LD2985BM33R

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LD2985BM33R

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IC REG LINEAR 3.3V 150MA SOT23-5

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Attribut Wert
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 16V
Voltage-Output(Min/Fixed) 3.3V
VoltageDropout(Max) 0.575V @ 150mA
Current-Output 150mA
Current-Quiescent(Iq) 150 µA
Current-Supply(Max) 4 mA
PSRR 45dB (1kHz)
ControlFeatures Enable
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case SC-74A, SOT-753

Übersicht

Description

The LD2985BM33R is a low-dropout (LDO) linear voltage regulator designed by STMicroelectronics. It provides a stable 3.3V output voltage with a maximum output current of 150mA, suitable for powering low-power devices and circuits. The "BM33" refers to the specific voltage version of this regulator, which outputs 3.3 volts.
Key features of the LD2985BM33R include low dropout voltage, low quiescent current, and high output voltage accuracy. It is particularly effective in battery-powered applications due to its low power consumption. The device offers excellent line and load regulation, ensuring stable performance even with variations in the input voltage or output load.
Protection features of this voltage regulator include current limiting and thermal shutdown, which safeguard the device against overload and overheating conditions. The regulator is commonly available in SOT-23 and other small form-factor packages, making it suitable for compact circuit designs. It is widely used in applications such as portable electronics, communication devices, and other systems requiring efficient voltage regulation with minimal power loss.

Equivalent

The LD2985BM33R is a low-dropout (LDO) linear voltage regulator with a fixed 3.3V output. Equivalent products include:
1. Texas Instruments LP2985-33
2. ON Semiconductor NCP1117-3.3
3. Microchip Technology MCP1703-3302
4. Analog Devices ADM7170-3.3
5. AMS1117-3.3
These equivalents have similar voltage output, current rating, and pin configuration, but it's important to verify specific requirements like dropout voltage and package type for compatibility.

Features

The LD2985BM33R is a voltage regulator by STMicroelectronics. Here are its key features:
1. Output Voltage: Provides a fixed output voltage of 3.3V.
2. Output Current: Capable of delivering up to 150 mA.
3. Low Dropout Voltage: Offers low dropout voltage, enhancing efficiency.
4. Low Quiescent Current: Consumes minimal current during operation, ideal for battery-powered applications.
5. Voltage Stability: Ensures consistent performance with low output voltage variations.
6. Protection Features: Includes internal thermal shutdown and current limiting for safety.
7. Input Voltage Range: Operates over a wide input voltage range, typically between 2.5V to 16V.
8. Package Type: Available in SO-8 package ensuring compact design suitable for space-constrained applications.
9. Temperature Range: Designed to operate efficiently over a wide temperature range, typically from -40°C to +125°C.
10. Applications: Suitable for portable electronics, battery-powered devices, and other applications requiring stable voltage regulation.
These features make it an efficient choice for various electronic applications requiring reliable voltage regulation.

Pinout

The LD2985BM33R is a low-dropout (LDO) linear voltage regulator. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here’s a concise summary of its pin count and function:
1. Pin 1: GND - Ground connection.
2. Pin 2: N/C - No connection; often used for mechanical support.
3. Pin 3: N/C - No connection.
4. Pin 4: VOUT - Regulated output voltage, providing a constant 3.3V output.
5. Pin 5: N/C - No connection.
6. Pin 6: N/C - No connection.
7. Pin 7: EN - Enable pin; driving it high enables the regulator, while driving it low disables the output.
8. Pin 8: VIN - Input voltage, where the unregulated voltage is supplied.
The LD2985BM33R is designed for applications requiring a stable 3.3V output, with low dropout and low quiescent current, making it suitable for battery-powered devices.

Manufacturer

The LD2985BM33R is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. Founded in 1987 through the merger of SGS Microelettronica of Italy and Thomson Semiconducteurs of France, the company is headquartered in Geneva, Switzerland. STMicroelectronics provides solutions for various applications, including industrial, automotive, personal electronics, and communications equipment. It is known for its innovation in microcontrollers, sensors, power management devices, and other electronic components that are crucial for modern electronic systems.

Application

The LD2985BM33R is a low-dropout voltage regulator primarily used in applications requiring precise voltage regulation with low power consumption. Common application areas include portable and battery-powered devices like smartphones, tablets, and wearables, where its efficiency extends battery life. It is also used in consumer electronics, telecommunications equipment, and industrial automation systems. Its low dropout voltage makes it suitable for powering microcontrollers and other digital circuits in embedded systems. Additionally, it finds use in automotive electronics for stable power supply under varying conditions. The LD2985BM33R’s small form factor and reliability make it ideal for applications needing compact design and stable performance.

Package

The LD2985BM33R is a low-dropout voltage regulator in a SOT-89 package. The package type is SOT-89, which is a small, surface-mount package suitable for space-constrained applications.

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