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LM340 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
描述:
节省空间的高电压、高电流 3 引脚正电压稳压器
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P14P15
原理图在P12
封装尺寸在P22P23P25P26
标记信息在P22P23P24
封装信息在P21P22P23P24P25P26
技术参数、封装参数在P4
应用领域在P1P4P14P15
电气规格在P5P6P7P8
导航目录
LM340数据手册
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5
LM340
,
LM340A
,
LM7805
,
LM7812
,
LM7815
www.ti.com
SNOSBT0L –FEBRUARY 2000–REVISED SEPTEMBER 2016
Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815
Submit Documentation FeedbackCopyright © 2000–2016, Texas Instruments Incorporated
(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All
characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (t
w
≤ 10 ms, duty cycle ≤ 5%).
Output voltage changes due to changes in internal temperature must be taken into account separately.
6.5 LM340A Electrical Characteristics,
V
O
= 5 V, V
I
= 10 V
I
OUT
= 1 A, 0°C ≤ T
J
≤ 125°C (LM340A) unless otherwise specified
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O
Output voltage
T
J
= 25°C 4.9 5 5.1 V
P
D
≤ 15 W, 5 mA ≤ I
O
≤ 1 A
7.5 V ≤ V
IN
≤ 20 V
4.8 5.2
V
ΔV
O
Line regulation
7.5 V ≤ V
IN
≤ 20
V
T
J
= 25°C 3 10 mV
Over temperature, I
O
= 500 mA 10 mV
8 V ≤ V
IN
≤ 12 V
T
J
= 25°C 4 mV
Over temperature 12 mV
ΔV
O
Load regulation
T
J
= 25°C
5 mA ≤ I
O
≤ 1.5 A 10 25 mV
250 mA ≤ I
O
≤ 750 mA 15 mV
Over temperature, 5 mA ≤ I
O
≤ 1 A 25 mV
I
Q
Quiescent current
T
J
= 25°C 6 mA
Over temperature 6.5 mA
ΔI
Q
Quiescent current
change
T
J
= 25°C, I
O
= 1 A
7.5 V ≤ V
IN
≤ 20 V
0.8
mA
Over temperature, 5 mA ≤ I
O
≤ 1 A 0.5 mA
Over temperature, I
O
= 500 mA
8 V ≤ V
IN
≤ 25 V
0.8
mA
V
N
Output noise voltage T
A
= 25°C, 10 Hz ≤ f ≤ 100 kHz 40 μV
Ripple rejection
f = 120 Hz
8 V ≤ V
IN
≤ 18
V
T
J
= 25°C, , I
O
= 1 A 68 80
dB
Over temperature, I
O
= 500 mA
68
dB
R
O
Dropout voltage T
J
= 25°C, I
O
= 1 A 2 V
Output resistance f = 1 kHz 8 mΩ
Short-circuit current T
J
= 25°C 2.1 A
Peak output current T
J
= 25°C 2.4 A
Average TC of V
O
Min, T
J
= 0°C, I
O
= 5 mA −0.6 mV/°C
V
IN
Input voltage required to
maintain line regulation
T
J
= 25°C 7.5 V
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