STMicroelectronics STPS5L60

Overview

STPS5L60 from STMicroelectronics is a 5 A average forward current, 60 V repetitive peak reverse voltage surface-mount Schottky rectifier optimized for high-frequency DC/DC converters and low-voltage switch-mode power supplies. It features a typical forward voltage drop of 0.42 V at 5 A and 125 °C, low thermal resistance (15 °C/W junction-to-lead in SMC), and avalanche-rated ruggedness for reliable operation in battery chargers and notebook adapters.

For engineers reviewing the STPS5L60 datasheet, STPS5L60 pinout, STPS5L60 application, or STPS5L60 equivalent, key selection criteria include forward voltage at rated current, thermal resistance under PCB copper area constraints, avalanche energy handling, reverse leakage at elevated temperature, and package-specific derating curves for SMB Flat Notch, SMB, SMC, and DO-201AD variants.

Technical Context

This Schottky rectifier operates without minority-carrier storage delay, eliminating switching losses in high-frequency topologies up to several hundred kHz. Its metal–semiconductor junction enables fast recovery (effectively zero reverse recovery time) and low conduction loss, critical for efficiency in compact 5–20 W AC/DC adapters and telecom battery chargers.

The device's thermal performance is defined per package variant: R_th(j-l) = 15 °C/W (SMC, DO-201AD, SMB Flat Notch), 20 °C/W (SMB); R_th(j-a) ranges from 75 °C/W (DO-201AD, no copper) to <3.5 °C/W (SMC with 140 cm² copper). Avalanche rating supports transient overvoltage events up to 144 W (10 µs pulse, T_j = 125 °C).

Key Specifications

Pinout & Package

STPS5L60 is offered in four discrete packages: DO-201AD (axial leaded), SMB, SMC, and SMB Flat Notch (all surface-mount). All variants are 2-terminal devices: Anode and Cathode. No internal circuitry or control pins - purely passive rectification function.

Key Features

Applications

Availability

STPS5L60 is available at Aetrix Electronics and suitable for battery chargers, DC/DC converters, lighting drivers, and notebook adapters requiring stable component supply across multiple package variants (SMB Flat Notch, SMB, SMC, DO-201AD).

Supply support for STPS5L60 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

The STPS series targets high-efficiency, space-constrained power conversion applications; STPS5L60 specifically addresses the need for low-VF, avalanche-robust Schottky rectifiers in sub-60 W SMPS designs.

FAQ

What is the maximum junction temperature for continuous operation?

The STPS5L60 has a maximum operating junction temperature of +150 °C, validated under conditions where (dP_tot/dT_j) < (1/R_th(j-a)) to prevent thermal runaway. Derating is required above 100 °C ambient depending on package and PCB copper area - see Figures 2, 11–13 in DS2741 Rev 5.

Which package offers the best thermal performance in surface-mount applications?

The SMC package delivers the lowest thermal resistance: R_th(j-l) = 15 °C/W and R_th(j-a) ≤ 4.5 °C/W with ≥140 cm² of 35 µm copper per lead. SMB Flat Notch follows closely (R_th(j-a) ≤ 5.0 °C/W at 200 cm²), while standard SMB reaches only ~7.5 °C/W under identical conditions.

Can STPS5L60 replace a standard silicon rectifier in an existing 60 V design?

Yes - but only if reverse voltage stress remains ≤60 V and layout accommodates Schottky's higher reverse leakage (up to 100 µA at 125 °C). Unlike silicon diodes, it cannot block >60 V or withstand >150 °C junction temperature; verify thermal margin using P = 0.39×I_F(AV) + 0.028×I_F(RMS)².

Is STPS5L60 suitable for synchronous rectification topologies?

No - STPS5L60 is a passive Schottky rectifier, not a synchronous MOSFET controller or integrated FET. It replaces the body diode in low-side synchronous rectifiers but requires external gate drive for true synchronous operation; its zero Q_rr makes it ideal as a freewheeling diode when MOSFETs are used for main switching.