S-1131B19PD-N4ETFG

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

The S-1131B19PD-N4ETFG is a positive fixed voltage regulator from the ABLIC S-1131 Series, featuring a nominal output voltage of 1.9 V with ±1.0% accuracy. It operates within an input voltage range of 2.0 V to 6.5 V and supports up to 300 mA output current. The device incorporates a built-in ON/OFF circuit for power management, achieving low current consumption of 35 µA during operation and 0.1 µA in power-off mode. It utilizes a 6-Pin HSON(A) package and includes overcurrent protection.

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

• Built-in ON/OFF circuit enables significant reduction in current consumption during standby states.
• Integrated overcurrent protection circuit limits load current to prevent damage to the output transistor.
• CMOS technology provides high ripple rejection and low dropout voltage characteristics.

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

• Constant-voltage power supply for DVD and CD-ROM drives
• Constant-voltage power supply for battery-powered devices
• Constant-voltage power supply for personal communication devices

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

Verify that the specific ordering suffix matches the required pin configuration and environmental compliance standards. Confirm the package type corresponds to the design layout requirements. Ensure the selected output voltage aligns precisely with the target application needs before finalizing procurement orders.

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

Select this component when a stable 1.9 V rail is required with integrated enable control. Consider the 6-Pin HSON(A) package for space-constrained designs. Evaluate thermal dissipation capabilities if operating near maximum output currents or under elevated ambient temperatures.

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

This part belongs to the S-1131 Series of middle output current CMOS voltage regulators. The series offers selectable output voltages from 1.5 V to 5.5 V in 0.1 V steps. It is designed for applications requiring high accuracy and low power consumption in portable electronic equipment.

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

S-1131B19UA-N4ETFx (SOT-89-3 package)

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

How does the ON/OFF pin function in the S-1131B19PD-N4ETFG?

The ON/OFF pin controls the operation state. Setting it to a high level activates the regulator, while a low level stops internal circuits and reduces current consumption significantly.

What is the recommended output capacitor for stable operation?

A tantalum capacitor of 2.2 µF or more is recommended to ensure stable operation by providing the necessary equivalent series resistance for phase compensation.