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BA33C18HFP-TR is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Rohm Semiconductor. Its product description is IC REG LIN 1.8V/3.3V 1A/1A HRP-5. Review the specifications below when checking this part for your BOM.
The BA33C18HFP-TR is a dual-output low-dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor. It provides two fixed output voltages of 1.8V and 3.3V, each capable of delivering up to 1A of output current. The device features a compact 1.7mm package and incorporates built-in over-current protection and thermal shutdown circuits for enhanced reliability. It operates within a temperature range of -40°C to +105°C and offers typical power supply rejection ratio (PSRR) performance of 58 dB.
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix '-TR' indicates tape and reel packaging configuration. Check for obsolescence status as some listings indicate this part may be obsolete; ensure alternative sourcing strategies are in place if production continuity is required.
Select this component when dual isolated LDO outputs are needed in a single package to save board space. Ensure input voltage exceeds the highest required output plus dropout voltage. Verify thermal management requirements given the 1A per channel capability and compact footprint. Confirm compatibility with system noise sensitivity due to the specified PSRR performance.
This part belongs to ROHM's BA33C series of dual-output LDO regulators. It shares architectural similarities with other members like the BA33C25FP but differs in specific output voltage configurations. The HFP package variant denotes a specific surface-mount form factor suitable for automated assembly processes in consumer electronics manufacturing.
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult ROHM official cross-reference guides or contact technical support directly for validated alternatives.
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