S-1312A16-A4T2U3

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

The S-1312A16-A4T2U3 is a positive voltage regulator IC from the S-1312 Series, manufactured by ABLIC Inc. It features an input voltage range of 1.5 V to 5.5 V and provides a fixed output voltage of 1.6 V with ±1.0% accuracy. The device supports up to 150 mA output current and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a typical dropout voltage of 160 mV at 100 mA, a ripple rejection of 70 dB typ., and a quiescent current of 20 μA typ. during operation. It utilizes HSNT-4 (1010) packaging.

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

• Built-in discharge shunt function for rapid output capacitor discharge when disabled.
• Integrated overcurrent protection circuit limits excessive output current.
• Thermal shutdown circuit prevents damage caused by overheating.
• ON/OFF pin controls regulator operation to ensure long battery life.

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 digital audio players
• Constant-voltage power supply for battery-powered devices

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

Verify the specific product type 'A' configuration, which includes both discharge shunt and pull-down resistor functions, against system requirements. Confirm the package designation 'A4T2' corresponds to the HSNT-4 (1010) form factor. Ensure environmental compliance codes match project specifications. Cross-reference the exact output voltage setting with the datasheet's product name structure to avoid selection errors.

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

Select this component for applications requiring low current consumption and high ripple rejection in compact designs. The HSNT-4 (1010) package offers a small footprint suitable for space-constrained PCB layouts. Consider the built-in discharge shunt feature if rapid output voltage decay is required upon shutdown. Evaluate thermal dissipation capabilities based on the expected load current and ambient operating conditions.

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

This part belongs to the S-1312 Series of CMOS LDO voltage regulators. The series is characterized by low current consumption, high ripple-rejection ratios, and low dropout voltages. It is designed for use in battery-powered portable electronics where power efficiency and stable voltage regulation are critical. The 'A' type variant specifically integrates both discharge shunt and pull-down resistor functionalities.

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

S-1312A16-M5T1U3

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

What is the function of the ON/OFF pin in the S-1312A16-A4T2U3?

The ON/OFF pin starts and stops the regulator. When set to the OFF level, the internal circuits stop operating, significantly reducing current consumption. In the 'A' type, the pin is internally pulled down to VSS in floating status.

How does the S-1312A16-A4T2U3 handle output capacitance discharge?

It features a built-in discharge shunt circuit that activates when the ON/OFF pin is set to OFF. This circuit rapidly discharges the output capacitance, allowing the VOUT pin to reach the VSS level quickly.