component
LN4990MM-G
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NATLINEAR Audio Amplifiers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LN4990MM-G
NATLINEAR · Audio Amplifiers · MSOP-8
LN4990MM-G from NATLINEAR, in a MSOP-8. 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 that puts the amplifier in a low-power state with shutdown current of 0.1µA typ. (2µA max), with high or low shutdown level user-selectable. |
| 2 | BYPASS | passive | Bypass pin for the internal common-mode reference, used by the click-and-pop suppression circuitry. |
| 3 | +IN | input | Non-inverting input of the differential audio input. |
| 4 | -IN | input | Inverting input of the differential audio input, where an external resistor adjusts the gain. |
| 5 | VO1 | output | Bridge-tied-load amplifier output 1, driving the speaker with no output coupling capacitor needed. |
| 6 | VDD | power_in | Positive supply pin, operating range 2.2V to 5.5V (absolute maximum 6.0V). |
| 7 | GND | power_in | Ground pin. |
| 8 | VO2 | output | Bridge-tied-load amplifier output 2, driving the speaker with no output coupling capacitor needed. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NATLINEAR |
| Package | MSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
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 current, no load | IDD | 3 | 7 | mA | VDD=5V; VIN = 0V, Io = 0A, No Load | 4 | |
| Quiescent current, 8Ω load | IDD | 4 | 10 | mA | VDD=5V; VIN = 0V, Io = 0A, 8Ω Load | 4 | |
| Shutdown current | ISD | 0.1 | 2 | μA | VDD=5V; V 0V SHUTDOWN | 4 | |
| Output offset voltage | VOS | 7 | 50 | mV | VDD=5V | 4 | |
| Output resistance to GND | ROUT-GND | 7 | 8.5 | 9.7 | kΩ | VDD=5V | 4 |
| Output power, 8Ω | PO | 0.9 | 1.25 | W | VDD=5V; THD = 1% (max); f = 1 kHz | 4 | |
| Startup time | TWU | 170 | 220 | ms | VDD=5V | 4 | |
| Thermal shutdown temperature | TSD | 150 | 170 | 190 | ℃ | VDD=5V | 4 |
| Power supply rejection ratio, f=217Hz | PSRR | 55 | 60 | dB | VDD=5V; Vripple = 200mV sine p-p f=217Hz | 4 | |
| Quiescent current, no load | IDD | 2 | 7 | mA | VDD=3V; VIN = 0V, Io = 0A, No Load | 5 | |
| Quiescent current, 8Ω load | IDD | 3 | 9 | mA | VDD=3V; VIN = 0V, Io = 0A, 8Ω Load | 5 | |
| Shutdown current | ISD | 0.1 | 2 | μA | VDD=3V; V 0V SHUTDOWN | 5 | |
| Output offset voltage | VOS | 7 | 50 | mV | VDD=3V | 5 | |
| Output resistance to GND | ROUT-GND | 7 | 8.5 | 9.7 | kΩ | VDD=3V | 5 |
| Startup time | TWU | 100 | 150 | ms | VDD=3V | 5 | |
| Thermal shutdown temperature | TSD | 150 | 170 | 190 | ℃ | VDD=3V | 5 |
| Power supply rejection ratio, f=217Hz | PSRR | 45 | 62 | dB | VDD=3V; Vripple = 200mV sine p-p, f=217Hz | 5 | |
| Output power, 8Ω | PO | 0.3 | W | VDD=2.6V; THD = 1% (max); f = 1 kHz; 8Ω Load | 5 | ||
| Output power, 4Ω | PO | 0.4 | W | VDD=2.6V; THD = 1% (max); f = 1 kHz; 4Ω Load | 5 | ||
| Operating ambient temperature | TA | -40 | 85 | ℃ | TMIN ≤ TA ≤ TMAX | 1 | |
| Operating supply voltage | VDD | 2.2 | 5.5 | V | 1 | ||
| Supply voltage (absolute maximum) | VDD | -0.3 | 6 | V | 3 | ||
| Input voltage (absolute maximum) | VIN | -0.3 | V | Upper limit printed as VDD+0.3 | 3 | ||
| Operating temperature (absolute maximum) | Topr | -40 | 85 | ℃ | 3 | ||
| Storage temperature | Tstg | -65 | 150 | ℃ | 3 | ||
| ESD parameter | 4000 | V | 3 |
CAD (KiCad official)
- Symbol:
LN4990MM-G - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
ln4990mm-g-etched.step/ln4990mm-g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ln4990mm-g.step/ln4990mm-g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NATLINEAR datasheet (9 pp, sha256
59790730bc814438, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).
# LN4990MM-G
**NATLINEAR** · Audio Amplifiers · MSOP-8
LN4990MM-G from NATLINEAR, in a MSOP-8. 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 that puts the amplifier in a low-power state with shutdown current of 0.1µA typ. (2µA max), with high or low shutdown level user-selectable. |
| 2 | BYPASS | passive | Bypass pin for the internal common-mode reference, used by the click-and-pop suppression circuitry. |
| 3 | +IN | input | Non-inverting input of the differential audio input. |
| 4 | -IN | input | Inverting input of the differential audio input, where an external resistor adjusts the gain. |
| 5 | VO1 | output | Bridge-tied-load amplifier output 1, driving the speaker with no output coupling capacitor needed. |
| 6 | VDD | power_in | Positive supply pin, operating range 2.2V to 5.5V (absolute maximum 6.0V). |
| 7 | GND | power_in | Ground pin. |
| 8 | VO2 | output | Bridge-tied-load amplifier output 2, driving the speaker with no output coupling capacitor needed. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NATLINEAR |
| Package | MSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
## 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 current, no load | IDD | | 3 | 7 | mA | VDD=5V; VIN = 0V, Io = 0A, No Load | 4 |
| Quiescent current, 8Ω load | IDD | | 4 | 10 | mA | VDD=5V; VIN = 0V, Io = 0A, 8Ω Load | 4 |
| Shutdown current | ISD | | 0.1 | 2 | μA | VDD=5V; V 0V SHUTDOWN | 4 |
| Output offset voltage | VOS | | 7 | 50 | mV | VDD=5V | 4 |
| Output resistance to GND | ROUT-GND | 7 | 8.5 | 9.7 | kΩ | VDD=5V | 4 |
| Output power, 8Ω | PO | 0.9 | 1.25 | | W | VDD=5V; THD = 1% (max); f = 1 kHz | 4 |
| Startup time | TWU | | 170 | 220 | ms | VDD=5V | 4 |
| Thermal shutdown temperature | TSD | 150 | 170 | 190 | ℃ | VDD=5V | 4 |
| Power supply rejection ratio, f=217Hz | PSRR | 55 | 60 | | dB | VDD=5V; Vripple = 200mV sine p-p f=217Hz | 4 |
| Quiescent current, no load | IDD | | 2 | 7 | mA | VDD=3V; VIN = 0V, Io = 0A, No Load | 5 |
| Quiescent current, 8Ω load | IDD | | 3 | 9 | mA | VDD=3V; VIN = 0V, Io = 0A, 8Ω Load | 5 |
| Shutdown current | ISD | | 0.1 | 2 | μA | VDD=3V; V 0V SHUTDOWN | 5 |
| Output offset voltage | VOS | | 7 | 50 | mV | VDD=3V | 5 |
| Output resistance to GND | ROUT-GND | 7 | 8.5 | 9.7 | kΩ | VDD=3V | 5 |
| Startup time | TWU | | 100 | 150 | ms | VDD=3V | 5 |
| Thermal shutdown temperature | TSD | 150 | 170 | 190 | ℃ | VDD=3V | 5 |
| Power supply rejection ratio, f=217Hz | PSRR | 45 | 62 | | dB | VDD=3V; Vripple = 200mV sine p-p, f=217Hz | 5 |
| Output power, 8Ω | PO | 0.3 | | | W | VDD=2.6V; THD = 1% (max); f = 1 kHz; 8Ω Load | 5 |
| Output power, 4Ω | PO | 0.4 | | | W | VDD=2.6V; THD = 1% (max); f = 1 kHz; 4Ω Load | 5 |
| Operating ambient temperature | TA | -40 | | 85 | ℃ | TMIN ≤ TA ≤ TMAX | 1 |
| Operating supply voltage | VDD | 2.2 | | 5.5 | V | | 1 |
| Supply voltage (absolute maximum) | VDD | -0.3 | | 6 | V | | 3 |
| Input voltage (absolute maximum) | VIN | -0.3 | | | V | Upper limit printed as VDD+0.3 | 3 |
| Operating temperature (absolute maximum) | Topr | -40 | | 85 | ℃ | | 3 |
| Storage temperature | Tstg | -65 | | 150 | ℃ | | 3 |
| ESD parameter | | | | 4000 | V | | 3 |
## CAD (KiCad official)
- Symbol: `LN4990MM-G`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ln4990mm-g-etched.step` / `ln4990mm-g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ln4990mm-g.step` / `ln4990mm-g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [NATLINEAR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590230754652422144) (9 pp, sha256 `59790730bc814438`, retrieved 2026-10-18, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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](docs/ln4990mm-g-datasheet.pdf)