Overview
The LD1085DT-R is a linear voltage regulator IC produced by STMicroelectronics. This component is designed to provide a high-current, low-dropout voltage regulation solution. It is part of the LD1085 series, known for its adjustable and fixed output voltage capabilities. The LD1085DT-R is packaged in a DPAK (TO-252-3) case, making it suitable for surface mount applications. This regulator is lead-free and RoHS compliant, ensuring environmental sustainability and regulatory compliance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | LD1085DT-R | - |
| Manufacturer | STMicroelectronics | - |
| Description | IC REG LINEAR POS ADJ 3A DPAK | - |
| Voltage Dropout (Max) | 1.5V @ 3A | V |
| Voltage - Output (Min/Fixed) | 1.25V | V |
| Voltage - Output (Max) | 28.5V | V |
| Voltage - Input (Max) | 30V | V |
| Supplier Device Package | DPAK (TO-252-3, DPak (2 Leads + Tab), SC-63) | - |
| Protection Features | Over Current, Over Temperature | - |
| Output Type | Adjustable | - |
| Output Configuration | Positive | - |
| Operating Temperature | -40°C ~ 125°C | °C |
| Number of Regulators | 1 | - |
| Mounting Type | Surface Mount | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | - |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant | - |
| Current - Quiescent (Iq) | 10mA | mA |
| Current - Output | 3A | A |
| PSRR | 72dB (120Hz) | dB |
Key Features
- High Current Capability: The LD1085DT-R can deliver up to 3A of output current, making it suitable for high-power applications.
- Low Dropout Voltage: With a maximum dropout voltage of 1.5V at 3A, this regulator minimizes power loss and heat generation.
- Adjustable Output Voltage: The output voltage is adjustable from 1.25V to 28.5V, providing flexibility in various applications.
- Protection Features: Built-in overcurrent and overtemperature protection ensure the regulator's reliability and longevity.
- High PSRR: A Power Supply Rejection Ratio (PSRR) of 72dB at 120Hz indicates excellent noise rejection capabilities.
- Wide Operating Temperature Range: The regulator operates from -40°C to 125°C, making it suitable for a variety of environmental conditions.
- Surface Mount Package: The DPAK package is designed for surface mount applications, facilitating easy integration into modern PCB designs.
- Lead-Free and RoHS Compliant: Ensures compliance with environmental regulations and sustainability standards.
Applications
- Power Supplies: Ideal for use in power supply units requiring high current and low dropout voltage.
- Industrial Control Systems: Suitable for industrial control systems that need reliable and adjustable voltage regulation.
- Automotive Systems: Can be used in automotive applications due to its wide operating temperature range and robust protection features.
- Medical Devices: Applicable in medical devices where high reliability and precise voltage regulation are critical.
- Consumer Electronics: Used in various consumer electronics requiring stable and adjustable voltage regulation.
Q & A
- What is the maximum output current of the LD1085DT-R?
The maximum output current of the LD1085DT-R is 3A.
- What is the minimum and maximum output voltage range of the LD1085DT-R?
The output voltage is adjustable from 1.25V to 28.5V.
- What is the maximum dropout voltage of the LD1085DT-R at 3A?
The maximum dropout voltage is 1.5V at 3A.
- Does the LD1085DT-R have built-in protection features?
Yes, it has overcurrent and overtemperature protection features.
- What is the operating temperature range of the LD1085DT-R?
The operating temperature range is from -40°C to 125°C.
- Is the LD1085DT-R lead-free and RoHS compliant?
Yes, it is lead-free and RoHS compliant.
- What is the package type of the LD1085DT-R?
The package type is DPAK (TO-252-3, DPak (2 Leads + Tab), SC-63).
- What is the quiescent current (Iq) of the LD1085DT-R?
The quiescent current (Iq) is 10mA.
- What is the PSRR of the LD1085DT-R at 120Hz?
The PSRR is 72dB at 120Hz.
- Is the LD1085DT-R suitable for surface mount applications?
Yes, it is designed for surface mount applications.
