Overview
The STPS1L40M is a 40 V, 1 A low drop power Schottky rectifier produced by STMicroelectronics. This single Schottky rectifier is designed for use in switch mode power supplies and high frequency DC to DC converters. It is packaged in the STmite package, which is ideal for low voltage, high frequency inverters, free-wheeling, and polarity protection applications. The small size of the package makes it suitable for battery-powered equipment such as cellular devices, notebooks, PDAs, printers, chargers, and PCMCIA cards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(AV) (Average forward current) | 1 | A |
| IFSM (Surge non repetitive forward current) | 60 (SMA/SMB), 50 (SOD123Flat) | A |
| VF(typ.) (Forward voltage drop at IF = 1 A) | 0.37 | V |
| Tj(max.) (Operating junction temperature) | 175 | °C |
| Tstg (Storage temperature range) | -65 to +175 | °C |
| Rth(j-l) (Junction to lead thermal resistance) | 30 (SMA), 25 (SMB), 20 (SOD123Flat) | °C/W |
Key Features
- Avalanche capability specified
- Very small conduction losses
- Extremely fast switching
- Negligible switching losses
- Low thermal resistance
- Low forward voltage drop for higher efficiency and extended battery life
- ECOPACK2 compliant
Applications
- Reverse polarity protection
- Set-top box power supply
- TV power supply
- Battery charger
- Low voltage, high frequency inverters
- Free-wheeling applications
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS1L40M?
The maximum repetitive peak reverse voltage is 40 V. - What is the average forward current rating of the STPS1L40M?
The average forward current rating is 1 A. - What are the typical forward voltage drop values for the STPS1L40M?
The typical forward voltage drop at IF = 1 A is 0.37 V. - What is the maximum operating junction temperature for the STPS1L40M?
The maximum operating junction temperature is 175 °C. - What are the package options available for the STPS1L40M?
The device is available in SMA, SMA Flat Notch, SMB, and SOD123Flat packages. - Is the STPS1L40M compliant with environmental standards?
Yes, it is ECOPACK2 compliant. - What are some common applications of the STPS1L40M?
Common applications include reverse polarity protection, set-top box power supply, TV power supply, battery chargers, and low voltage, high frequency inverters. - How does the small package size benefit the use of the STPS1L40M?
The small package size makes it suitable for battery-powered equipment and other compact applications. - What are the thermal management considerations for the STPS1L40M?
The device has low thermal resistance, and thermal management recommendations can be found in the application note AN5088. - Where can I find detailed mechanical data for the STPS1L40M packages?
Detailed mechanical data can be found in the datasheet, specifically in the package information sections.
