LM4900MX ,265mW at 3.3V Supply Audio Power Amplifier with Shutdown ModeLM4900 265mW at 3.3V Supply Audio Power Amplifier with Shutdown ModeSeptember 2001LM4900265mW at 3. ..
LM4901LD ,1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic LevelElectrical Characteristics V =5V (Notes 1, 2)DDThe following specifications apply for the circuit s ..
LM4901MM ,1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Levelfeatures a low-power consumption shutdownn Improved pop & click circuitry eliminates noise duringmo ..
LM4901MMX ,1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Levelapplications. It is capable ofj Power Output at 5.0V, 1% THD, 8Ω 1.07W (typ)delivering 1 watt of co ..
LM4902LD ,265mW at 3.3V Supply Audio Power Amplifier with Shutdown ModeApplicationsKey Specificationsn Cellular phonesj n PDA’sTHD+N at 1kHz for 265mW continuousn Any por ..
LM4902LDX ,265mW at 3.3V Supply Audio Power Amplifier with Shutdown ModeElectrical Characteristics (Note 1) (Note 2)The following specifications apply for V = 5V, for all ..
LP2985IM5-12 ,Micropower 150 mA Low-Noise Low-Dropout Regulator in SOT-23 and micro SMD packages for Applications with Output Voltages [Less_Than_Or_Equal] ...LP2985LV Micropower 150 mA Low-Noise Low-Dropout Regulator in SOT-23 and micro SMDpackages for
LP2985IM5-135 ,Micropower 150 mA Low-Noise Low-Dropout Regulator in SOT-23 and micro SMD packages for Applications with Output Voltages [Less_Than_Or_Equal] ...Applications with Output Voltages ≤ 2.3VMay 2004LP2985LVMicropower 150 mA Low-Noise Low-Dropout Reg ..
LP2985IM5-2.0 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMDPackagesMarch ..
LP2985IM5-2.5 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMDPackagesMarch ..
LP2985IM5-2.6 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsuse absolute minimum board space.n Cellular PhonePrecision Output: 1% tolerance output ..
LP2985IM5-2.7 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2985 is a 150 mA, fixed-output voltage regulatordesigned t ..
LM4900M-LM4900MM-LM4900MMX-LM4900MX
265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode
LM4900
265mW at 3.3V Supply Audio Power Amplifier with
Shutdown Mode
General DescriptionThe LM4900isa bridged audio power amplifier capableof
delivering 265mWof continuous average power intoan8Ω
load with 1% THD+N froma 3.3V power supply.
Boomer® audio power amplifiers were designed specifically provide high quality output power froma low supply volt-
age while requiringa minimal amountof external compo-
nents. Since the LM4900 does not require output coupling
capacitors, bootstrap capacitorsor snubber networks,itis
optimally suitedfor low-power portable applications.
The LM4900 featuresan externally controlled, low power
consumption shutdown mode, and thermal shutdown protec-
tion.
The closed loop responseof the unity-gain stable LM4900
canbe configuredby external gain-setting resistors.
Key Specifications THD+Nat 1kHzfor 265mW continuous
average output power into 8Ω,
VDD= 3.3V 1.0% (max) THD+Nat 1kHzfor 675mW continuous
average output power into 8Ω,
VDD=5V 1.0% (max) Shutdown current 0.1µA (typ)
Features MSOP, LLP, and SOP packaging No output coupling capacitors, bootstrap capacitors,or
snubber circuits are necessary Thermal shutdown protection circuitry Unity-gain stable External gain configuration capability Latest generation "click and pop" suppression circuitry
Applications Cellular phones PDA’s Any portable audio application
Typical ApplicationFIGURE1. Typical Audio Amplifier Application Circuit
September 2001
LM4900
265mW
3.3V
Supply
Audio
Power
Amplifier
with
Shutdown
Mode
