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Texas Instruments LM1875T/LB05 — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

LM1875T/LB05 Class AB Audio Amp IC, 25W Mono TO-220-5

MPNLM1875T/LB05
End of Life

Texas Instruments LM1875T/LB05, Class AB audio amplifier IC, 1-Channel (Mono), 25W x 1 @ 8Ohm, 16V ~ 60V or ±8V ~ 30V supply, Through Hole, TO-220-5 Formed Leads, 0°C ~ 70°C.

$5.29Ref. price · indicative, final on quote
LM1875T/LB05 datasheet
PackagingTO-220-5 Formed Leads
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LM1875T/LB05 Technical Specifications
ParameterValue
TypeClass AB
Output type1-Channel (Mono)
Mounting typeThrough Hole
Voltage16V ~ 60V, ±8V ~ 30V
Max output power x channels @ load25W x 1 @ 8Ohm
Operating temperature0°C ~ 70°C (TA)
PackageTube
FeaturesShort-Circuit and Thermal Protection
CaseTO-220-5 Formed Leads

Product details

25W mono Class AB amplifier in a TO-220-5

The LM1875T/LB05 is a Class AB audio power amplifier IC from Texas Instruments, delivering 25W continuous into an 8Ω load from a single-ended or split supply. It is a mono (1-channel) device in a through-hole TO-220-5 package with formed leads, rated for the commercial temperature range of 0°C to 70°C. Typical applications include active speakers, powered subwoofers, home-theater amplifiers, and general-purpose audio line drivers where a single-chip solution with modest heatsinking is preferred over discrete designs.

Supply range and output — what they mean for the BOM

The supply range of 16V to 60V (or ±8V to ±30V) covers most common audio rails. The 25W output at 8Ω is the headline figure.

Frequently asked questions

Is LM1875T/LB05 a direct replacement for LM1875?

The LM1875T/LB05 is a lead-formed variant of the standard LM1875T. The die and electrical specifications are identical; the LB05 suffix indicates a specific formed-lead configuration. Verify the lead form matches your PCB hole pattern before substituting.

What is the pinout of LM1875T/LB05?

The TO-220-5 package follows the standard LM1875 pinout: pin 1 (non-inverting input), pin 2 (inverting input), pin 3 (V- / ground), pin 4 (output), pin 5 (V+). The formed leads maintain the same electrical assignment as the straight-lead version.