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LM2931-N データシート(PDF) 6 Page - Texas Instruments

部品番号 LM2931-N
部品情報  LM2931-N Series Low Dropout Regulators
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ホームページ  http://www.ti.com
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LM2931-N データシート(HTML) 6 Page - Texas Instruments

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LM2931-N
SNOSBE5G – MARCH 2000 – REVISED APRIL 2013
www.ti.com
ELECTRICAL CHARACTERISTICS FOR ADJUSTABLE VERSION
VIN = 14V, VOUT = 3V, IO = 10 mA, TJ = 25°C, R1 = 27k, C2 = 100 μF (unless otherwise specified)
(1)
Parameter
Conditions
Typ
Limit
Units Limit
Reference Voltage
1.20
1.26
VMAX
1.14
VMIN
IO ≤ 100 mA, −40°C ≤ Tj ≤ 125°C, R1 = 27k
1.32
VMAX
Measured from VOUT to Adjust Pin
1.08
VMIN
Output Voltage Range
24
VMAX
3
VMIN
Line Regulation
VOUT + 0.6V ≤ VIN ≤ 26V
0.2
1.5
mV/VMAX
Load Regulation
5 mA
≤ IO ≤ 100 mA
0.3
1
%MAX
Output Impedance
100 mADC and 10 mArms, 100 Hz–10 kHz
40
m
Ω/V
Quiescent Current
IO = 10 mA
0.4
1
mAMAX
IO = 100 mA
15
mA
During Shutdown RL = 500Ω
0.8
1
mAMAX
Output Noise Voltage
10 Hz–100 kHz
100
μVrms/V
Long Term Stability
0.4
%/1000 hr
Ripple Rejection
fO = 120 Hz
0.02
%/V
Dropout Voltage
IO ≤ 10 mA
0.05
0.2
VMAX
IO = 100 mA
0.3
0.6
VMAX
Maximum Operational Input
Voltage
33
26
VMIN
Maximum Line Transient
IO = 10 mA, Reference Voltage ≤ 1.5V
70
60
VMIN
T = 1 ms,
τ ≤ 100 ms
Reverse Polarity Input
VO ≥ −0.3V, RL = 500Ω
Voltage, DC
−30
−15
VMIN
Reverse Polarity Input
T = 1 ms,
τ ≤ 100 ms, RL = 500Ω
Voltage, Transient
−80
−50
VMIN
On/Off Threshold Voltage
VO=3V
On
2.0
1.2
VMAX
Off
2.2
3.25
VMIN
On/Off Threshold Current
20
50
μAMAX
(1)
See circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used.
6
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