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Texas Instruments LM385BLP-2-5 — Analog & Data Acquisition

LM385BLP-2-5 Shunt Voltage Reference, 2.5V ±1.5%, TO-92-3

MPNLM385BLP-2-5
Active

Texas Instruments LM385 series, Shunt Voltage Reference, Fixed 2.5V output, ±1.5% tolerance, 20 mA output, 20 µA cathode current, TO-226-3 / TO-92-3 (TO-226AA) through-hole package, 0°C to 70°C operating temperature.

$1.3700Ref. price · indicative, final on quote
PackagingTO-226-3, TO-92-3 (TO-226AA)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM385BLP-2-5 specifications
ParameterValue
Output typeFixed
MountingThrough Hole
Reference typeShunt
Voltage - output (Min (Fixed))2.5V
Output current20 mA
Current - cathode20 µA
Operating temperature0°C~70°C(TA)
PackageBulk
Tolerance±1.5%
CaseTO-226-3, TO-92-3 (TO-226AA)
Noise - 10Hz to 10kHz120µVrms
Temperature coefficient20ppm/°CTypical

Product details

It delivers a stable 2.5V output with a ±1.5% tolerance and a typical temperature coefficient of 20 ppm/°C, making it a straightforward choice for biasing ADCs, setting comparator thresholds, or providing a precision rail in low-power analog circuits. The shunt topology means it behaves like a two-terminal Zener — you bias it with a resistor from the supply, and it sinks enough cathode current (minimum 20 µA) to regulate. Output current is rated at 20 mA, so it can drive a small load or feed the reference input of a converter directly.

Package and mounting — through-hole, rework-friendly

Housed in a TO-92-3 (TO-226AA) through-hole package, this reference is a direct fit for legacy board layouts and prototype builds. The three leads are on 0.1-inch pitch, easy to hand-solder or socket. No special thermal management needed at the 20 mA output level — the junction stays cool in still air at 25°C ambient.

Frequently asked questions

What is the exact output voltage and tolerance of LM385BLP-2-5?

Designers need validation that the reference meets circuit requirements.

Where can I buy LM385BLP-2-5 in stock?

Sourcing buyers need immediate availability to fill BOM.

Is LM385BLP-2-5 obsolete or active?

Lifecycle status determines design sustainability and replacement needs.

What is the pinout and equivalent for LM385BLP-2-5?

Engineers need pin compatibility and drop-in replacements.

How much does LM385BLP-2-5 cost?

Cost is critical for budget planning and sourcing decisions.

What is the replacement for LM385BLP-2-5?

Maintenance techs require direct substitutes for failed units.