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Texas Instruments TPS71519DCKR — Power Management (PMIC / Gate Driver)
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Texas Instruments / Power Management (PMIC / Gate Driver)

Texas Instruments TPS71519DCKR LDO, 1.9V Fixed, 50mA

MPN TPS71519DCKR
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Texas Instruments TPS71519DCKR, linear LDO regulator, fixed 1.9V output, 50mA, SC-70-5 (SOT-353), 60dB PSRR at 100kHz, 4.2µA quiescent current, -40°C to 125°C.

In Stock: 5,396 pcs
MOQ: 1 pcs
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (14)
Package / Case 5-TSSOP, SC-70-5, SOT-353

Full Technical Specifications

14 Parameters
TPS71519DCKR specifications
Parameter / AttributeSpecification / Value
Output typeFixed
MountingSurface Mount
Voltage - input24V
Voltage dropout0.75V @ 50mA
Voltage - output (Min (Fixed))1.9V
Output current50mA
Current - quiescent4.2 µA
Operating temperature-40°C ~ 125°C
PSRR60dB (100kHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case5-TSSOP, SC-70-5, SOT-353
Protection featuresOver Current
Number of regulators1
Output configurationPositive
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Technical Details & Description

50mA LDO with 60dB PSRR at 100kHz — SC-70-5 footprint

The Texas Instruments TPS71519DCKR is a fixed 1.9V output, 50mA LDO in a 5-pin SC-70-5 (SOT-353) package. Its 60dB PSRR at 100kHz means it attenuates switching noise from a downstream DC-DC converter by a factor of 1000 at that frequency — a meaningful spec for powering a precision voltage reference or an ADC analog supply where the upstream rail carries ripple. Quiescent current is 4.2 µA typical. For a battery-powered sensor that sleeps 99% of the time, the regulator's own draw sets the floor on system idle current — the TPS71519DCKR adds less than 5 µA to the sleep budget.

Dropout headroom and temperature grade

Maximum dropout voltage is 0.75V at the full 50mA load. The part holds its output accuracy and PSRR across this range, though the dropout voltage increases at temperature per the datasheet's typical curve.

The part is suitable for new designs and carries no last-time-buy pressure.

Frequently asked questions

What is the PSRR of TPS71519DCKR at 100 kHz?

The TPS71519DCKR provides 60 dB of power supply rejection ratio at 100 kHz. This is the key spec for filtering switching noise from a DC-DC converter feeding a precision analog rail.

What package does TPS71519DCKR come in?

The TPS71519DCKR is supplied in a 5-pin SC-70-5 (also known as SOT-353) package.

TPS71519DCKR
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