S-1112B17MC-L6CTFU

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

The S-1112B17MC-L6CTFU is a positive voltage regulator from the S-1112 series, manufactured by ABLIC Inc. It provides a fixed output voltage of 1.7 V with an accuracy of ±1.0%. The device supports an output current of up to 150 mA and operates within an input voltage range of 2.0 V to 6.5 V. It features a typical dropout voltage of 0.28 V at 100 mA and a ripple rejection ratio of 80 dB at 1.0 kHz. Current consumption is 90 µA maximum during operation and 1.0 µA maximum when powered off. The component is housed in a SOT-23-5 package and functions reliably across an ambient temperature range of -40°C to +85°C.

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

• Built-in ON/OFF circuit for power management
• Low dropout voltage design
• High ripple rejection capability
• Integrated overcurrent protection

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

• Constant-voltage power supply for battery-powered devices
• Constant-voltage power supply for personal communication devices
• Constant-voltage power supply for home electric appliances
• Constant-voltage power supply for cellular phones

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

Verify the specific ordering suffix against official documentation to confirm pin configuration and environmental compliance. Ensure that the selected variant matches the required logic level for the ON/OFF control pin. Confirm package type and lead-free status prior to procurement to align with assembly specifications.

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

Select this component for applications requiring a stable 1.7 V rail with low quiescent current. Verify that the input voltage remains within the specified operational limits relative to the output voltage. Ensure adequate thermal management is provided on the PCB to handle power dissipation under maximum load conditions.

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

This part belongs to the S-1112/1122 series of CMOS voltage regulators developed by ABLIC Inc. The series utilizes a low on-resistance P-channel MOSFET output transistor to achieve high efficiency and low dropout characteristics. The S-1112 variant specifically uses a distinct pinout compared to the S-1122 series within the same SOT-23-5 package.

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

S-1112B17MC-L6CTFG

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

How does the ON/OFF pin function in the S-1112B17MC-L6CTFU?

The ON/OFF pin controls the operation of the regulator. For Type B products like this one, applying a High signal turns the regulator ON, while a Low signal turns it OFF, significantly reducing current consumption.

What is the recommended output capacitor for stability?

A ceramic capacitor of 0.47 µF or more with an ESR of 10 Ω or less is recommended for the output capacitor (CL) to ensure phase compensation and stability.