CATEGORIES

Power Schottky

ST power Schottky diodes combine low voltage-drop characteristics with negligible or zero recovery. Their range spans 15 to 200 V voltages and 1 to 240 A currents. It covers all application needs from low voltage OR-ing and 48 V converters, to higher voltage battery chargers and welding equipment.

Power Schottky symbol

Power Schottky diodes are part of the STPOWER range.

Main applications:

Product types:

High temperature power Schottky diodes like the STPS20H100 are designated with an “H” and offer a 175°C junction temperature. They provide greater design headroom in terms of case temperature and leakage current, and 100-200 V high-voltage performance, useful for applications like compact 12 V / 24 V converters.
Low Vf power Schottky diodes offer the lowest voltage drop and are specified with a 150°C max. junction temperature.
They excel in low voltage SMPS rectification with their 20-60 V range.
ST medium Vf and IR power Schottky diodes harness the leakage current of low-voltage devices.
These devices offer a 150°C junction temperature and enable power efficiency and high current density in restricted-space designs.

New trench Schottky diodes:

The newest ST Schottky diode range on the market covers 28 devices in 100V trench technology at medium power (1 to 15 A).

A prime example of how these new trench devices increase power density is the 8 A, 100 V STPST8H100SF, with low voltage drop and the ability to fit in a compact PSMC package, which is generally not possible for conventional 100 V Schottky diodes. The trench diode design benefits applications from tiny appliance adaptors (STPST8H100SF has a 30 mm² footprint) to automotive power actuators (-SFY suffix for this 8-amp device). Together with the D2PAK and PSMC surface mount power housings, the slimmer 1-mm SOD123Flat, SOF128Flat, and SMB Flat packages enable considerably smaller circuit module designs.

Main Schottky range:

ST Schottky diodes offer flexible package options in various through-hole and surface mount outlines. The new PowerFLAT package enables higher power density for 30 V and 45 V bypass diodes, and is ideal for solar panel junction boxes. Power Schottky rectifiers rated at 60 V, 80 V, 100 V, and 120 V are now available in the narrow-lead TO-220AB through-hole package that allows flush placement on a PCB, which is ideal for slim-design notebook adapters.

The new SMA Flat, SMB Flat, and PSMC packages are tailored for power Schottky rectifiers in slim equipment designs. SMA Flat and SMB Flat can be used in LED lighting, battery-powered equipment, consumer, and power converters in harsh industrial environments. The packages are covered by our 10-year longevity commitment and are compatible with reflow and wave-soldering (notch).

An excellent example is the STPS3170 with a 100-mV reduction in voltage drop and lower switching losses, which no bipolar diode can achieve. These features render this new 3 A 170 V SMA Flat Schottky diode ideal for high frequency and hot operating conditions, such as LED lighting.

Discover our portfolio

Trench Schottky diode range:
The 100 V trench Schottky diodes are available in surface mount versions covering a total of 28 industrial and automotive-grade devices. The packages and current ratings fulfill the requirements for compact converters, including SMPS and automotive auxiliary supplies and actuators.

Power Schottky portfolio

Benefits

  • Lower forward voltage
  • Greater integration
  • Higher power integration
  • Widest range of packages on the market

Ultra Low Vf 100V Power Schottky Trench diodes

These 100V trench diodes are designed for both industrial and automotive applications. The package offer from SOD123Flat to DPAK provides flexible solutions while supporting higher power density designs and improve overall application performance. The product range includes AEC-Q101 qualified devices. Wide Tj operating range from -40°C to 175°C is fully compatible with the Automotive applications requirements. All packages achieves ECOPACK compliance.

Only 1-mm thick, new Schottky diodes for lighter and slimmer power modules

Housed in the SOD123Flat, SOD128Flat – 1 mm thick only (12 and 26 mg) – ST’s 40, 60, 100 V power Schottky rectifiers are tailored for miniature LED lighting, battery-powered equipment, power converters, motor drives and equipment installed in harsh industrial environments thanks to a Tj range from –40 to 175 °C.
Almost 60% thinner than the standard SMA package – while fully footprint compatible – designers can create lighter and slimmer modules or use these as replacements in existing designs, choosing to increase their application efficiency with the ‘L’ series featuring a low forward voltage drop, or pushing the limit of thermal runaway risk with the high-temperature ‘H’ series.

In addition,  ST’s 40, 60, 100 V and 200V power Schottky rectifiers are now available in the new SMA Flat and SMB Flat packages providing even more power density in 1 mm thick only. They are fully compatible with SMA and SMB PCB footprints and even with SOD128 footprint.

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:
DC/DC
AC/DC
Solar Battery Charger

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
Choose design tool:

AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
Search and sort suitable devices

STPOWER Studio

Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices

Estimate

Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:

Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass

Comparators

Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
Inverting, Non Inverting, Window

Low side Current Sensing

Returns circuit component values
Provides current error graphs

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
Choose design tool:

NFC Inductance

Input geometry and substrate properties
Get antenna impedance

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets