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
LM4674TLX/NOPB ,Filterless 2.5 Stereo Class D Audio Power Amplifier 16-DSBGA -40 to 85FEATURES DESCRIPTIONThe LM4674 is a single supply, high efficiency,2• Output Short Circuit Protecti ..
LP2966IMMX-2525 ,Dual 150mA Ultra Low-Dropout RegulatorLP2966 Dual 150mA Ultra Low-Dropout RegulatorMay 2001LP2966Dual 150mA Ultra Low-Dropout Regulator
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LP2966IMMX-3030 ,Dual 150mA Ultra Low-Dropout RegulatorApplicationsDropout Voltage: Varies linearly with load current. Typicallyn Cellular and Wireless
LP2966IMMX-3325 ,Dual 150mA Ultra Low-Dropout Regulatorapplicationsrequest with minimum orders. In all, 256 voltage combina-n Over temperature/over curren ..
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LM4674ATLX/NOPB
Filterless 2.5 Stereo Class D Audio Power Amplifier
LM4674A
www.ti.com SNAS366A –SEPTEMBER 2006–REVISED MAY 2013
LM4674A Filterless 2.5W Stereo ClassD Audio Power
Amplifier
Checkfor Samples: LM4674A
1FEATURES DESCRIPTIONThe LM4674Aisa single supply, high efficiency,
Output Short Circuit Protection 2.5W/channel, filterless switching audio amplifier.A
• Stereo ClassD Operation low noise PWM architecture eliminates the output
No Output Filter Required filter, reducing external component count, board area
consumption, system cost, and simplifying design.
• Logic Selectable Gain Independent Shutdown Control The LM4674Ais designedto meet the demandsof
mobile phones and other portable communication
• Minimum External Components devices. Operating froma single 5V supply, the
• Click and Pop Suppression device is capable of delivering 2.5W/channel of
Micro-Power Shutdown continuous output powertoa 4Ω load with less than
10% THD+N. Flexible power supply requirements
• Availablein Space-Saving 2mmx 2mmx allow operation from 2.4Vto 5.5V.
0.6mm DSBGA PackageThe LM4674A features high efficiency comparedto
APPLICATIONS conventional Class AB amplifiers. When driving an speaker froma 3.6V supply, the device features
• Mobile Phones 85% efficiencyat PO= 500mW. Four gain options are
• PDAs pin selectable through the GAIN0 and GAIN1 pins.
Laptops Output short circuit protection prevents the device
from being damaged during fault conditions. Superior
KEY SPECIFICATIONS click and pop suppression eliminates audible
transients on power-up/down and during shutdown.
• Efficiencyat 3.6V, 100mW into 8Ω 80% (typ) Independent left/right shutdown controls maximizes
• Efficiencyat 3.6V, 500mW into 8Ω 85% (typ) power savingsin mixed mono/stereo applications.
• Efficiencyat 5V, 1W into 8Ω 85% (typ) Quiescent Power Supply Currentat 3.6V
Supply 4mA Power Outputat VDD= 5V,RL= 4Ω, THD≤ 10%
2.5W (typ)= 5V,RL= 8Ω, THD≤ 10% 0.1μA
