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 4V 200MA SOT-323-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：13.2V
- Voltage - Output (Min/Fixed)：4V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：100 µA
- PSRR：55dB ~ 50dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SOT-323-5
- Grade：-
- Qualification：-
Download product information
Overview
The LDK220C40R is a fixed linear voltage regulator from STMicroelectronics, delivering a constant 4V output with a maximum current of 200mA. It operates within an input voltage range of 2.5V to 13.2V and features low quiescent current of 90µA. The device includes overcurrent and thermal overload protection, ensuring reliability under fault conditions. Packaged in a compact SOT-323-5 surface-mount format, it supports operation across a temperature range of -40°C to +125°C.
Feature Summary
- Provides stable fixed 4V output for sensitive circuitry
- Integrates overcurrent and thermal protection mechanisms
- Features low quiescent current for power efficiency
- Supports wide input voltage range up to 13.2V
Applications
- Battery-powered portable devices requiring efficient regulation
- Embedded systems needing stable 4V logic supply
- Industrial control modules operating in extended temperatures
- Communication equipment requiring low noise power sources
Procurement Notes
Verify the specific suffix 'C40' confirms the 4V fixed output variant, as the LDK220 series offers multiple voltage options. Ensure the SOT-323-5 package matches your PCB footprint constraints. Confirm RoHS compliance status if required by your manufacturing standards. Cross-reference the manufacturer part number directly with official STMicroelectronics documentation to avoid counterfeit components.
Selection Notes
Select this component when a precise 4V rail is required from inputs between 2.5V and 13.2V. Its low 90µA quiescent current makes it suitable for battery-operated applications where standby power consumption is critical. The integrated thermal and current protection simplifies design safety margins. Consider the small SOT-323-5 package for space-constrained layouts compared to larger regulator packages.
Part Context
This part belongs to the LDK220 family of low-dropout regulators designed for high performance and low power consumption. The series is characterized by its ability to maintain regulation with minimal voltage difference between input and output. STMicroelectronics utilizes this architecture for applications demanding stability and efficiency in compact form factors, serving both industrial and consumer electronics markets.
Replacement Considerations
Direct substitutes must match the 4V output, 200mA current capability, and SOT-323-5 package. Verify equivalent PSRR and quiescent current specifications. Check pinout compatibility to ensure direct replacement without PCB redesign. Consult official cross-reference lists for validated alternatives.
