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LM4901MMX

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Texas Instruments Audio Power OpAmps, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM4901MMX

Texas Instruments · Audio Power OpAmps · VSSOP-10-0.5mm

LM4901MMX from Texas Instruments, in a VSSOP-10-0.5mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Shutdown input Shutdown control input; the device enters shutdown when this pin is in the same logic state as SD Mode, and the pin should be tied to a definite voltage.
2 Bypass passive Half-supply (VDD/2) bypass pin that takes an external capacitor CB (1.0 µF recommended) for filtering and turn-on pop control.
3 SD Mode input Shutdown mode select, tied to VDD for shutdown-high or to GND for shutdown-low operation.
4 +IN input Non-inverting input of the first amplifier.
5 -IN input Inverting input of the first amplifier; the gain is set with Ri and Rf.
6 Vo1 output Bridged-tied-load output 1 from the first amplifier, which drives one side of the speaker.
7 GND power_in Ground pin.
8 VDD power_in Positive supply pin with a 2.0V to 5.5V operating range, to be bypassed with a capacitor placed close to the device.
9 GND power_in Ground pin.
10 Vo2 output Bridged-tied-load output 2 from the second amplifier, which is the inverted copy of Vo1 and drives the other side of the speaker.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-10-0.5mm
Category Operational Amplifier/Comparator
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Quiescent Power Supply Current, No Load IDD 3 7 mA VDD=5V, VIN = 0V, Io = 0A, No Load 3
Quiescent Power Supply Current, 8Ω Load IDD 4 10 mA VDD=5V, VIN = 0V, Io = 0A, 8Ω Load 3
Shutdown Current ISD 0.1 2 µA VDD=5V, VSD = VSD Mode 3
Shutdown Voltage Input High VSDIH 1.5 V VDD=5V, VSD MODE = VDD 3
Shutdown Voltage Input Low VSDIL 1.3 V VDD=5V, VSD MODE = VDD 3
Shutdown Voltage Input Low VSDIL 1.3 V VDD=5V, VSD MODE = GND 4
Output Offset Voltage VOS 7 50 mV VDD=5V 4
Resistor Output to GND ROUT 7 8.5 9.7 kΩ VDD=5V 4
Output Power (8Ω) Po 0.9 1.07 W VDD=5V, THD = 1% (max); f = 1 kHz 4
Output Power (4Ω) Po 1.6 W VDD=5V, THD = 1% (max); f = 1 kHz 4
Wake-up time TWU 100 ms VDD=5V 4
Total Harmonic Distortion+Noise THD+N 0.2 % VDD=5V, Po = 0.5 Wrms; f = 1kHz 4
Power Supply Rejection Ratio PSRR 55 60 dB VDD=5V, Vripple = 200mV sine p-p, f = 217Hz, input terminated with 10Ω 4
Power Supply Rejection Ratio PSRR 55 64 dB VDD=5V, Vripple = 200mV sine p-p, f = 1kHz, input terminated with 10Ω 4
Quiescent Power Supply Current, No Load IDD 2 7 mA VDD=3V, VIN = 0V, Io = 0A, No Load 4
Quiescent Power Supply Current, 8Ω Load IDD 3 9 mA VDD=3V, VIN = 0V, Io = 0A, 8Ω Load 4
Shutdown Current ISD 0.1 2 µA VDD=3V, VSD = VSD Mode 4
Shutdown Voltage Input High VSDIH 1.1 V VDD=3V, VSD MODE = VDD 4
Shutdown Voltage Input Low VSDIL 0.9 V VDD=3V, VSD MODE = VDD 4
Shutdown Voltage Input High VSDIH 1.3 V VDD=3V, VSD MODE = GND 4
Shutdown Voltage Input Low VSDIL 1 V VDD=3V, VSD MODE = GND 4
Wake-up time TWU 75 ms VDD=3V 4
Power Supply Rejection Ratio PSRR 55 62 dB VDD=3V, Vripple = 200mV sine p-p, f = 217Hz, input terminated with 10Ω 4
Power Supply Rejection Ratio PSRR 55 68 dB VDD=3V, Vripple = 200mV sine p-p, f = 1kHz, input terminated with 10Ω 4
Quiescent Power Supply Current, No Load IDD 2 mA VDD=2.6V, VIN = 0V, Io = 0A, No Load 5
Quiescent Power Supply Current, 8Ω Load IDD 3 mA VDD=2.6V, VIN = 0V, Io = 0A, 8Ω Load 5
Shutdown Current ISD 0.1 µA VDD=2.6V, VSD = VSD Mode 5
Shutdown Voltage Input High VSDIH 1 V VDD=2.6V, VSD MODE = VDD 5
Shutdown Voltage Input Low VSDIL 0.9 V VDD=2.6V, VSD MODE = VDD 5
Shutdown Voltage Input High VSDIH 1.2 V VDD=2.6V, VSD MODE = GND 5
Shutdown Voltage Input Low VSDIL 1 V VDD=2.6V, VSD MODE = GND 5
Output Offset Voltage VOS 5 50 mV VDD=2.6V 5
Resistor Output to GND ROUT 7 8.5 9.7 kΩ VDD=2.6V 5
Wake-up time TWU 70 ms VDD=2.6V 5
Power Supply Rejection Ratio PSRR 51 dB VDD=2.6V, Vripple = 200mV sine p-p, f = 217Hz, input terminated with 10Ω 5
Output Power (8Ω) Po 390 mW VDD=3V, THD = 1% (max); f = 1 kHz 4
Output Power (4Ω) Po 525 mW VDD=3V, THD = 1% (max); f = 1 kHz 4
Output Power (8Ω) Po 275 mW VDD=2.6V, THD = 1% (max); f = 1 kHz 5
Output Power (4Ω) Po 340 mW VDD=2.6V, THD = 1% (max); f = 1 kHz 5
THD+N THD+N 0.1 % VDD=3V, Po = 0.25 Wrms; f = 1kHz 4
THD+N THD+N 0.1 % VDD=2.6V, Po = 0.15 Wrms; f = 1kHz 5
Supply Voltage VDD 6 V 3
Storage Temperature -65 150 °C 3
ESD Susceptibility (Human body model) 2000 V 100 pF discharged through a 1.5 kΩ resistor 3
ESD Susceptibility (Machine model) 200 V 220 pF-240 pF discharged through all pins 3
Junction Temperature TJMAX 150 °C 3
Operating Temperature Range TA -40 85 °C TMIN ≤ TA ≤ TMAX 3
Operating Supply Voltage VDD 2 5.5 V 3
Thermal Resistance Junction-Case (VSSOP) θJC 56 °C/W VSSOP 3
Thermal Resistance Junction-Ambient (VSSOP) θJA 190 °C/W VSSOP 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper (7) Machine Model, 220 pF-240 pF discharged through all pins. (8) The Exposed-DAP of the NGZ0010B package should be electrically connected to GND or an electrically isolated copper area. The 3

CAD (KiCad official)

  • Symbol: LM4901MMX
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
  • 3D model files: lm4901mmx-etched.step / lm4901mmx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4901mmx.step / lm4901mmx.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 72d94ec66e73eff4, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF