TPS70145PWP

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

The TPS70145PWP is a dual-output low-dropout (LDO) voltage regulator designed for split-voltage DSP systems. It features two independent linear regulators housed in a 20-HTSSOP package. The device provides fixed output voltages of 3.3V and 1.8V with maximum output currents of 500mA and 250mA, respectively. It operates within an input voltage range of 3.641V to 6V, with a maximum absolute input voltage of 7V. The typical dropout voltage is 0.17V, reaching a maximum of 0.275V. The component supports an operating temperature range from -40°C to 125°C.

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

• Integrated power-up sequencing logic for synchronized startup of dual outputs
• Low dropout performance ensuring efficient regulation under varying load conditions
• Built-in protection mechanisms including overcurrent, thermal shutdown, and reverse polarity protection

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

• Split-voltage digital signal processor (DSP) power supplies
• Multi-rail embedded system power distribution
• Portable electronic devices requiring precise voltage sequencing

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

Verify the specific suffix against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure the procurement channel provides valid traceability for automotive or industrial qualification requirements if applicable. Cross-reference the datasheet revision date to confirm the availability of updated thermal and electrical characteristics before finalizing design integration.

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

Select this component when simultaneous power-up sequencing is required for dual voltage rails in DSP architectures. The fixed 3.3V and 1.8V outputs eliminate external resistor networks, simplifying board layout. Verify that the system input voltage remains within the 3.641V to 6V operational window to maintain regulation. Consider the 20-HTSSOP package dimensions for thermal management and PCB space constraints.

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

This device belongs to the Texas Instruments TPS70x series of dual-output LDOs. It is engineered specifically for applications requiring tight coupling between two voltage domains, such as core and I/O supplies in processors. The integrated sequencing feature distinguishes it from standard parallel LDOs by managing the startup transient automatically.

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

The TPS70145PWPG4 is a lead-free variant of the same functional device. Verify pin compatibility and thermal performance equivalence before substitution.