ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 3V 150MA SOT23-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.1V @ 150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：150 µA
- Current - Supply (Max)：250 µA
- PSRR：60dB ~ 50dB (1kHz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
Download product information
Overview
The LD3985M30R is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 3.0 V with a maximum guaranteed output current of 150 mA. The device operates within an input voltage range of 2.5 V to 6 V and utilizes a surface-mount SOT-23 package with five pins. Key electrical characteristics include a typical quiescent current of 85 µA at no load and 170 µA at full load, with a maximum shutdown current of 1.5 µA. The regulator maintains operation across a temperature range of -40 °C to +125 °C.
Feature Summary
- Ultra-low dropout voltage performance for efficient battery-powered applications
- Logic-controlled electronic shutdown function to reduce total power consumption
- Compatible with low ESR ceramic capacitors for stable operation
- Internal protection against overcurrent and thermal overload
Applications
- Mobile phones and similar battery-powered wireless systems
- Portable information appliances
- Low power consumer electronics requiring local regulation
Procurement Notes
Verify the specific suffix 'M30R' corresponds to the 3.0 V fixed output variant in official STMicroelectronics documentation. Confirm the SOT-23-5 package dimensions and pinout match the design requirements. Ensure the supplier source is authorized to guarantee component authenticity and traceability.
Selection Notes
Select this component when a fixed 3.0 V rail is required from a 2.5 V to 6 V input source. It is suitable for designs prioritizing low quiescent current and compact SOT-23 footprint. Consider the LDS3985 if higher output current up to 300 mA is needed, or verify that the 150 mA limit meets the load requirements.
Part Context
This part belongs to the LD3985 family of ultra-low drop, low noise BiCMOS voltage regulators. The series is designed for low power applications where battery life is critical. The M30R designation indicates the specific fixed output voltage setting within the broader product line.
Replacement Considerations
The LDS3985 offers similar functionality but supports up to 300 mA output current. Verify compatibility regarding package size and thermal performance when substituting.
