S-1333D29-M5T1U3

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

The S-1333D29-M5T1U3 is a CMOS positive voltage regulator IC from the S-1333 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 2.9 V with an accuracy of ±1.0%. The device supports an input voltage range of 1.5 V to 5.5 V and delivers up to 300 mA of output current. Key electrical characteristics include a typical dropout voltage of 160 mV at 100 mA, a typical operating current consumption of 25 μA, and a ripple rejection ratio of 70 dB typ. at 1.0 kHz. It operates within a temperature range of −40°C to +85°C and is housed in an SOT-23-5 package.

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

• Built-in overcurrent protection circuit limits excessive output current to protect the output transistor.
• Integrated thermal shutdown circuit prevents damage caused by overheating during operation.
• Features an ON/OFF control pin that stops internal circuits to ensure long battery life in portable devices.

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

• Constant-voltage power supply for portable communication devices
• Constant-voltage power supply for digital cameras and digital audio players
• Constant-voltage power supply for battery-powered home electric appliances

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

Verify the specific product type 'D' configuration, which lacks both discharge shunt and pull-down resistor functions, against system requirements. Confirm the output voltage code '29' corresponds to the required 2.9 V level. Ensure the ordering suffix matches the SOT-23-5 package and tape packing specifications. Cross-reference the environmental code 'U' for lead-free and halogen-free compliance before finalizing procurement.

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

Select this component when a fixed 2.9 V output is required with low quiescent current consumption. The D-type variant is suitable for applications where neither discharge shunt nor pull-down resistor functionality is needed. Ensure input capacitors are rated at 1.0 μF or more for stability. Consider the 300 mA output capability while accounting for package power dissipation limits under high load conditions.

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

This part belongs to the S-1333 Series of low dropout voltage regulators developed using CMOS technology. The series offers selectable output voltages from 1.0 V to 3.5 V in 0.05 V steps. The 'D' designation indicates a specific functional configuration without discharge shunt or pull-down resistor features. The M5T1 suffix denotes the SOT-23-5 surface-mount package with tape packing.

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

S-1333D25-M5T1U3 (2.5 V Output)

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

What is the function status of the ON/OFF pin for the S-1333D29-M5T1U3?

The ON/OFF logic is Active High. When the pin is set to the OFF level, the internal circuits stop operating, and the output transistor turns off.

Does the S-1333D29-M5T1U3 have a discharge shunt function?

No, the S-1333 Series D type does not have a built-in discharge shunt circuit. The output voltage remains determined by internal divided resistors when powered off.