LD3985M28R

STMicroelectronics

STMicroelectronics LD3985M28R, fixed-output 2.8V LDO, 150mA, 0.1V dropout at full load, 60dB~50dB PSRR (1kHz~10kHz), SOT-23-5, -40°C to 125°C, active.

STMicroelectronics LD3985M28R
Download datasheet (PDF)
[IN STOCK] In Stock: 48 pcs
$0.84/ pc

Volume pricing

Buy Now

MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T

Technical specifications

LD3985M28R specifications
Parameter / AttributeSpecification / Value
Output typeFixed
MountingSurface Mount
Voltage - input6V
Voltage dropout0.1V @ 150mA
Voltage - output (Min (Fixed))2.8V
Output current150mA
Current - supply250 µA
Current - quiescent150 µA
Operating temperature-40°C ~ 125°C
PSRR60dB ~ 50dB (1kHz ~ 10kHz)
PackageTape & Reel (TR); Cut Tape (CT)
CaseSC-74A, SOT-753
Control featuresEnable
Protection featuresOver Current, Over Temperature
Number of regulators1
Output configurationPositive

Technical details

Fixed 2.8 V rail, 150 mA — what it delivers

PSRR measures 60 dB at 1 kHz, dropping to 50 dB at 10 kHz — enough to clean up switching-regulator ripple in the audio band and low-frequency noise from a DC-DC converter. The operating temperature range of -40°C to 125°C qualifies it for automotive under-hood, industrial motor drives, and outdoor telecom equipment where the ambient can swing hard.

Sourcing and lifecycle

The LD3985M28R carries an Active lifecycle status with ROHS3 compliance. No last-time-buy or obsolescence notice is on record. Sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

LD3985M28R
[ALLOC] verified
Quote