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Texas Instruments TPS2220BDBR — Power Management (PMIC / Gate Driver)

TPS2220BDBR PCMCIA Power Switch, 95 mOhm, Obsolete

MPNTPS2220BDBR
Obsolete

Texas Instruments TPS2220BDBR, PCMCIA power-distribution switch, dual high-side output, 1 A max per channel, 95 mOhm typical Rds(on), 3.3/5/12 V load, 24-SSOP, industrial temp -40°C to 85°C.

$1.2200Ref. price · indicative, final on quote
Texas Instruments TPS2220BDBR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS2220BDBR specifications
ParameterValue
TypePCMCIA Switch
MountingSurface Mount
Voltage - load3.3V, 5V, 12V
Voltage - supply (Vcc (Vdd))Not Required
Output current1A
I/O channels2
InterfaceSerial
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR)
FeaturesStatus Flag
Rds on95mOhm
Case24-SSOP (0.209\", 5.30mm Width)
Fault protectionCurrent Limiting (Fixed), Over Temperature
Output configurationHigh Side
Ratio - Input:Output4:2

Product details

PCMCIA slot power controller — what it does

The Texas Instruments TPS2220BDBR is a dual-output, high-side power-distribution switch designed specifically for PCMCIA card slots. It integrates a 4:2 input-to-output multiplexer that selects among 3.3 V, 5 V, and 12 V load rails, routing the chosen voltage to two independent outputs, each rated for 1 A continuous. A serial interface controls the output configuration, and a status flag reports fault conditions back to the host controller — essential for hot-swap card insertion where the system must know when a slot is powered or faulted.

Protection features and thermal limits

Built-in fault protection includes fixed current limiting and over-temperature shutdown. The current limit is non-adjustable — set internally to protect the PCMCIA connector and card from sustained overcurrent events without external sense resistors. The 95 mOhm typical Rds(on) is specified for the 24-SSOP package.

New production designs should select a current-generation PCMCIA or general-purpose power switch from the TI portfolio.

Frequently asked questions

Does TPS2220BDBR have overcurrent protection?

Yes, it includes fixed current limiting and over-temperature shutdown as built-in fault protection features. The current limit is non-adjustable and set internally.

What is TPS2220BDBR used for?

It is a PCMCIA power-distribution switch used to control and protect power to PCMCIA card slots in notebook computers, industrial handhelds, and telecom equipment. It handles 3.3 V, 5 V, and 12 V rails with a 4:2 input-to-output mux and reports fault status via a serial interface.