SCT71401F33TYDR

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

The SCT71401F33TYDR is a low-dropout linear regulator from the SCT71401 series, designed for input voltages ranging from 3V to 40V with a 45V transient tolerance. It delivers a fixed 3.3V output at up to 150mA, featuring a typical quiescent current of 2.5µA and an internal soft-start time of 660µs. The device ensures high accuracy with ±1% precision at 25°C and ±2% across -40°C to 125°C. It supports output capacitance between 3.3µF and 220µF (low ESR: 0.001Ω–5Ω) and includes integrated short-circuit protection with over-current folding.

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

• Ultra-low quiescent current of 2.5µA optimizes battery life in portable devices.
• Integrated over-current folding and thermal shutdown enhance system reliability during faults.
• Wide input voltage range accommodates 3V to 40V sources with 45V transient resilience.

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

• Battery-powered handheld devices
• Microcontroller power supplies
• CAN/LIN transceivers

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

Verify the specific suffix 'TYDR' against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required output capacitance values (3.3µF–220µF) and ESR ranges (0.001Ω–5Ω) as defined in the datasheet. Confirm that the fixed 3.3V output aligns with design requirements before procurement.

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

Select this component for applications requiring wide input voltage tolerance and minimal standby power consumption. The 150mA output capability suits low-to-medium load scenarios. Verify that the SOT-23-5 package fits the PCB layout constraints. Consider the 660µs soft-start duration when designing startup sequences for sensitive downstream loads.

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

The SCT71401 series comprises low-dropout regulators offering fixed output voltages including 3.3V and 5V. This specific part provides a stable 3.3V rail. The series is engineered for efficiency in portable electronics, balancing low static current with robust protection features like OCFB and thermal shutdown for industrial and consumer environments.

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

The SGM2203 is documented as a substitute for the SCT71401 series. Verify pinout compatibility and electrical parameter alignment, particularly dropout voltage and quiescent current, before implementing any replacement.

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

What is the maximum transient input voltage supported by the SCT71401F33TYDR?

The device supports a maximum transient input voltage of 45V.

Does the SCT71401F33TYDR include over-current protection?

Yes, it integrates short-circuit protection with over-current folding (OCFB) functionality.