RP115H131D-T1-FE

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

The RP115H131D-T1-FE is a CMOS-based positive voltage regulator from the RP115x series, featuring a fixed 1.3 V output and 1.0 A current capability. It operates within an input voltage range of 1.4 V to 5.25 V and provides a typical dropout voltage of 0.225 V at full load. The device includes built-in short-circuit current limit, thermal shutdown, and reverse current protection circuits. It utilizes an active-high Chip Enable (CE) pin with auto-discharge functionality and is housed in a SOT-89-5 package.

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

• Integrated reverse current protection circuit prevents backflow when output voltage exceeds input voltage.
• Built-in thermal shutdown and peak current limit circuits protect against overheating and overcurrent conditions.
• Constant slope start-up circuit suppresses inrush current during power-on sequences.
• Auto-discharge function rapidly releases stored charge from external capacitors upon entering standby mode.

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

• Portable communication equipment
• Battery-powered devices
• Cameras and camcorders

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

Verify the specific ordering suffix matches the required configuration. Confirm the package type is SOT-89-5 and that the output voltage is fixed at 1.3 V. Ensure the CE pin polarity is active-high and that the auto-discharge feature is included as indicated by the 'D' suffix. Cross-reference the manufacturer part number with official distributor catalogs to confirm availability and authenticity.

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

Select this component for applications requiring a fixed 1.3 V rail with up to 1.0 A output current. The SOT-89-5 package is suitable for higher power dissipation scenarios compared to smaller footprints. Consider the 0.225 V typical dropout voltage when designing for low headroom inputs. Verify that the input voltage remains within the 1.4 V to 5.25 V operating range under all conditions.

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

This part belongs to the RP115x series of low-dropout regulators manufactured by Nisshinbo Micro Devices. The series offers various output voltages and packages, including DFN1216-8 and SOT-89-5. The RP115H variant specifically denotes the SOT-89-5 package with a fixed 1.0 A output current limit, distinguishing it from the RP115L series which features an adjustable current limit via an LCON pin.

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

Direct substitutes within the same series include other RP115Hxx1D-T1-FE variants with different fixed output voltages, such as RP115H121D-T1-FE or RP115H151D-T1-FE, provided the voltage requirement differs. No alternative part numbers are confirmed in the source material for direct functional replacement with identical specifications.