LM4819MX National Semiconductor, LM4819MX Datasheet
LM4819MX
Manufacturer Part Number
LM4819MX
Description
IC AMP AUDIO PWR .35W MONO 8SOIC
Manufacturer
National Semiconductor
Series
Boomer®r
Type
Class ABr
Specifications of LM4819MX
Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
350mW x 1 @ 16 Ohm
Voltage - Supply
2 V ~ 5.5 V
Features
Depop, Differential Inputs, Shutdown
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
LM4819MXTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM4819MX
Manufacturer:
NS/国半
Quantity:
20 000
Company:
Part Number:
LM4819MX/NOPB
Manufacturer:
TI
Quantity:
6 700
© 2002 National Semiconductor Corporation
LM4819
350mW Audio Power Amplifier with Shutdown Mode
General Description
The LM4819 is a mono bridged power amplifier that is ca-
pable of delivering 350mW
or 300mW
THD+N from a 5V power supply.
The LM4819 Boomer audio power amplifier is designed
specifically to provide high quality output power and mini-
mize PCB area with surface mount packaging and a minimal
amount of external components. Since the LM4819 does not
require output coupling capacitors, bootstrap capacitors or
snubber networks, it is optimally suited for low-power por-
table applications.
The closed loop response of the unity-gain stable LM4819
can be configured using external gain-setting resistors. The
device is available in LLP, MSOP, and SO package types to
suit various applications.
Typical Application
Boomer
®
is a registered trademark of National Semiconductor Corporation.
RMS
output power into an 8
RMS
output power into a 16 load
FIGURE 1. Typical Audio Amplifier Application Circuit
DS200136
load with 10%
Key Specifications
n THD+N at 1kHz, 350mW continuous average output
n THD+N at 1kHz, 300mW continuous average output
n Shutdown Current
Features
n LLP, SOP, and MSOP surface mount packaging.
n Switch on/off click suppression.
n Unity-gain stable.
n Minimum external components.
Applications
n General purpose audio
n Portable electronic devices
n Information Appliances (IA)
power into 16
power into 8
DS200136-1
www.national.com
10% (max)
10% (max)
0.7µA (typ)
April 2002
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