The STMicroelectronics LDK220 series is a family of low-dropout (LDO) voltage regulators that are designed to provide a stable output voltage with low noise and low quiescent current. The series includes the LDK220C and LDK220M models, each with different packages and output voltage options
STMicroelectronics LDK220 series Linear Voltage Regulators
Comprehensive Guide to LDK220 Integrated Circuits (ICs) Linear Voltage Regulators
In this post, you will find the Key Component Features, Diverse Applications, Associated Series Parts, Technical Documents(PDF Datasheets, User Guides), Frequently asked questions, and Related Series of STMicroelectronics LDK220 series Linear Voltage Regulators products.
FEATURES
- Input voltage from 2.5 to 13.2 V
- Very low-dropout voltage (100 mV typ. @ 100 mA load)
Applications
- Industrial transport (non-car & non-light truck)
- Medical
Associated Products
| Part Number | Description | Stock | RFQ |
|---|---|---|---|
| LDK220M36R | STMICROELECTRONICS - LDK220M36R - Regulador de Tensión Fija LDO, 2.5V a 13.2V, 200mV de Caída, 3.6Vout, 200mAout, SOT-23-5 | 2220 | BUY |
| LDK220M33R | IC REG LINEAR 3.3V 200MA SOT23-5 | 60000 | RFQ |
| LDK220C50R | STMICROELECTRONICS LDK220C50R Fixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 5Vout, 200mAout, SOT-323-5 | 15236 | BUY |
| LDK220C40R | STMICROELECTRONICS LDK220C40RFixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 4Vout, 200mAout, SOT-323-5 | 6087 | BUY |
| LDK220C27R | STMICROELECTRONICS LDK220C27RFixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 2.7Vout, 200mAout, SOT-323-5 | 6472 | BUY |
| LDK220C33R | LDO Regulator Pos 3.3V 0.2A 5-Pin SOT-323 T/R | 42000 | BUY |
| LDK220PU27R | STMICROELECTRONICS LDK220PU27RFixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 2.7Vout, 200mAout, DFN-6 | 820 | BUY |
| LDK220C-R | IC REG LIN POS ADJ 200MA SOT323 | 3000 | BUY |
| LDK220PU-R | STMICROELECTRONICS LDK220PU-R LDO Voltage Regulator, Adjustable, 13.2V in, 200mV drop, 0.2A out, DFN-6 | 148 | BUY |
| LDK220M40R | STMICROELECTRONICS LDK220M40RFixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 4Vout, 200mAout, SOT-23-5 | 3000 | RFQ |
| LDK220U50R | IC REG LINEAR 5V 200MA SOT89 | 10000 | RFQ |
| LDK220M25R | IC REG LINEAR 2.5V 200MA SOT23-5 | 6000 | BUY |
| LDK220M27R | STMICROELECTRONICS LDK220M27RFixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 2.7Vout, 200mAout, SOT-23-5 | 29855 | BUY |
| LDK220U33R | LDO Regulator Pos 3.3V 0.2A 4-Pin(3+Tab) SOT-89 T/R | 35000 | BUY |
| LDK220PU33R | IC REG LINEAR 3.3V 200MA 6DFN | 60000 | RFQ |
| LDK220M50R | IC REG LINEAR 5V 200MA SOT23-5 | 0 | RFQ |
| LDK220PU40R | STMICROELECTRONICS LDK220PU40RFixed LDO Voltage Regulator, 2.5V to 13.2V, 200mV Dropout, 4Vout, 200mAout, DFN-6 | 33000 | BUY |
| LDK220M32R | IC REG LINEAR 3.2V 200MA SOT23-5 | 35355 | BUY |
| LDK220M30R | IC REG LINEAR 3V 200MA SOT23-5 | 6000 | RFQ |
| LDK220M-R | STMICROELECTRONICS LDK220M-R LDO Voltage Regulator, Adjustable, 2.5V to 13.2V input, 200 mV drop., 0.2A out, SOT-23-5 | 42000 | RFQ |
Technical Documents
- LDK220 Datasheet
- Power Management Handheld,Portable Guide
- LDK220U50R-STMicroelectronics-datasheet-78844600.pdf
Frequently Asked Questions
What are the similar products or Substitute Components of STMicroelectronics LDK220 series Linear Voltage Regulators
LM317: The LM317 from Texas Instruments is a popular general-purpose linear voltage regulator. It provides adjustable output voltage and can deliver currents up to 1.5A. It is widely used in various applications and is available in different package options. LT1083: The LT1083 from Linear Technology (now part of Analog Devices) is a high-current, adjustable linear voltage regulator. It can provide output currents up to 7.5A and offers low dropout voltage and thermal overload protection. L78xx Series: The L78xx series from STMicroelectronics includes fixed voltage linear regulators, such as L7805 (5V), L7812 (12V), etc. These regulators provide fixed output voltages and are widely used in many applications requiring a specific voltage level.
how to choose the right voltage regulator for my application
Input voltage and output voltage: Ideally, you should know the input voltage range and the required output voltage that you will be working with. Each voltage regulator chip is designed to be used for a specific output voltage. For example, in a device running off 120VAC power that has a 5V Raspberry Pi controller, 12V servo motors and a 24V stepper motor, you would need to use 5V, 12V and 24V voltage regulators to ensure that everything runs smoothly





