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LM7905 データシート(PDF) 3 Page - Texas Instruments

部品番号 LM7905
部品情報  LM79XX Series 3-Terminal Negative Regulators
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM7905, LM7912, LM7915
www.ti.com
SNOSBQ7C – JUNE 1999 – REVISED MAY 2013
ELECTRICAL CHARACTERISTICS
Conditions unless otherwise noted: IOUT = 500mA, CIN = 2.2μF, COUT = 1μF, 0°C ≤ TJ ≤ +125°C, Power Dissipation ≤ 1.5W.
Part Number
LM7912C
LM7915C
Units
Output Voltage
−12V
−15V
Input Voltage (unless otherwise specified)
−19V
−23V
Symbol
Parameter
Conditions
Min
Typ
Max
Min
Typ
Max
VO
Output Voltage
TJ = 25°C
−11.5
−12.0
−12.5
−14.4
−15.0
−15.6
V
5mA
≤ IOUT ≤ 1A,
−11.4
−12.6
−14.25
−15.75
V
P
≤ 15W
(
−27 ≤ VIN ≤ −14.5)
(
−30 ≤ VIN ≤ −17.5)
V
ΔVO
Line Regulation
TJ = 25°C,
(1)
5
80
5
100
mV
(
−30 ≤ VIN ≤ −14.5)
(
−30 ≤ VIN≤ −17.5)
V
3
30
3
50
mV
(
−22 ≤ VIN ≤ −16)
(
−26 ≤ VIN ≤−20)
V
ΔVO
Load Regulation
TJ = 25°C,
(1)
5mA
≤ IOUT ≤ 1.5A
15
200
15
200
mV
250mA
≤ IOUT ≤ 750mA
5
75
5
75
mV
IQ
Quiescent Current
TJ = 25°C
1.5
3
1.5
3
mA
ΔIQ
Quiescent Current
With Line
0.5
0.5
mA
Change
(
−30 ≤ VIN ≤ −14.5)
(
−30 ≤VIN ≤ −17.5)
V
With Load, 5mA
≤ IOUT ≤ 1A
0.5
0.5
mA
Vn
Output Noise Voltage
TA = 25°C, 10Hz ≤ f ≤ 100Hz
300
375
μV
Ripple Rejection
f = 120 Hz
54
70
54
70
dB
(
−25 ≤ VIN ≤ −15)
(
−30 ≤ VIN≤ −17.5)
V
Dropout Voltage
TJ = 25°C, IOUT = 1A
1.1
1.1
V
IOMAX
Peak Output Current
TJ = 25°C
2.2
2.2
A
Average Temperature
IOUT = 5mA,
−0.8
−1.0
mV/°C
Coefficient of
0 C
≤ TJ ≤ 100°C
Output Voltage
(1)
Regulation is measured at a constant junction temperature by pulse testing with a low duty cycle. Changes in output voltage due to
heating effects must be taken into account.
Copyright © 1999–2013, Texas Instruments Incorporated
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Product Folder Links: LM7905 LM7912 LM7915


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