LM4667MM/NOPB
Active1.3-W, MONO, ANALOG INPUT CLASS-D AUDIO AMP WITH SELECTABLE GAIN
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LM4667MM/NOPB
Active1.3-W, MONO, ANALOG INPUT CLASS-D AUDIO AMP WITH SELECTABLE GAIN
Deep-Dive with AI
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | LM4667MM/NOPB | LM4667 Series |
|---|---|---|
| Board Type | - | Fully Populated |
| Features | Differential Inputs, Short-Circuit Protection, Depop, Shutdown | Differential Inputs, Short-Circuit Protection, Depop, Shutdown |
| Max Output Power x Channels @ Load [custom] | 1 | 1 |
| Max Output Power x Channels @ Load [custom] | 1.3 W | 1.3 W |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) |
| Package / Case | 10-TFSOP, 10-MSOP | 10-TFSOP, 10-MSOP, 9-WFBGA, DSBGA |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 10-VSSOP | 10-VSSOP, 9-DSBGA |
| Type | Class D | Class D |
| Utilized IC / Part | - | LM4667 |
| Voltage - Supply [Max] | 5.5 V | 5.5 V |
| Voltage - Supply [Min] | 2.7 V | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.30 | |
| 10 | $ 1.16 | |||
| 25 | $ 1.10 | |||
| 100 | $ 0.91 | |||
| 250 | $ 0.85 | |||
| 500 | $ 0.75 | |||
| Digi-Reel® | 1 | $ 1.30 | ||
| 10 | $ 1.16 | |||
| 25 | $ 1.10 | |||
| 100 | $ 0.91 | |||
| 250 | $ 0.85 | |||
| 500 | $ 0.75 | |||
| Tape & Reel (TR) | 1000 | $ 0.54 | ||
| 2000 | $ 0.50 | |||
| 3000 | $ 0.49 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.84 | |
| 100 | $ 0.64 | |||
| 250 | $ 0.47 | |||
| 1000 | $ 0.34 | |||
LM4667 Series
1.3-W, MONO, ANALOG INPUT CLASS-D AUDIO AMP WITH SELECTABLE GAIN
| Part | Voltage - Supply [Min] | Voltage - Supply [Max] | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Type | Features | Package / Case | Max Output Power x Channels @ Load [custom] | Max Output Power x Channels @ Load [custom] | Output Type | Utilized IC / Part | Board Type | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LM4667MM/NOPB | 2.7 V | 5.5 V | Surface Mount | 85 °C | -40 °C | 10-VSSOP | Class D | Depop, Differential Inputs, Short-Circuit Protection, Shutdown | 10-MSOP, 10-TFSOP | 1 | 1.3 W | 1-Channel (Mono) | |||
Texas Instruments LM4667MMBD/NOPB | 2.7 V | 5.5 V | 1 | 1.3 W | 1-Channel (Mono) | LM4667 | Fully Populated | Board(s) | |||||||
Texas Instruments LM4667ITL/NOPB | 2.7 V | 5.5 V | Surface Mount | 85 °C | -40 °C | 9-DSBGA | Class D | Depop, Differential Inputs, Short-Circuit Protection, Shutdown | 9-WFBGA, DSBGA | 1 | 1.3 W | 1-Channel (Mono) | |||
Texas Instruments LM4667ITLX/NOPB | 2.7 V | 5.5 V | Surface Mount | 85 °C | -40 °C | 9-DSBGA | Class D | Depop, Differential Inputs, Short-Circuit Protection, Shutdown | 9-WFBGA, DSBGA | 1 | 1.3 W | 1-Channel (Mono) | |||
Texas Instruments LM4667MMBD | 2.7 V | 5.5 V | 1 | 1.3 W | 1-Channel (Mono) | LM4667 | Fully Populated | Board(s) | |||||||
Texas Instruments LM4667MM | 2.7 V | 5.5 V | Surface Mount | 85 °C | -40 °C | 10-VSSOP | Class D | Depop, Differential Inputs, Short-Circuit Protection, Shutdown | 10-MSOP, 10-TFSOP | 1 | 1.3 W | 1-Channel (Mono) | |||
Texas Instruments LM4667MMX/NOPB | 2.7 V | 5.5 V | Surface Mount | 85 °C | -40 °C | 10-VSSOP | Class D | Depop, Differential Inputs, Short-Circuit Protection, Shutdown | 10-MSOP, 10-TFSOP | 1 | 1.3 W | 1-Channel (Mono) |
Description
General part information
LM4667 Series
The LM4667 is a fully integrated single-supply high efficiency switching audio amplifier. It features an innovative modulator that eliminates the LC output filter used with typical switching amplifiers. Eliminating the output filter reduces parts count, simplifies circuit design, and reduces board area. The LM4667 processes analog inputs with a delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width modulators.
The LM4667 is designed to meet the demands of mobile phones and other portable communication devices. Operating on a single 3V supply, it is capable of driving 8Ω transducer loads at a continuous average output of 450mW with less than 1%THD+N. Its flexible power supply requirements allow operation from 2.7V to 5.5V.
The LM4667 has high efficiency with an 8Ω transducer load compared to a typical Class AB amplifier. With a 3V supply, the IC's efficiency for a 100mW power level is 74%, reaching 84% at 450mW output power.
Documents
Technical documentation and resources