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Texas Instruments LM2832XSD/NOPB — Discrete Semiconductors

Texas Instruments LM2832XSD/NOPB Buck Regulator, 2 A

MPNLM2832XSD/NOPB
End of Life

Texas Instruments LM2832XSD/NOPB step-down buck regulator, 2 A output, 1.6 MHz switching frequency, adjustable output 0.6 V to 4.5 V, 6-WSON (3x3) package.

$2.27Ref. price · indicative, final on quote
Texas Instruments LM2832XSD/NOPB datasheet (PDF)
Packaging6-WDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM2832XSD/NOPB specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input5.5V
Voltage - output4.5V
Voltage - output (Min (Fixed))0.6V
Output current2A
Frequency - switching1.6MHz
I/O channels1
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case6-WDFN Exposed Pad
Output configurationPositive
Synchronous rectifierNo

Product details

2 A step-down buck at 1.6 MHz — what it means for the rail

The LM2832XSD/NOPB: The adjustable output range spans 0.6 V (the internal reference) up to 4.5 V, set by a resistor divider from the FB pin. This covers common core and I/O rails for 3.3 V and 1.8 V logic, plus lower voltages for DSP or FPGA core supplies.

Package and thermal: 6-WSON exposed pad

The non-synchronous topology means an external Schottky catch diode is needed — the 2 A output current demands a diode rated at least 2 A forward and 10 V reverse (e.g., a 2 A, 20 V Schottky in SOD-123 or SMA). The diode's forward drop and reverse recovery directly affect efficiency, especially at high switching frequency.

The 'NOPB' suffix confirms lead-free / ROHS3 compliance per TI's standard marking.

Frequently asked questions

Where can I buy LM2832XSD/NOPB and check availability?

The LM2832XSD/NOPB is an active Texas Instruments part. No stock-holding claim is made — submit an RFQ for your BOM quantity.

What is the closest functional second-source for LM2832XSD/NOPB — TPS65261RHBT?

The TPS65261RHBT is a different device: it is a triple-output synchronous buck with 3 A per channel, 2 MHz switching, and a wider 4.5 V minimum input. It does not drop in as a pin-compatible replacement — the LM2832XSD/NOPB is a single-output non-synchronous part in a 6-pin WSON, while the TPS65261RHBT is a 32-pin QFN with multiple outputs and synchronous rectification. A board spin is required for substitution.