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Infineon Technologies BTS500551TMB — Power Management (PMIC / Gate Driver)
Infineon Technologies

Infineon BTS500551TMB High-Side Power Switch, 4.4 mOhm, 55A

MPNBTS500551TMB
Active

Infineon PROFET BTS500551TMB high-side power switch, 1 output, N-channel, 4.4 mOhm typical Rds(on), 55A max output, 5V~34V load, TO-220-7 formed leads, -40°C~150°C junction.

$7.3400Ref. price · indicative, final on quote
BTS500551TMB datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BTS500551TMB Technical Specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
Switch typeGeneral Purpose
Mounting typeThrough Hole
Voltage - load5V ~ 34V
Voltage - supply (Vcc (Vdd))Not Required
Current - output55A
Number of outputs1
InterfaceOn/Off
Operating temperature-40°C~150°C(TJ)
PackageBulk
FeaturesAuto Restart
Rds on4.4mOhm
CaseTO-220-7 Formed Leads
Fault protectionCurrent Limiting (Fixed), Open Load Detect, Over Load, Over Temperature, Over Voltage, Short Circuit, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

High-side switch with 4.4 mOhm Rds(on) — conduction loss floor

The Infineon BTS500551TMB is a single-channel high-side power switch in the PROFET family. Its typical on-resistance of 4.4 mOhm sets the conduction loss floor. The 55 A maximum output current rating covers heavy loads like motors, solenoids, and pre-charge circuits.

The load voltage range spans 5 V to 34 V. The switch does not require a Vcc supply — it self-powers from the load pin, simplifying the BOM by eliminating a separate bias rail. Fault protection includes fixed current limiting, open load detection, over-temperature shutdown, over-voltage clamp, short-circuit protection, and under-voltage lockout.

Package and mounting — TO-220-7 formed leads

The BTS500551TMB comes in a TO-220-7 package with formed leads (P-TO220-7-11), a through-hole footprint that suits power-dissipation designs requiring a heatsink. The 7-lead layout is specific to this PROFET family — verify the hole pattern against the board layout before committing.

Lifecycle and sourcing posture

Sourced through independent distribution, it is quoted to order against the BOM quantity. No official successor or pin-compatible alternate is listed in the cross-reference; for dual-sourcing options, contact the sourcing desk with the target quantity and application voltage.

Frequently asked questions

What is the Rds(on) of BTS500551TMB?

The typical on-resistance is 4.4 mOhm. This value is specified at 25°C junction; actual Rds(on) increases with temperature per the normalised curve in the datasheet, so derate the continuous current for high-temperature operation.

Does BTS500551TMB have overcurrent protection?

Yes, it includes fixed current limiting, short-circuit protection, and over-temperature shutdown. The protection suite also covers open load detection, over-voltage clamping, and under-voltage lockout.