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TPS62242QDDCRQ1

TPS62242QDDCRQ1 Buck Converter, 2.25 MHz, 300 mA, AEC-Q100

MPNTPS62242QDDCRQ1
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Texas Instruments Automotive AEC-Q100 TPS62242QDDCRQ1, Step-Down Buck Converter, Fixed 1.2 V Output, 300 mA, 2.25 MHz, SOT-23-Thin TSOT-23-5, -40°C to 115°C.

$1.6300Ref. price · indicative, final on quote
Texas Instruments TPS62242QDDCRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS62242QDDCRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
MountingSurface Mount
Voltage - input6V
Voltage - output (Min (Fixed))1.2V
Output current300mA
Frequency - switching2.25MHz
I/O channels1
Operating temperature-40°C~115°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
CaseSOT-23-5 Thin, TSOT-23-5
Output configurationPositive
Synchronous rectifierYes

Product details

Automotive-rated 300 mA step-down for tight rails

It delivers 300 mA from a 2 V to 6 V input rail with a 2.25 MHz switching frequency. The fixed 1.2 V output and integrated synchronous rectifier eliminate the need for an external Schottky diode, simplifying the BOM for point-of-load supplies in automotive ECUs, sensor modules, and CAN transceiver rails.

Switching frequency and package — layout decisions

The 2.25 MHz switching frequency lets you use a small inductor (typically 2.2 µH to 4.7 µH) and small ceramic output capacitors, which keeps the total solution footprint tight for space-constrained automotive PCBs. The -40°C to 115°C operating temperature range covers under-hood and cabin environments.

Frequently asked questions

Can TPS62242QDDCRQ1 replace the standard TPS62242?

The TPS62242QDDCRQ1 is the AEC-Q100 automotive-qualified variant of the base TPS62242. Pin-compatible and electrically identical in function, but only the Q-suffix version carries the automotive-grade qualification required for under-hood or chassis-domain designs.