參數(shù)資料
型號(hào)： 8405
廠商： Allegro MicroSystems, Inc.
英文描述： LOW-DROPOUT REGULATORS . HIGH EFFICIENCY
中文描述： 低壓差穩(wěn)壓器。高效
文件頁(yè)數(shù)： 3/8頁(yè)
文件大?。?/td> 118K
代理商： 8405
8405
LOW-DROPOUT
REGULATORS
www.allegromicro.com
ELECTRICAL CHARACTERISTICS
at T
A
= +25
°
C, V
E
≥
2.0 V, C
BYPASS
= TBD (unless otherwise noted).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Output Voltage
(reference specified V
O(nom)
)
V
O
V
I
≥
V
O(nom)
+ 1 V, 1 mA
≤
I
O
≤
150 mA*
V
I
≥
V
O(nom)
+ 1 V, 1 mA
≤
I
O
≤
150 mA*,
over operating temperature range
—
±
0.5
—
%
—
—
±
2.0
%
V
I
= V
O(nom)
, I
O
= 50 mA
V
I
= 6 V, I
O
= 10 mA, T
J
≤
125
°
C
—
—
-0.25
V
Output Volt. Temp. Coeff.
a
VO
—
TBD
—
mV/
°
C
Output Short-Circuit Current
I
OM
200
—
—
mA
Line Regulation
V
O(
VI)
at V
I
= V
O(nom)
+ 1 V, I
O
= 3 mA
and V
I
= 7 V, I
O
= 3 mA
—
1.0
2.0
mV
Load Regulation
V
O(
IO)
at V
I
= V
O(nom)
+ 1 V, I
O
= 1 mA
and V
I
= V
O(nom)
+ 1 V , I
O
= 150 mA*
—
2.0
—
mV
at V
I
= 7 V, I
O
= 1 mA
and V
I
= 7 V, I
O
= 150 mA*
—
2.0
—
mV
Dropout Voltage
V
I
min - V
O
I
O
= 100 mA
—
100
—
mV
Ground Terminal Current
I
GND
V
I
= V
O(nom)
+ 1 V, I
O
= 1 mA
—
80
100
μ
A
V
I
= V
O(nom)
+ 1 V, I
O
= 150 mA*
—
80
100
μ
A
V
I
= 7 V, I
O
= 1 mA
—
80
100
μ
A
V
I
= 7 V, I
O
= 150 mA*
V
I
≤
7 V, V
E
≤
0.8 V, I
O
= 0 mA
V
I
≥
V
O(nom)
+ 1 V, Output ON
V
I
≥
V
O(nom)
+ 1 V, Output OFF
—
80
100
μ
A
I
Q
—
—
1.0
μ
A
ENABLE Input Voltage
V
EH
2.0
—
—
V
V
EL
—
—
0.4
V
ENABLE Input Current
I
E
V
E
= V
I
= 7 V
—
—
±
1.0
μ
A
Internal Reference Voltage
V
REF
—
1.26
—
V
ADJUST Input Current
I
ADJ
A8405SLH-ADJ only
—
0.10
—
μ
A
Rejection Ratio
PSRR
V
I
= V
O(nom)
+ 1.5 V, V
i
= 100 mV,
I
O
= 30 mA, f = 60 Hz
10 Hz
≤
f
≤
100 kHz, I
O
= 10 mA, C
O
= 10
μ
F
—
70
—
dB
Output Noise
e
n
—
0.2
—
μ
V/
√
Hz
Thermal Shutdown
T
J
—
170
—
°
C
Typical values are at T
A
= +25
°
C and are given for circuit design information only.
* Pulse test (
≤
20 ms). See previous page for duty cycle limitations.
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