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 4.2V 85MA 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)：24V
- Voltage - Output (Min/Fixed)：4.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1V @ 85mA
- Current - Output：85mA
- Current - Quiescent (Iq)：7 µA
- Current - Supply (Max)：8.5 µA
- PSRR：57dB ~ 38dB (100kHz ~ 1kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
Download product information
Overview
The LDK715M42R is a high input voltage, ultra-low quiescent current, and low-dropout linear regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 4.2 V with a guaranteed output current exceeding 85 mA. The device operates over an input voltage range from 4.3 V to 24 V and remains stable when used with output ceramic capacitors ranging from 0.47 μF to 10 μF. Key electrical parameters include a typical quiescent current of 5 μA at full load, a typical low-dropout voltage of 500 mV at 85 mA, and a maximum dropout voltage of 1 V. It features internal short-circuit current limitation for fault protection.
Feature Summary
- Ultra-low quiescent current operation suitable for battery-powered systems
- Stable performance with small-value ceramic output capacitors
- Internal short-circuit current limitation for fault condition protection
Applications
- Low power industrial applications
- Battery-powered systems
- High voltage linear regulation circuits
Procurement Notes
Verify the specific suffix 'M42R' against the manufacturer's official datasheet to confirm the 4.2 V fixed output voltage configuration. Ensure compatibility with the SOT23-5L or DFN8 package options as specified in the product documentation. Cross-reference the part number with authorized distributors to ensure authenticity and traceability.
Selection Notes
Select this component when a fixed 4.2 V output is required within a 4.3 V to 24 V input range. It is appropriate for designs prioritizing low standby power consumption due to its 5 μA quiescent current. Consider the thermal dissipation capabilities relative to the expected load current and ambient temperature conditions.
Part Context
This part belongs to the LDK715 family of high-voltage LDO regulators from STMicroelectronics. The family includes variants with different fixed output voltages such as 3.3 V and 5.0 V. These regulators are designed for robust performance in industrial environments, offering wide input voltage tolerance and stability with ceramic capacitors.
Replacement Considerations
The ST715 series offers similar functionality but supports a lower minimum input voltage of 2.5 V. Verify that the system input voltage does not fall below 4.3 V if substituting with other LDK715 variants or if the ST715 is considered for lower voltage inputs.
