lm4801 National Semiconductor Corporation, lm4801 Datasheet - Page 4

• Manufacturer Part Number: lm4801
• Description: 1w Stereo Audio Amplifier Plus Adjustable Ldo
• Manufacturer: National Semiconductor Corporation

www.national.com
I
V
∆V
e
V
I
I
V
I
T
T
Q
SHDN
SET
FAULT
Symbol
n
SD
ON
LDO Electrical Characteristics
DO
SHDN
FAULT
Unless otherwise specified, all limits guaranteed for V
T
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 2: The maximum power dissipation is dictated by T
allowable power dissipation is P
mounted and its DAP is soldered to a 2in
Note 3: Human body model, 100pF discharged through a 1.5kΩ resistor.
Note 4: Machine model, 220pF–240pF discharged through all pins.
Note 5: All voltages are measured with respect to the ground (GND) pins unless otherwise specified.
Note 6: Typicals are measured at 25˚C and represent the parametric norm.
Note 7: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 8: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 9: Output power is measured at the device terminals.
Note 10: Condition does not apply to input voltages below 2.5V since this is the minimum input operating voltage.
Note 11: Dropout voltage is measured by reducing V
version.
Note 12: The FAULT detection voltage is specified for the input to output voltage differential at which the FAULT pin goes active low.
O
J
= 25˚C. Boldface limits apply for the operating temperature extremes: −40˚C and 85˚C.
Supply Current
Shutdown Supply Current
Dropout Voltage
(Note 10), (Note 11)
Line Regulation
Load Regulation
Output Voltage Noise
Output Voltage Noise Density
SHDN Input Threshold
SHDN Input Bias Current
SET Input Leakage
FAULTDetection Voltage
FAULT Output Low Voltage
FAULT Off-Leakage Current
Thermal Shutdown
Temperature
Thermal Shutdown Hysteresis
Start-Up Time
Parameter
DMAX
= (T
2
JMAX
copper heatsink plane, is 41˚C/W.
− T
A
)/θ
IN
JA
Conditions
I
I
V
I
I
I
I
(Note 10)
100µA ≤ I
I
10Hz ≤ f ≤ 100kHz, C
V
(Note 10)
V
SHDN = GND or IN
SET = 1.3V
V
12)
I
FAULT = 3.6V, SHDN = 0V
C
Value
until V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
SINK
JMAX
. For the LM4801, T
O
IH
IL
O
OUT
, (V
, (V
= 0V, SHDN = GND
≥ 2.5V, I
, θ
O
= 0mA
= 300mA
= 1mA
= 200mA
= 300mA
= 1mA, (V
= 10mA, 10Hz ≤ f ≤ 100kHz
= 2mA
= 10µF, V
O
JA
drops 100mV from its nominal value at V
O
, and the ambient temperature T
+ 0.5V) ≤ V
(Continued)
+ 0.5V) ≤ V
OUT
IN
OUT
= V
≤ 300mA
O
O
O
= 200mA (Note
JMAX
+ 0.5V) ≤ V
+0.5V (Note 10), V
at 90% of Final
4
I
I
≤ 6V
= 150˚C. The θ
≤ 6V
OUT
= 10µF
I
≤ 6V
A
JA
and must be derated at elevated temperatures. The maximum
for the LM4801 in the 28-pin MXA28A package, when board
SHDN
IN
(Note 7)
-V
Min
-0.1
2
O
= V
= 0.5V. Dropout Voltage does not apply to the 1.8
IN
, C
IN
(Note 6)
0.001
0.002
0.115
0.01
Typ
225
120
190
120
160
120
= C
0.4
0.1
0.1
0.1
90
80
37
10
OUT
= 2.2µF, C
(Note 7)
Max
0.25
270
220
100
280
100
0.1
0.4
2.5
1
CC
nV/
= 33nF,
µV
%/mA
Units
%/V
mV
mV
µA
µA
nA
nA
nA
˚C
µs
V
V
RMS