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Texas Instruments LM22679TJE-ADJ/NOPB — Discrete Semiconductors

LM22679TJE-ADJ/NOPB SIMPLE SWITCHER Buck Regulator, 5A

MPNLM22679TJE-ADJ/NOPB
End of Life

Texas Instruments SIMPLE SWITCHER® step-down buck regulator, LM22679TJE-ADJ/NOPB, adjustable output, 5 A, 4.5-42 V input, TO-263-7 Thin package, surface mount.

$7.03Ref. price · indicative, final on quote
Texas Instruments LM22679TJE-ADJ/NOPB datasheet (PDF)
PackagingTO-263-7 Thin
RoHSROHS3 Compliant
SeriesSIMPLE SWITCHER®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM22679TJE-ADJ/NOPB specifications
ParameterValue
SeriesSIMPLE SWITCHER®
Output typeAdjustable
MountingSurface Mount
Voltage - input4.5V
Voltage - output37V
Voltage - output (Min (Fixed))1.285V
Output current5A
Frequency - switching500kHz
I/O channels1
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
CaseTO-263-7 Thin
Output configurationPositive
Synchronous rectifierNo

Product details

5 A adjustable buck — the SIMPLE SWITCHER workhorse

The LM22679TJE-ADJ/NOPB: Output voltage adjusts from 1.285 V up to 37 V via an external resistor divider — the 5 A rating holds across this range as long as the input-to-output differential stays within the buck's minimum on-time limits. Switching at 500 kHz, it balances inductor size against efficiency — the fixed-frequency PWM keeps the ripple predictable, which simplifies the output filter design for a layout engineer. The non-synchronous topology (external Schottky diode required) adds a diode forward-drop loss but keeps the BOM cost lower than a synchronous alternative at this current level.

Active lifecycle and compliance documentation

RoHS3 compliant — no exemption-based lead content; the part carries the /NOPB suffix confirming lead-free construction.

Frequently asked questions

Where can I buy LM22679TJE-ADJ/NOPB and get a price?

We source this part to order against an RFQ through independent distribution. Submit a quote request for current pricing and availability on your required quantity.

What is the closest functional second-source to LM22679TJE-ADJ/NOPB?

The TPS65261RHBT is a triple-output buck converter, not a direct pin-for-pin replacement. The LM22679TJE-ADJ/NOPB is a single 5 A output device; the TPS65261RHBT delivers three 3 A outputs with a synchronous topology and a different package (QFN). They are not drop-in interchangeable without a board redesign.