LP2950ACDT-3.3RK

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

The LP2950ACDT-3.3RK is a micropower low dropout voltage regulator manufactured by onsemi, designed to maintain regulation with an extremely low input-to-output voltage differential. It features a fixed 3.3 V output with a tight initial tolerance of ±0.5%. The device supplies output currents in excess of 100 mA while maintaining a very low quiescent bias current of 75 µA. It incorporates internal current and thermal limiting protection for robust operation. The component operates within an ambient temperature range of -40°C to +125°C and utilizes a DPAK surface-mount package.

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

• Low quiescent bias current of 75 µA for extended battery life
• Extremely low input-to-output voltage differential
• Internal current and thermal limiting protection
• Requires only a 1.0 µF output capacitor for stability

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

• Battery powered computer systems
• Consumer equipment requiring low power consumption
• Industrial equipment extending useful battery life
• Post-regulator applications for switching power supplies

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

Verify the specific ordering suffix 'RK' against official onsemi documentation, as standard listings typically utilize 'RKG' or 'RG'. Confirm RoHS compliance and Pb-Free status directly from the manufacturer's datasheet. Ensure the DPAK package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

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

Select this component when a fixed 3.3 V output with high precision (±0.5%) is required alongside minimal ground current consumption. The DPAK package provides efficient thermal dissipation for surface-mount designs. Consider the LP2951 variant if additional features such as programmable output voltage, shutdown control, or error flagging are necessary for the application design.

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

This part belongs to the LP2950 series of micropower voltage regulators. The 'A' suffix indicates enhanced output voltage precision compared to standard versions. The DT suffix denotes the DPAK surface-mount package configuration. This series is engineered specifically for applications where minimizing power loss and maximizing battery duration are critical design constraints.

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

LP2950CDT-3.3G

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

What is the maximum input voltage for the LP2950ACDT-3.3RK?

The maximum rated input voltage is 30 Vdc.

Does the LP2950ACDT-3.3RK include a shutdown pin?

No, the LP2950 does not have a shutdown pin; this feature is available only in the LP2951 variant.