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LM4850LDNationalN/a2000avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850MMXNATIONALN/a900avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850MMXNSN/a220avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850MTNS ?N/a170avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850MTXNSC ?N/a4avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850LDXNSN/a4189avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850MMNSCN/a180avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850MMNSN/a16696avaiMono 1.5 W / Stereo 300 mW Power Amplifier
LM4850LDNSN/a900avaiMono 1.5 W / Stereo 300 mW Power Amplifier


LM4850MM ,Mono 1.5 W / Stereo 300 mW Power AmplifierFeaturesexternal components. Since the LM4850 does not requirebootstrap capacitors or snubber netwo ..
LM4850MM ,Mono 1.5 W / Stereo 300 mW Power AmplifierGeneral Description Key Specificationsn Output Power at 1% THD+N, 1kHz:The LM4850 is an audio power ..
LM4850MMX ,Mono 1.5 W / Stereo 300 mW Power AmplifierLM4850 Mono 1.5 W / Stereo 300 mW Power AmplifierJuly 2002LM4850Mono 1.5 W / Stereo 300 mW Power Am ..
LM4850MMX ,Mono 1.5 W / Stereo 300 mW Power AmplifierGeneral Description Key Specificationsn Output Power at 1% THD+N, 1kHz:The LM4850 is an audio power ..
LM4850MT ,Mono 1.5 W / Stereo 300 mW Power AmplifierFeaturesexternal components. Since the LM4850 does not requirebootstrap capacitors or snubber netwo ..
LM4850MTX ,Mono 1.5 W / Stereo 300 mW Power AmplifierFeaturesexternal components. Since the LM4850 does not requirebootstrap capacitors or snubber netwo ..
LP2981AIM5-2.8 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesJanuary 2003LP ..
LP2981AIM5-2.9 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2981 is a 100 mA, fixed-output voltage regulatordesigned s ..
LP2981AIM5-2.9 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsPrecision Output. 0.75% tolerance output voltages avail-n Cellular Phoneable (Agrade).n ..
LP2981AIM5-3.0 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packagesapplications.n Guaranteed 100 mAoutput currentUsing an optimized VIP™ (Vertically Integrated PNP) p ..
LP2981AIM5-3.1 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2981 is a 100 mA, fixed-output voltage regulatordesigned s ..
LP2981AIM5-3.1 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesJanuary 2003LP ..


LM4850LD-LM4850LDX-LM4850MM-LM4850MMX-LM4850MT-LM4850MTX
Mono 1.5 W / Stereo 300 mW Power Amplifier
LM4850
Mono 1.5 W/ Stereo 300 mW Power Amplifier
General Description

The LM4850isan audio power amplifier capableof deliver-
ing 1.5W (typ)of continuous average power intoa mono4Ω
bridged-tied load (BTL) with 1% THD+Nor 95mWper chan-
nel of continuous average power into stereo 32Ω
single-ended (SE) loads with 1% THD+N, usinga5V power
supply.
The LM4850 can automatically switch between mono BTL
and stereoSE modes utilizinga headphone sense pin.Itis
idealfor any system that provides botha monaural speaker
output anda stereo lineor headphone output
Boomer audio power amplifiers were designed specificallyto
provide high quality output power witha minimal amountof
external components. Since the LM4850 does not require
bootstrap capacitorsor snubber networks,itis optimally
suitedfor low-power portable systems.
The LM4850 featuresan externally controlled, micropower
consumption shutdown mode and thermal shutdown protec-
tion. The unity-gain stable LM4850’s gainissetby external
gain-setting resistors
Note1:
An LM4850LDthat hasbeen properlymountedtoa circuit boardwill
deliver 1.9Winto3Ω(at1% THD+N). The other package optionsforthe
LM4850will deliver 1.1Winto8Ω(at1% THD+N).See Application Infor-
mation
sectionsfor further information concerning the LM4850LD,
LM4850MM,and LM4850MT.
Key Specifications
Output Powerat 1% THD+N, 1kHz: LM4850LD3Ω BTL 1.9W (typ) LM4850LD4Ω BTL 1.7W (typ) LM4850MM, MT4Ω BTL 1.5W (typ) LM4850LD, MM, MT8Ω BTL 1.1W (typ) LM4850LD, MM, MT8ΩSE 300mW (typ) LM4850LD, MM, MT 32ΩSE 95mW (typ) THD+Nat 1kHz, 95mW into 32ΩSE 1% (typ) Single Supply Operation 2.4to 5.5V Shutdown Current 44µA (typ)
Features
Mono 1.5W BTLor stereo 300mW output Headphone sense “Click and pop” suppression circuitry No bootstrap capacitors required Thermal shutdown protection Unity-gain stable LLP, TSSOP, and MSOP packaging
Applications
Portable computers Desktop computers PDA’s Handheld games
Typical Application

FIGURE1. Typical Audio Amplifier Application Circuit
July 2002
LM4850
Mono
Stereo
Power
Amplifier
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