STMicroelectronics DC-DC Switching Regulator, Adjustable, 18V In, SOIC-8
High-precision STMicroelectronics DC-DC regulator. Adjustable output, 400mA, 18V max input, over-voltage protection. Ideal for SMPS & PFC.
The STMicroelectronics DC-DC Switching Regulator is a high-precision, adjustable voltage regulator designed for demanding power management applications. It offers very precise adjustable output with integrated over-voltage protection, ensuring the safety and reliability of connected components. With a very low typical operating supply current of just 4mA and a startup current as low as 50µA, it is exceptionally efficient for battery-powered or energy-conscious designs.
This advanced regulator features an internal start-up timer for controlled power-up sequences and an on-chip current sense filter to reduce noise and improve signal integrity. A dedicated disable function allows for power saving and system control, while its transition mode operation provides efficient power factor correction (PFC) capabilities. Housed in a compact SOIC-8 surface-mount package, it is ideal for space-constrained printed circuit boards (PCBs).
Key Specifications & Features
- Adjustable Output: Provides very precise and user-configurable output voltage regulation.
- Integrated Protection: Includes built-in over-voltage protection for enhanced circuit safety.
- High Efficiency: Features a low 4mA operating current and 50µA startup current for minimal power drain.
- Advanced Control: Equipped with an internal start-up timer, current sense filter, and a disable function.
- PFC Operation: Supports transition mode operation for Power Factor Correction applications.
- Robust Design: Operates across a wide input voltage range from 11V to 18V and can withstand temperatures from -40°C to 150°C.
- Compact Form Factor: Supplied in a surface-mount SOIC-8 case, measuring 43mm x 33mm x 15mm and weighing just 0.29 grams.
- Switch-mode power supplies (SMPS)
- Power Factor Correction (PFC) circuits
- Battery-powered devices and portable equipment
- Industrial control and automation systems
- Control Function: Adjustable
- Input Voltage Range: 11V to 18V
- Output Current: 400mA
- Operating Supply Current: 4mA typical
- Startup Current: 50µA
- Switching Frequency: 1MHz
- Special Feature: Over-voltage protection
- Special Feature: Internal start-up timer
- Special Feature: On-chip current sense filter
- Special Feature: Disable function
- Mode of Operation: Transition Mode (PFC)
- IC Package: SOIC
- Number of Pins: 8
- Mounting Type: Surface Mount
- Operating Temperature Range: -40°C to 150°C
- Dimensions: 43mm (H) x 33mm (W) x 15mm (D)
- Weight: 0.29 grams
- IC Case / Package: SOIC
- of Pins: 8Pins
- IC Mounting: Surface Mount
- Operating Temperature Min: -40°C
- Operating Temperature Max: 150°C
- SVHC: No SVHC (25-Jun-2025)
- Controller IC Case Style: SOIC
- Frequency: 1MHz
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