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Infineon Technologies IPS0551T — Power Management (PMIC / Gate Driver)

IPS0551T low-side switch, 35A, 4.5 mOhm, TO-273AA

MPNIPS0551T
Obsolete

Infineon IPS0551T low-side N-channel power switch, 35A max output, 4.5 mOhm typical Rds(on), 18V load max, through-hole TO-273AA (SUPER-220) package, -40°C to 150°C junction temperature, obsolete.

$2.9500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IPS0551T specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingThrough Hole
Voltage - load18V (Max)
Voltage - supply (Vcc (Vdd))Not Required
Output current35A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C ~ 150°C (TJ)
PackageTube
Rds on4.5mOhm
CaseTO-273AA
Fault protectionCurrent Limiting (Fixed), Over Temperature
Output configurationLow Side
Ratio - Input:Output1:1

Product details

It handles loads up to 18V and requires no Vcc supply — the gate is driven directly by the logic-level input. Built-in fault protection includes fixed current limiting and over-temperature shutdown, making it suitable for driving inductive loads like solenoids, relays, motors, and lamps in harsh environments such as automotive under-hood or industrial machinery.

At 35A continuous, a 4.5 mOhm typical Rds(on) means conduction losses of roughly 5.5 W at full load — manageable with the through-hole package bolted to a heatsink. The low on-resistance keeps the junction temperature rise under control even in the -40°C to 150°C operating range.

Package and mounting — TO-273AA (SUPER-220)

The IPS0551T comes in a through-hole TO-273AA package, also called SUPER-220. This is a large tabbed package designed for heatsink mounting — the metal tab is the drain connection and must be electrically isolated or connected to the appropriate rail.

Frequently asked questions

What is the replacement for the IPS0551T?

For a pin-compatible replacement, look for a low-side N-channel switch in a TO-273AA (SUPER-220) package rated for 35A or higher, with a similar 4.5 mOhm Rds(on) and 18V load capability. Cross-referencing against Infineon's current low-side switch portfolio is recommended.