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Integrated Circuits (ICs)

LD3985M122R

LD3985 Series 150 mA 1.22 V Fixed Low Noise LDO BiCMOS Regulator TSOT-23-5

The STMicroelectronics LD3985 Series is a highly efficient low-dropout (LDO) regulator designed to deliver a fixed output voltage of 1.22 V with a maximum output current of 150 mA. This BiCMOS regulator is optimized for low noise operation, making it ideal for sensitive applications in portable devices and battery-powered systems. Housed in a compact TSOT-23-5 package, the LD3985 operates within a wide input voltage range of 2.5 V to 6 V and features a low dropout voltage of just 2 mV, ensuring

BrandSTMicroelectronics
PackageTSOT-23
Device TypeLDO Voltage Regulators
MountingSurface Mount

Full Specifications

Case/PackageSOT-23
Number of Pins5
Number of Outputs1
Max Output Current550mA
Min Input Voltage2.5V
Max Input Voltage6V
Min Output Voltage1.22V
Accuracy4%
Dropout Voltage2mV
Lifecycle StatusProduction
MountSurface Mount
Input Bias Current85µA
Max Operating Temperature125°C
Min Current Limit300mA

About This Product

The STMicroelectronics LD3985 Series is a highly efficient low-dropout (LDO) regulator designed to deliver a fixed output voltage of 1.22 V with a maximum output current of 150 mA. This BiCMOS regulator is optimized for low noise operation, making it ideal for sensitive applications in portable devices and battery-powered systems. Housed in a compact TSOT-23-5 package, the LD3985 operates within a wide input voltage range of 2.5 V to 6 V and features a low dropout voltage of just 2 mV, ensuring stable performance even under varying load conditions.

What is this product used for?

Suitable for design, repair, and production programs using LDO Voltage Regulators devices.

Key Features

  • Case/Package: SOT-23
  • Number of Pins: 5
  • Mount: Surface Mount
  • Lifecycle Status: Production
  • Number of Outputs: 1
  • Max Output Current: 550mA

Typical Use Cases

Power Management ICs LDO Voltage Regulators TSOT-23 LDO Voltage Regulators

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RFQ Checklist

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Target Quantity Sample, pilot run, or mass production volume
Project stage Prototype, NPI, or ongoing production
Target price Budget or target price range if available
LD3985 Series 150 mA 1.22 V Fixed Low Noise LDO BiCMOS Regulator TSOT-23-5

LD3985M122R

STMicroelectronics

The STMicroelectronics LD3985 Series is a highly efficient low-dropout (LDO) regulator designed to deliver a fixed output voltage of 1.22 V with a maximum output current of 150 mA. This BiCMOS regulator is optimized for low noise operation, making it ideal for sensitive applications in portable devices and battery-powered systems. Housed in a compact TSOT-23-5 package, the LD3985 operates within a wide input voltage range of 2.5 V to 6 V and features a low dropout voltage of just 2 mV, ensuring

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