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| Part Number | LM4991LD/NOPB | LM4991LDX/NOPB | LM4990LD/NOPB |
|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Active | Active | Active |
| Type | Class AB | Class AB | - |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) | - |
| Max Output Power x Channels @ Load | 3W x 1 @ 3Ohm | 3W x 1 @ 3Ohm | - |
| Voltage - Supply | 2.2V ~ 5.5V | 2.2V ~ 5.5V | - |
| Features | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | - |
| Mounting Type | Surface Mount | Surface Mount | - |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | - |
| Supplier Device Package | 8-WSON (4x4) | 8-WSON (4x4) | - |
| Package / Case | 8-WDFN Exposed Pad | 8-WDFN Exposed Pad | - |
