S-1333C34-M5T1U3

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

The S-1333C34-M5T1U3 is a CMOS positive voltage regulator IC from the S-1333 Series by ABLIC Inc. It operates with an input voltage range of 1.5 V to 5.5 V and provides a fixed output voltage of 3.4 V. The device supports an output current of up to 300 mA, subject to package power dissipation limits. Key electrical characteristics include a typical operating current consumption of 25 μA and a ripple rejection ratio of 65 dB typ. at 1.0 kHz for this output voltage level. It features built-in overcurrent protection and thermal shutdown circuits.

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

• Built-in ON/OFF circuit for controlling operation status
• Internal pull-down resistor on the ON/OFF pin
• Integrated overcurrent protection and thermal shutdown circuits

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

• Constant-voltage power supply for portable communication devices
• Constant-voltage power supply for digital cameras
• Constant-voltage power supply for battery-powered devices

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

Verify the specific product type 'C' configuration, which includes an internal pull-down resistor but lacks a discharge shunt function. Confirm the package designation M5T1U3 corresponds to the SOT-23-5 form factor with tape packing. Ensure environmental compliance requirements match the lead-free and halogen-free specifications indicated by the suffix U3.

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

Select this component when a fixed 3.4 V output is required with low quiescent current. The C-type variant is suitable for designs needing an internal pull-down on the control pin. Verify that the application load does not exceed the 300 mA limit while respecting the package's thermal dissipation constraints under maximum ambient temperature conditions.

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

This part belongs to the S-1333 Series, a family of low dropout regulators developed using CMOS technology. The series offers selectable output voltages in 0.05 V steps ranging from 1.0 V to 3.5 V. The C-type designation specifically defines the availability of the internal pull-down resistor on the ON/OFF pin, distinguishing it from other variants in the same series.

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

Direct substitutes within the S-1333 series include S-1333C33-M5T1U3 (3.3 V) or S-1333C35-M5T1U3 (3.5 V), provided the voltage tolerance allows adjustment.