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BTS3028SDL

Infineon BTS3028SDL Low-Side Switch, 28 mOhm, 5 A, TO-252

MPNBTS3028SDL
Active

Infineon BTS3028SDL, Low-Side Switch, 1 Output, N-Channel, 28 mOhm Typ Rds(on), 5 A Max, Non-Inverting, On/Off Interface, TO-252-3, -40°C to 150°C.

$1.9600Ref. price · indicative, final on quote
Infineon Technologies BTS3028SDL datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BTS3028SDL specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load2V ~ 10V
Voltage - supply (Vcc (Vdd))Not Required
Output current5A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~150°C(TJ)
PackageBulk
Rds on28mOhm
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Fault protectionCurrent Limiting (Fixed), Over Temperature, Over Voltage
Output configurationLow Side
Ratio - Input:Output1:1

Product details

28 mOhm low-side switch for 5 A loads

The Infineon BTS3028SDL is a single-channel low-side N-channel power switch in a TO-252-3 (DPak) surface-mount package.

Integrated protection — no external sense needed

The BTS3028SDL includes current limiting (fixed threshold), over-temperature shutdown, and over-voltage clamping. These protections eliminate the need for external current-sense resistors or comparator circuits, reducing BOM count and board area. The non-inverting input and 1:1 input-to-output ratio make it a drop-in replacement for basic low-side driver stages.

Frequently asked questions

What is the typical on-resistance of BTS3028SDL?

The typical on-resistance is 28 mOhm. This value is specified at 25 °C junction temperature; actual Rds(on) increases with temperature per the normalised curve in the datasheet.

What is the maximum load current for BTS3028SDL?

The maximum continuous output current is 5 A. The part is a low-side switch, so the load connects between the supply and the drain; the source is grounded.

How does BTS3028SDL handle over-temperature?

The device includes over-temperature shutdown protection. If the junction temperature exceeds the threshold, the output latches off until the device cools, preventing thermal runaway.