LDS3985M33R
- Mfr.Part #
- LDS3985M33R
- Manufacturer
- STMicroelectronics
- Package / Case
- SC-74A, SOT-753
- Datasheet
- Download
- Description
- IC REG LINEAR 3.3V 300MA SOT23-5
- Stock
- 2
- In Stock :
- 2
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- STMicroelectronics
- Product Category :
- Voltage Regulators - Linear
- Voltage Dropout (Max) :
- 0.25V @ 300mA
- Pin Count :
- 5
- Accuracy :
- 2 %
- ECCN Code :
- EAR99
- Mounting Type :
- Surface Mount
- Output Voltage :
- 3.3V
- Number of Pins :
- 5
- Current - Supply (Max) :
- 300μA
- Packing Method :
- Tape and Reel
- Voltage - Input (Max) :
- 6V
- Terminal Form :
- Gull wing
- Min Input Voltage :
- 2.5V
- Dropout Voltage1-Nom :
- 0.15V
- Number of Regulators :
- 1
- Terminal Position :
- Dual
- Height :
- 1.3mm
- Mount :
- Surface Mount
- Number of Terminations :
- 5
- Output Configuration :
- Positive
- Radiation Hardening :
- No
- Width :
- 1.6mm
- Lead Free :
- Lead Free
- Protection Features :
- Over Current, Over Temperature
- Output Type :
- FIXED
- Factory Lead Time :
- 14 Weeks
- Number of Outputs :
- 1
- Number of Functions :
- 1
- Operating Temperature :
- -40°C~125°C
- RoHS Status :
- ROHS3 Compliant
- Output Voltage 1 :
- 3.3V
- Min Output Voltage :
- 3.3V
- Packaging :
- Tape and Reel (TR)
- JESD-609 Code :
- e3
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Input Bias Current :
- 85μA
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Control Features :
- Shutdown
- Peak Reflow Temperature (Cel) :
- 260
- Voltage Tolerance-Max :
- 3%
- Quiescent Current :
- 150μA
- Dropout Voltage :
- 150mV
- Max Output Current :
- 300mA
- Base Part Number :
- LDS3985
- Time@Peak Reflow Temperature-Max (s) :
- 30
- PSRR :
- 55dB ~ 50dB (1kHz ~ 10kHz)
- Length :
- 2.95mm
- Package / Case :
- SC-74A, SOT-753
- Lifecycle Status :
- ACTIVE (Last Updated: 7 months ago)
- Output Voltage Accuracy :
- 2 %
- Datasheets
- LDS3985M33R
LDS3985M33R Documents

[Voltage Regulators - Linear] STMicroelectronics LDS3985M33R Overview
Introducing the STMicroelectronics LDS3985M33R, a meticulously crafted linear voltage regulator designed to meet the exacting standards of modern electronics. Engineered with precision and reliability in mind, this integrated circuit (IC) offers a seamless solution for maintaining a stable 3.3V output with a current rating of up to 300mA. Its compact SOT235 package ensures efficient space utilization, making it ideal for applications where size constraints are paramount.
With an unwavering commitment to quality and performance, STMicroelectronics has once again set the benchmark for excellence in voltage regulation technology. Whether you're designing industrial equipment, automotive electronics, or consumer devices, the LDS3985M33R delivers unmatched performance and peace of mind.
LDS3985M33R Features
- Output Voltage: 3.3V
- Output Current: 300mA
- Package: SOT235
- High Accuracy: ±2%
- Low Dropout Voltage: 170mV typ. at 300mA
- Low Quiescent Current: 45µA typ.
- Overcurrent Protection
- Thermal Shutdown
- Short-Circuit Protection
- Wide Operating Temperature Range: -40°C to +125°C
LDS3985M33R Applications
- Industrial Equipment: The LDS3985M33R ensures stable power supply in industrial automation systems, PLCs, and control panels, enabling seamless operation in demanding environments.
- Automotive Electronics: From engine control modules to infotainment systems, this voltage regulator maintains consistent power delivery, enhancing the performance and reliability of automotive electronics.
- Consumer Devices: In portable gadgets, IoT devices, and smart home appliances, the LDS3985M33R provides a dependable power source, prolonging battery life and ensuring uninterrupted functionality.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















