LM4673SD/NOPB ,Filterless, 2.65W, Mono, Class D Audio Power Amplifier 8-WSON -40 to 85Electrical CharacteristicsThe following specifications apply for A = 2V/V (R = 150kΩ), R = 15µH + 8 ..
LM4674ATLX/NOPB ,Filterless 2.5 Stereo Class D Audio Power Amplifier 16-DSBGA -40 to 85Electrical Characteristics V = 3.6VDDThe following specifications apply for A = 6dB, R = 15µH + 8Ω ..
LM4674ATLX/NOPB ,Filterless 2.5 Stereo Class D Audio Power Amplifier 16-DSBGA -40 to 85features• Mobile Phones85% efficiency at P = 500mW. Four gain options areO• PDAspin selectable thro ..
LM4674SQ/NOPB ,Filterless 2.5 Stereo Class D Audio Power Amplifier 16-WQFN -40 to 85features85% efficiency at P = 500mW. Four gain options areO• Mobile Phonespin selectable through th ..
LM4674TL , Filterless 2.5W Stereo Class D Audio Power Amplifier
LM4674TL , Filterless 2.5W Stereo Class D Audio Power Amplifier
LP2966IMM-3325 ,Dual 150mA Ultra Low-Dropout RegulatorapplicationsShutdown Mode: Less than 1μA quiescent current whenn Hand held equipment and multimeter ..
LP2966IMM-3333 ,Dual 150mA Ultra Low-Dropout Regulatorapplicationsrequest with minimum orders. In all, 256 voltage combina-n Over temperature/over curren ..
LP2966IMM-3336 ,Dual 150mA Ultra Low-Dropout RegulatorLP2966 Dual 150mA Ultra Low-Dropout RegulatorMay 2001LP2966Dual 150mA Ultra Low-Dropout Regulator
LP2966IMM-3636 ,Dual 150mA Ultra Low-Dropout Regulatorapplicationssponding output drops 10% below nominal.Precision Output Voltage: Multiple output volta ..
LP2966IMM-5050 ,Dual 150mA Ultra Low-Dropout RegulatorBlock Diagram10085031Connection Diagram10085032Top ViewMini SO-8 Package8-Lead Small Outline Integr ..
LP2966IMMX-2525 ,Dual 150mA Ultra Low-Dropout RegulatorLP2966 Dual 150mA Ultra Low-Dropout RegulatorMay 2001LP2966Dual 150mA Ultra Low-Dropout Regulator
LM4673SD/NOPB
Filterless, 2.65W, Mono, Class D Audio Power Amplifier
LM4673, LM4673SDBD, LM4673TMBD
www.ti.com SNAS317D –DECEMBER 2005–REVISED MAY 2013
LM4673 Filterless, 2.65W, Mono, ClassD Audio Power
Amplifier
Checkfor Samples: LM4673, LM4673SDBD, LM4673TMBD
1FEATURES DESCRIPTIONThe LM4673 isa single supply, high efficiency,
Mono ClassD Operation 2.65W, mono, ClassD audio amplifier.A low noise,
• No Output Filter Required for Inductive Loads filterless PWM architecture eliminates the output filter,
Externally Configurable Gain reducing external component count, board area
consumption, system cost, and simplifying design.
• Very Fast Turn On Time: 17μs (typ) Minimum External Components The LM4673is designedto meet the demandsof
mobile phones and other portable communication
• "Click and Pop" Suppression Circuitry devices. Operating ona single 5V supply,it is
• Micro-Power Shutdown Mode capableof drivinga 4Ω speaker loadata continuous
Availablein Space-Saving 0.4mm Pitch average outputof 2.1W with less than 1% THD+N.Its
DSBGA and WSON Packages flexible power supply requirements allow operation
from 2.4Vto 5.5V.
APPLICATIONS The LM4673 has high efficiency with speaker loads
comparedtoa typical Class AB amplifier. Witha 3.6V
• Mobile Phonessupply drivingan 8Ω speaker, the IC's efficiency fora
• PDAs 100mW power levelis 80%, reaching 88%at 400mW
• Portable Electronic Devices output power.
The LM4673 featuresa low-power consumption
KEY SPECIFICATIONS shutdown mode. Shutdown may be enabled by
• Efficiencyat 3.6V, 400mW into 8Ω Speaker driving the Shutdown pintoa logic low (GND).
88% (typ) The gain of the LM4673is externally configurable
• Efficiencyat 3.6V, 100mW into 8Ω Speaker which allows independent gain control from multiple
80% (typ) sourcesby summing the signals. Output short circuit
and thermal overload protection prevent the device
• Efficiencyat 5V, 1W into 8Ω Speaker 86% (typ)from damage during fault conditions.
• Quiescent Current, 3.6V Supply 2.1mA (typ) Total Shutdown Power Supply Current
0.01µA (typ) 2.4Vto 5.5V
