSRR) of 78 dB at 120 Hz and maintains a circuit current of approximately 4.5 mA. The component is rated for operation between -40 °C and +85 °C.

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

• Integrated overcurrent protection and thermal shutdown circuits to prevent damage during fault conditions.
• High ripple rejection capability ensures stable output voltage against input noise.
• Fixed positive output configuration simplifies design integration without external resistors.

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

• General-purpose linear power supply circuits requiring a stable 7 V rail.
• Industrial control systems operating in standard commercial temperature ranges.
• Embedded electronics utilizing through-hole mounting for mechanical stability.

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

Verify the specific suffix 'T' indicates the tape-and-reel packaging format rather than bulk, as this affects handling procedures. Confirm RoHS compliance status for the specific batch, as older stock may differ. Check for end-of-life notifications or last-time-buy dates, as the BA178xx series has faced discontinuation trends. Ensure the supplier provides original manufacturer documentation to validate authenticity and traceability.

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

Select the BA17807T when a fixed 7 V output is required with up to 1 A capacity in a robust through-hole package. Consider the minimum input voltage requirement of 9.5 V to ensure sufficient headroom for regulation. Evaluate thermal dissipation needs, as linear regulators dissipate excess energy as heat; the TO-220FP package aids heat sinking but requires adequate PCB copper area or a heatsink for high load currents.

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

The BA17807T belongs to the BA178xx family, which serves as a direct functional equivalent to the industry-standard 78xx series of linear regulators. This family provides reliable, fixed-voltage regulation for various electronic applications. The 'T' suffix typically denotes the specific packaging variant used by ROHM for automated assembly processes.

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

Compatible substitutes include other 7 V linear regulators in the TO-220FP package, such as the STMicroelectronics L7807CT or ON Semiconductor MC7807CD2T. Verify pinout compatibility and thermal performance characteristics before substitution. Note that some equivalents may have different line/load regulation specifications or maximum input voltage ratings.