S-1312A13-A4T1U3

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

The ABLIC S-1312A13-A4T1U3 is a CMOS linear voltage regulator featuring a 5.5 V maximum input voltage and 150 mA output current capability. It provides a fixed 1.3 V output with ±1.0% accuracy. The device operates within a -40°C to +85°C temperature range, consuming 20 μA during operation and 0.1 μA when powered off. Key electrical parameters include a typical dropout voltage of 160 mV at 100 mA, ripple rejection of 75 dB at 1.0 kHz, and built-in overcurrent and thermal shutdown protection.

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

• Integrates an ON/OFF control circuit for active high logic operation
• Includes internal discharge shunt and pull-down resistor functions
• Features built-in overcurrent protection and thermal shutdown circuits

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

• Constant-voltage power supply for portable communication devices
• Power regulation for battery-powered digital cameras
• Voltage regulation for digital audio players
• Power supply units for home electric appliances

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

Verify the specific package designation HSNT-4 (0808) and the ordering suffix A4T1U3 against official distributor catalogs or manufacturer documentation before finalizing procurement. Confirm that the selected component matches the required environmental code U for lead-free and halogen-free compliance. Ensure compatibility with standard surface-mount assembly processes for the specified package type.

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

Select this component for applications requiring low quiescent current and precise voltage regulation in compact designs. The HSNT-4 (0808) package offers a small footprint suitable for space-constrained PCB layouts. Consider the internal discharge shunt function for rapid output capacitor discharge during power-off states. Verify that external ceramic capacitors meet the minimum capacitance requirements for stability across the operating temperature range.

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

This part belongs to the S-1312 Series developed by ABLIC Inc., utilizing CMOS technology for low current consumption and high ripple rejection. The series supports selectable output voltages from 1.0 V to 3.5 V in 0.05 V steps. The 'A' type designation indicates the inclusion of both discharge shunt and pull-down resistor functions, distinguishing it from other variants in the family.

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

Direct replacements within the same series include S-1312A12-A4T1U3 (1.2 V), S-1312A18-A4T1U3 (1.8 V), S-1312A25-A4T1U3 (2.5 V), and S-1312A33-A4T1U3 (3.3 V). These parts share identical pinouts and functional characteristics but differ in fixed output voltage settings.

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

What is the function of the ON/OFF pin on the S-1312A13-A4T1U3?

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

Does the S-1312A13-A4T1U3 support output capacitor discharge?

Yes, as an 'A' type device, it includes a built-in discharge shunt function that rapidly discharges the output capacitor when the ON/OFF pin is set to the OFF level.