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LM2941LDX Datasheet(PDF) 6 Page - Texas Instruments

No. de pieza LM2941LDX
Descripción Electrónicos  1A Low Dropout Adjustable Regulator
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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LM2941LDX Datasheet(HTML) 6 Page - Texas Instruments

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LM2941, LM2941C
SNVS770I – JUNE 1999 – REVISED JANUARY 2015
www.ti.com
Electrical Characteristics: LM2941T, LM2941S, LM2941LD (continued)
5 V
≤ VOUT ≤ 20 V, VIN = VOUT + 5 V, COUT = 22 μF, unless otherwise specified. MIN (minimum) and MAX (maximum)
specifications in apply over the full Operating Temperature Range (unless otherwise specified) and typical values apply at TJ
= 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ON/OFF threshold
IOUT ≤ 1 A
1.30
0.80
voltage ON
V
ON/OFF threshold
IOUT ≤ 1 A
2
1.3
voltage OFF
VON/OFF = 2 V, IOUT ≤ 1 A
50
300
ON/OFF threshold
μA
current
VON/OFF = 2 V, IOUT ≤ 1 A, TJ = 25°C
50
100
6.6 Electrical Characteristics: LM2941CT, LM2941CS
5 V
≤ VOUT ≤ 20 V, VIN = VOUT + 5 V, COUT = 22 μF, unless otherwise specified. MIN (minimum) and MAX (maximum)
specifications in apply over the full Operating Temperature Range (unless otherwise specified) and typical values apply at TJ
= 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
5 mA
≤ IOUT ≤ 1 A
(1)
1.211
1.275
1.339
Reference voltage
V
5 mA
≤ IOUT ≤ 1 A
(1), T
J = 25°C
1.237
1.275
1.313
VOUT + 2 V ≤ VIN ≤ 26 V, IOUT = 5 mA, TJ =
Line regulation
4
10
mV/V
25°C
Load regulation
50 mA
≤ IOUT ≤ 1 A, TJ = 25°C
7
10
mV/V
Output impedance
100 mADC and 20 mArms, ƒOUT = 120 Hz
7
m
Ω/V
VOUT + 2 V ≤ VIN < 26 V, IOUT = 5 mA, TJ =
10
15
mA
25°C
Quiescent current
VIN = VOUT + 5 V, IOUT = 1 A
30
60
mA
VIN = VOUT + 5 V, IOUT = 1 A, TJ = 25°C
30
45
10 Hz to 100 kHz
0.003%
RMS output noise, % of VOUT
IOUT = 5 mA
Ripple rejection
ƒOUT = 120Hz, 1 Vrms, IL = 100 mA, TJ = 25°C
0.005
0.02
%/V
Long-term stability
0.4
%/1000 Hr
IOUT = 1A
0.5
1
V
Dropout voltage
IOUT = 1A, TJ = 25°C
0.5
0.8
IOUT = 100 mA
110
200
mV
Short-circuit current
VIN max = 26 V
(2), T
J = 25°C
1.6
1.9
A
VOUT max 1 V above nominal VOUT, ROUT = 100
55
Maximum line transient
45
V
Ω, t ≤ 100 ms, , TJ = 25°C
Maximum operational input
TJ = 25°C
26
31
VDC
voltage
Reverse polarity
ROUT = 100 Ω, VOUT ≥ −0.6 V, TJ = 25°C
−15
−30
DC input voltage
V
Reverse polarity
t
≤ 100 ms, ROUT = 100 Ω, TJ = 25°C
−45
−55
transient input voltage
ON/OFF threshold
IOUT ≤ 1 A, TJ = 25°C
1.3
0.8
voltage ON
V
ON/OFF threshold
IOUT ≤ 1 A, TJ = 25°C
2
1.3
voltage OFF
ON/OFF threshold
VON/OFF = 2 V, IOUT ≤ 1 A, TJ = 25°C
50
100
μA
current
(1)
The output voltage range is 5 V to 20 V and is determined by the two external resistors, R1 and R2. See Typical Application.
(2)
Output current capability will decrease with increasing temperature, but will not go below 1 A at the maximum specified temperatures.
6
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Product Folder Links: LM2941 LM2941C


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