NJM2841F025-TE2

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

The NJM2841F025-TE2 is a low output voltage, low dropout regulator manufactured by Nisshinbo Micro Devices Inc. It delivers up to 650 mA output current with a fixed 2.5 V output voltage and ±1.0% precision. The device features dual supply voltage inputs (VIN and VBIAS) for sequence-free operation and high stability. Key electrical parameters include a typical dropout voltage of 0.1 V at 300 mA, line regulation of 0.10 %/V, and load regulation of 0.002 %/mA. It incorporates ON/OFF control, thermal overload protection, and over-current protection within an SOT-23-5 package.

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

• Dual supply voltage architecture supporting independent VIN and VBIAS inputs without sequencing requirements.
• Integrated ON/OFF control pin enabling precise power management states.
• Built-in thermal overload protection and over-current protection mechanisms.
• High precision output voltage regulation with ±1.0% tolerance.

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

• Low noise power supplies for sensitive analog circuits
• Bias voltage generation in communication equipment
• Power management in portable electronic devices

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

Verify the specific ordering suffix TE2 against official documentation to confirm the exact package type and reel specifications. Ensure that the required bias voltage range aligns with the application's operational constraints, as VBIAS requirements vary based on the output voltage level. Confirm compliance with RoHS directives and verify the operating temperature range matches the intended environmental conditions before finalizing procurement.

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

Select this component when a stable 2.5 V output is required with high ripple rejection capabilities. Consider the dual supply input feature if improving transient response or ripple rejection through an external bias voltage is necessary. Evaluate the thermal dissipation characteristics relative to the PCB layout, as power dissipation limits depend heavily on the number of copper layers and the exposed pad area available for heat sinking.

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

The NJM2841 series comprises low dropout regulators designed for applications requiring low output voltages between 0.8 V and 2.5 V. Utilizing bipolar technology, these regulators offer high output currents and excellent line/load regulation. The series supports both SOT-23-5 and SOT-89-5 packages, providing flexibility for various board space constraints while maintaining robust performance in power management systems.

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

Consult the manufacturer's official cross-reference documentation for verified substitute part numbers. Ensure any replacement maintains compatibility with the required 2.5 V output, 650 mA current capability, and SOT-23-5 package footprint. Verify that alternative components support the same dual-supply architecture and protection features if system design relies on these specific characteristics.

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

What are the bias voltage requirements for the NJM2841F025?

For an output voltage of 2.5 V, which is greater than or equal to 1.5 V, the bias voltage (VBIAS) must be set between VO+1 V and +10 V. Therefore, VBIAS should be maintained between 3.5 V and 10 V.

How does the ON/OFF control function operate?

The output is enabled when the control voltage (VCONT) is at or above 1.6 V. The output is disabled when the control voltage is at or below 0.6 V, or when the control pin is left open.