S-1170B33UC-OTSTFU

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

The S-1170B33UC-OTSTFU is a fixed positive linear low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It belongs to the S-1170 series and provides a fixed output voltage of 3.3 V with a maximum output current capability of 800 mA. The device operates within an input voltage range of 2 V to 6.5 V and features a typical quiescent current of 80 µA. It utilizes a surface-mount SOT-89-5 package and is rated for operation across a temperature range from -40 °C to +85 °C.

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

• Provides stable regulated output voltage with high ripple rejection capabilities
• Operates with ultra-low standby current consumption for battery efficiency
• Maintains regulation under varying load conditions with low dropout voltage
• Integrated thermal protection circuitry prevents damage during overload

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

• Portable electronic devices requiring efficient power management
• Battery-powered equipment needing extended operational life
• Embedded systems utilizing CMOS logic circuits
• Automotive electronics components requiring reliable voltage regulation

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

Verify the specific suffix codes against official manufacturer documentation to ensure correct output voltage, package type, and environmental rating. Confirm RoHS compliance status and lead-free specifications prior to ordering. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Ensure storage and handling procedures meet ESD sensitivity requirements for surface-mount devices.

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

Select this component when a fixed 3.3 V supply is required with moderate current demands up to 800 mA. Consider the SOT-89-5 package for applications where board space is limited but thermal dissipation needs exceed smaller packages. Evaluate input voltage ranges to ensure the dropout voltage remains within acceptable limits for the specific application load. Compare quiescent current specifications against other LDO options if battery longevity is a critical design constraint.

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

This regulator is part of the broader S-1170 family of CMOS LDO regulators designed for general-purpose and automotive applications. The series offers various fixed output voltages and packaging options to suit different system requirements. ABLIC designs these components to balance performance, size, and power efficiency for modern electronic systems.

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

Direct substitutes include other S-1170 series variants with identical pinouts and electrical characteristics but different output voltages or suffixes. Verify compatibility with existing PCB footprints and thermal management solutions before swapping components.