S-13R1B32-A4T2U3

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

The S-13R1B32-A4T2U3 is a CMOS positive voltage regulator from the S-13R1 series, manufactured by ABLIC Inc. It provides a fixed output voltage of 3.2 V with an accuracy of ±1.0%. The device supports an input voltage range of 2.0 V to 5.5 V and delivers up to 150 mA of output current. Key electrical characteristics include a typical dropout voltage of 0.28 V at 100 mA, a ripple rejection ratio of 70 dB typ., and a low operating current consumption of 5 μA typ. The component operates within a temperature range of -40°C to +85°C.

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

• Integrated reverse current protection function limits reverse current flow from the output to the input pin, eliminating the need for external protection diodes.
• Built-in overcurrent protection circuit safeguards the output transistor against excessive load currents and short circuits.
• Thermal shutdown circuit prevents device damage by stopping regulation when junction temperature exceeds specified limits.
• Discharge shunt function rapidly discharges output capacitance when the ON/OFF pin is set to the OFF level.

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

• Constant-voltage power supply for battery-powered devices
• Power management in portable equipment
• Voltage regulation for home electric appliances
• Power supply circuits for mobile phones

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

Verify the specific ordering suffixes against official documentation to confirm package type and environmental compliance. Ensure that the selected variant matches the required output voltage step and functional configuration, such as the presence or absence of discharge shunt capabilities. Confirm compatibility with standard surface-mount assembly processes for the HSNT-4 package.

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

Select this regulator for applications requiring low quiescent current and high ripple rejection. Consider the thermal dissipation characteristics of the HSNT-4 package when designing for high output currents. Ensure appropriate ceramic input and output capacitors are used to maintain stability and prevent oscillation under varying load conditions.

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

This component belongs to the S-13R1 series of low-dropout regulators designed for portable electronics. The series utilizes CMOS technology to achieve high efficiency and low power consumption. The B-type designation indicates specific internal logic configurations regarding the ON/OFF pin behavior and discharge functions compared to other series variants.

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

Direct substitutes within the same series include S-13R1B32-M5T1U3 (SOT-23-5) and S-13R1B32-N4T1U3 (SC-82AB). Verify pinout compatibility and package dimensions before substituting with components from different manufacturers or series.