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STMICROELECTRONICS LD39115J18R Voltage Regulator

The LD39115J is a high-performance, low noise voltage regulator designed for battery-powered and portable applications. It provides up to 150 mA of output current with an input voltage range of 1.5 to 5.5 V. Featuring ultra low dropout voltage of 80 mV, very low quiescent current (20 μA no load), and excellent noise performance, it ensures stable output and strong power supply rejection. The device supports a wide range of output voltages from 0.8 V to 4.5 V in 100 mV steps, with logic-controlled shutdown and thermal protection, making it ideal for mobile phones, PDAs, and cordless systems.

Authorized Distributors
Source:Newark
Part No:LD39115J18R
Stock:70
Inv Date:06-11-2026
Price: Unit price: $0.636
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Source:DigiKey
Part No:LD39115J18R
Stock:2762
Inv Date:06-11-2026
Price: Unit price: $0.92
Buy/RFQ:
Part No:LD39115J18R
Stock:259
Inv Date:06-12-2026
Price: Unit price: $0.34
Buy/RFQ:
Part No:LD39115J18R
Stock:18111
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:

STMICROELECTRONICS LD39115J18R Voltage Regulator Specifications:

  • Input voltage range: 1.5 V to 5.5 V
  • Output current: 150 mA guaranteed
  • Dropout voltage: 80 mV at 100 mA load
  • Quiescent current: 20 μA no load, 35 pA at 150 mA load
  • Output voltage tolerance: ±2.0% at 25°C
  • Available output voltages: 0.8 V to 4.5 V in 100 mV steps
  • Input noise: 33 μV RMS from 1 kHz to 100 kHz
  • Phases: Flip-chip 4 bumps with 0.8 x 0.8 mm size
  • Temperature range: -40°C to 125°C
  • Power supply rejection: 65 dB at low frequencies
  • Logic-controlled shutdown: Yes
  • Compatible with ceramic capacitor: 1 μF
  • Internal current and thermal limit protection

Buy the STMicroelectronics LD39115J – Reliable Voltage Regulator for Industrial Applications

Order the STMicroelectronics LD39115J online today and enhance your mobile device’s power efficiency. With ultra low dropout, low noise, and configurable output voltages from 0.8 V to 4.5 V, this high-quality regulator ensures stable and efficient power delivery. Its compact flip-chip package, internal thermal and current protection, and simple integration make it ideal for battery-powered applications. Purchase now and upgrade your portable system’s power management with this dependable, low quiescent current voltage regulator designed for optimal performance and reliability.

Buy STMicroelectronics LD39115J now and experience unmatched reliability and performance in mobile and portable device power management.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS LD39115J18R?

You can click on the BUY or RFQ button to purchase LD39115J18R from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part LD39115J18R?

You can download the LD39115J18R datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of LD39115J18R?

STMICROELECTRONICS

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