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參數(shù)資料
| 型號(hào)： | L4979MD13TR |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | LOW DROP VOLTAGE REGULATOR |
| 中文描述： | 低壓差穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 268K |
| 代理商： | L4979MD13TR |
L4979MD L4979D
4/10
VOLTAGE REGULATOR
V
o
V
o_ref
Output voltage
V
s
= 5.6 to 31V
I
o
= 1 to 150mA
4.90
5.00
5.10
V
V
o
I
short
Output short circuit current
(1)
V
s
= 13.5V
150
280
400
mA
V
o
I
lim
Output current limitation
(1)
V
s
= 13.5V
150
320
500
mA
V
s
, V
o
V
line
Line regulation voltage
V
s
= 5.6 to 31V
I
o
= 1 to 150mA
25
mV
V
o
V
load
Load regulation voltage
I
o
= 1 to 150mA
25
mV
V
s
, V
o
V
dp
Drop voltage
I
o
= 150mA
200
400
mV
V
s
, V
o
SVR
Ripple rejection
(2)
f
r
= 100 Hz
55
dB
RESET
R
es
V
res_l
Reset output low voltage
R
ext
= 5k
to Vo,
Vo > 1V
0.4
V
R
es
I
res_h
Reset output high leakage
current
V
res
= 5V
1
μ
A
R
es
R
_p_u
Internal Pull up resistance
with respect to V
o
12
25
50
k
R
es
V
o_th
Reset threshold voltage
V
s
= 5.6 to 31V
I
o
= 1 to 150mA
6%
below
V
o_ref
8%
below
V
o_ref
10%
below
V
o_ref
V
cr
V
rhth
Reset timing high threshold
V
s
= 13.5V
44%
V
o_ref
47%
V
o_ref
50%
V
o_ref
V
cr
V
rlth
Reset timing low threshold
V
s
= 13.5V
10%
V
o_ref
13%
V
o_ref
16%
V
o_ref
V
cr
I
cr
Charge current
V
s
= 13.5V
8
17
30
μ
A
V
cr
I
dr
Discharge current
V
s
= 13.5V
8
17
30
μ
A
R
es
t
rr_2
Reset delay time (3)
Vo = V
o_th
-100mV
100
250
700
μ
s
R
es
t
rd
Reset pulse delay
V
s
= 13.5V, C
tr
= 1nF
65
150
ms
WATCHDOG
W
i
V
ih
Input high voltage
V
s
= 13.5V
3.5
V
W
i
V
il
Input low voltage
V
s
= 13.5V
1.5
V
W
i
V
ih
Input hysteresis
V
s
= 13.5V
300
mV
W
i
I
i
Pull down current
V
s
= 13.5V
10
20
μ
A
V
cw
V
whth
High threshold
V
s
= 13.5V
2.20
2.35
2.50
V
V
cw
V
wlth
Low threshold
V
s
= 13.5V
0.50
0.65
0.80
V
Pin
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Table 5: Electrical Characteristics
(continued)
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