S-1335C21-N4T1U3

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

The S-1335C21-N4T1U3 is a CMOS positive voltage regulator IC from the S-1335 Series by ABLIC Inc. It provides a fixed output voltage of 2.1 V with an accuracy of ±1.0%. The device supports an input voltage range of 1.5 V to 5.5 V and delivers up to 150 mA of output current. Key electrical parameters include a typical dropout voltage of 70 mV at 100 mA, a ripple rejection ratio of 70 dB at 10 kHz, and a typical operating current consumption of 36 μA. It operates within a temperature range of -40°C to +85°C.

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

• Built-in soft-start circuit ensures controlled output voltage rise time upon power-on or activation.
• Integrated overcurrent protection circuit limits load current to prevent damage to the output transistor.
• Features an ON/OFF control pin that enables low standby current consumption for battery-powered applications.
• Supports stable operation using small ceramic capacitors of 1.0 μF or more for both input and output.

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

• Constant-voltage power supply for digital still cameras
• Constant-voltage power supply for television equipment
• Constant-voltage power supply for cellular phones
• Constant-voltage power supply for portable electronic devices

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

Verify the specific product type suffix 'C' to confirm the presence of the pull-down resistor function and the absence of the discharge shunt function. Ensure the package designation matches SC-82AB requirements for your layout. Confirm environmental compliance codes align with lead-free and halogen-free specifications before finalizing procurement orders.

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

Select this component when a fixed 2.1 V output is required with high accuracy. The C-type variant is suitable for designs needing a pull-down resistor but not a discharge shunt function. Consider the SC-82AB package dimensions for board space constraints. Evaluate thermal dissipation if operating near maximum current limits to ensure reliability within the specified temperature range.

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

This part belongs to the S-1335 Series, which utilizes CMOS technology to achieve low dropout voltage and high-accuracy regulation. The series offers various package options including SOT-23-5, SC-82AB, and HSNT-4 (1010). Different product types (A through M) provide selectable features such as soft-start times and ON/OFF logic configurations to suit diverse application needs.

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

S-1335C22-N4T1U3: Identical features with 2.2 V output. S-1335C20-N4T1U3: Identical features with 2.0 V output. S-1335C25-N4T1U3: Identical features with 2.5 V output.