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IPG20N04S4L-08

40V N-ch OptiMOS, 2.0mOhm, 20A, 19nC Qg, SuperSO8, sync rect

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Manufacturer Part：

IPG20N04S4L-08

Package：

SuperSO8 / PG-DSO-8 (5.0 x 6.0 x 1.0mm, 0.8mm pitch, exposed pad)

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Description

Product Overview

The IPG20N04S4L-08 from Infineon Technologies is a 40V N-channel OptiMOS power MOSFET in a SuperSO8 (5x6mm) package. With 2.0mΩ typical RDS(on) and 20A continuous drain current, it is optimized for high-efficiency synchronous rectification and DC-DC converter applications in server, telecom, and computing power supplies.

Key Specifications

VDS 40V
ID (TC=25°C) 20 A
RDS(on) Typ @ VGS=10V 2.0 mΩ
RDS(on) Max @ VGS=10V 2.4 mΩ
VGS(th) Range 1.0V to 2.2V (typ 1.6V)
Qg Total Gate Charge 19 nC typ
Qgd (Miller Charge) 4.5 nC typ
Power Dissipation 50W (TC=25°C)
RθJC 2.5°C/W
Body Diode VSD 0.8V typ @ 20A
Operating Temperature -55 to +175°C
Package SuperSO8 (PG-DSO-8, 5x6mm)

Features

  • Ultra-low RDS(on): 2.0mΩ typical
  • OptiMOS technology for highest efficiency
  • Very low gate charge: 19nC typ
  • Low Qgd/Qgs ratio for reduced switching losses
  • Logic-level gate drive compatible
  • SuperSO8 package with low parasitic inductance
  • Source-down configuration (S4L variant)
  • Qualified for industrial applications

Applications

  • Synchronous rectification in server/telecom PSU
  • DC-DC converter low-side switch (POL)
  • Battery management and protection
  • Motor drive half-bridge
  • OR-ing and load switch

The IPG20N04S4L-08 from Infineon is a 40V N-channel OptiMOS power MOSFET in SuperSO8 with 2.0mΩ typical RDS(on) and 20A drain current. 19nC total gate charge with only 4.5nC Miller charge for low switching losses. Source-down configuration (S4L) provides excellent thermal performance through the PCB. Logic-level gate drive with 1.6V typical threshold. Designed for high-efficiency synchronous rectification and POL DC-DC converters in server and telecom applications.

Uses Infineon’s OptiMOS trench technology with vertical MOSFET structure. The S4L (Source-4-Lead) variant places the source terminal on the package exposed pad, enabling direct PCB thermal coupling for the source node — critical in synchronous rectification where the source is the switching node. The 2.0mΩ RDS(on) is achieved through optimized cell density and trench geometry. The low Qgd/Qgs ratio (4.5/5.5) of 0.82 provides a wide margin against parasitic turn-on (Miller turn-on), allowing safe operation without a negative gate bias. The 19nC gate charge minimizes driver power dissipation at high switching frequencies.

Pin Name Type Function
1 Source Source Source terminal (primary)
2 Gate Input Gate control terminal
3 Source Source Source terminal (sensing)
4-8 Drain Drain Drain terminals (connected to exposed pad)
  • 12V output synchronous rectifier in server PSU at 300kHz+
  • POL buck converter low-side switch for 3.3V/1.8V rails
  • Battery protection MOSFET in 4S-6S Li-Ion packs
  • Motor drive half-bridge in 24V BLDC applications
  • Redundant power supply OR-ing switch
Manufacturer Part Number Package Notes
Infineon BSC014N04LS SuperSO8 1.4mΩ, same voltage, lower RDS(on)
onsemi NTMFS4C05N Power33 0.93mΩ, competitive alternative
Infineon IPD50N04S4L-07 SuperSO8 50V, 2.7mΩ, higher voltage option
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

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Contact Information

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Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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