S-1112B42MC-L7BTFU

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

The S-1112B42MC-L7BTFU is a positive linear voltage regulator from the ABLIC S-1112 series, manufactured using CMOS technology. It provides a fixed output voltage of 4.2 V with an accuracy of ±1.0%. The device supports an output current of up to 150 mA and features a typical dropout voltage of 190 mV at 100 mA. Current consumption is 50 µA during operation and 0.1 µA in power-off mode. It includes built-in overcurrent protection and an ON/OFF control circuit. The component operates within an ambient temperature range of -40°C to +85°C and utilizes a SOT-23-5 surface-mount package.

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

• Built-in low on-resistance transistor enables high output current capability with minimal voltage drop.
• Integrated overcurrent protection circuit limits load current to prevent damage to the output transistor.
• Dedicated ON/OFF pin allows for complete shutdown of internal circuits to minimize standby power consumption.
• Compatible with small ceramic capacitors for phase compensation, facilitating compact board layouts.

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

• Constant-voltage power supply for battery-powered devices
• Power regulation for personal communication equipment
• Voltage stabilization for cellular phone circuits
• Power management for home electric appliances

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

Verify the specific ordering suffix L7BTFU against official ABLIC documentation to confirm tape specifications and environmental codes. Ensure compatibility with the SOT-23-5 package footprint and validate that the input voltage remains within the absolute maximum ratings during procurement planning.

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

Select this component when a fixed 4.2 V output is required with low quiescent current. Verify that the application load does not exceed the 150 mA limit while respecting package power dissipation constraints. Confirm that the input voltage stays above the dropout threshold and that external capacitor values meet stability requirements.

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

This part belongs to the S-1112/1122 Series of high ripple-rejection and low dropout CMOS voltage regulators. The S-1112 variant specifically uses a pin configuration distinct from the S-1122 series within the same SOT-23-5 package. The series is designed for applications requiring stable voltage regulation with minimal external component count.

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

S-1112B42MC-L6FTFG is listed as a parameter equivalent substitute. Verify pinout compatibility and electrical characteristics before substitution.