R1180Q341B-TR-FE

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

The R1180Q341B-TR-FE is a CMOS-based low dropout regulator from the R1180x series, manufactured by Nisshinbo Micro Devices. It provides a fixed output voltage of 3.4V with an accuracy of ±2.0%. The device supports a maximum output current of 150mA and operates within an input voltage range of 1.7V to 6.0V. Key electrical characteristics include a typical supply current of 1μA and a standby current of 0.1μA when the Chip Enable pin is grounded. It features a built-in fold-back protection circuit limiting short-circuit current to approximately 40mA. The component is housed in an SC-82AB package.

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

• Ultra-low power consumption with typical supply current of 1μA and standby mode current of 0.1μA via the Chip Enable pin.
• High output voltage accuracy of ±2.0% across operating conditions.
• Integrated fold-back protection circuit prevents destruction from excess current during short circuits.
• Compatible with ceramic capacitors for stable operation.

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

• Stable voltage reference
• Power source for battery-powered equipment
• Power source for cameras, VCRs, and camcorders

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

Verify the specific output voltage marking code corresponding to 3.4V on the physical component against the manufacturer's mark specification table. Confirm the presence of the Chip Enable (CE) pin functionality as indicated by the 'B' suffix in the part number. Ensure the SC-82AB package dimensions match the design layout requirements before finalizing procurement.

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

Select this component for applications requiring high density mounting due to the compact SC-82AB package. It is suitable for systems needing ultra-low quiescent current to extend battery life. Designers must ensure the use of ceramic output capacitors to maintain stability, as recommended in the technical notes. Verify that the load current does not exceed the 150mA limit under all operating temperature ranges.

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

This device belongs to the R1180x Series of LDO regulators, which includes variants in SON1612-6 and SOT-23-5 packages. The 'Q' designation specifically identifies the SC-82AB package type. The '341' indicates the fixed 3.4V output setting, while 'B' denotes the inclusion of a Chip Enable pin with active-high logic. This series is designed for CMOS processes to achieve low ON-resistance and high efficiency.

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

R1180Q341C-TR-FE: Identical electrical specifications but lacks the Chip Enable pin.

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

What is the function of the CE pin on the R1180Q341B?

The CE (Chip Enable) pin allows the device to enter a standby mode with ultra-low consumption current (typ. 0.1μA) when pulled to GND. It activates the regulator when set to a high level.

Can ceramic capacitors be used with this regulator?

Yes, ceramic capacitors are recommended for use with this IC. A 0.1μF capacitor is typically used for phase compensation and stable operation.