S-1132B29-U5T1U

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

The S-1132B29-U5T1U is a positive voltage regulator from the S-1132 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 2.0 V to 6.5 V and delivers up to 300 mA of output current. It operates within a temperature range of −40°C to +85°C and features a typical dropout voltage of 130 mV at 100 mA for 3.0 V products. Current consumption is 20 μA typ. during operation and 0.01 μA typ. when powered off. The component utilizes a SOT-89-5 package.

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

• Built-in overcurrent protection circuit limits output current to prevent damage.
• Integrated ON/OFF circuit enables significant reduction in current consumption during power-off states.
• Compatible with small ceramic capacitors of 0.1 μF or more for both input and output stabilization.

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

• Power supply for battery-powered devices
• Power supply for personal communication devices
• Power supply for home electric appliances
• Power supply for cellular phones

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

Verify the specific ordering suffix U5T1U corresponds to the SOT-89-5 tape packaging format. Confirm environmental compliance codes match project requirements, specifically ensuring the selection of lead-free (Sn 100%) and halogen-free variants as indicated by the 'U' code. Cross-reference the product type 'B' to ensure the ON/OFF pin logic aligns with the system design before finalizing procurement orders.

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

Select this component for applications requiring low dropout performance and high ripple rejection. Ensure the input capacitor meets the minimum 0.1 μF requirement to prevent oscillation. Evaluate thermal dissipation constraints carefully, as maximum output current capability depends on package power dissipation limits. Verify that the load current does not exceed specifications under varying ambient temperatures.

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

This part belongs to the S-1132 Series, which includes various output voltages selectable in 0.1 V steps. The series is designed based on CMOS technology to achieve low current consumption and high-density mounting capabilities. Other packages available in the series include SOT-23-5 and SNT-6A(H), offering flexibility for different board space requirements while maintaining consistent electrical characteristics.

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

S-1132B29-M5T1U

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

How does the ON/OFF pin function for the 'B' product type?

For the 'B' product type, the ON/OFF pin operates with positive logic. Setting the pin to a high level turns the regulator ON, while setting it to a low level turns it OFF, significantly reducing current consumption.

What are the recommended external capacitor values?

Both the input capacitor (CIN) and the output capacitor (CL) should be 0.1 μF or more. Ceramic capacitors are recommended, and the equivalent series resistance (ESR) of the output capacitor must be 2.0 Ω or less to ensure stability.