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參數(shù)資料
| 型號(hào)： | 7404 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TRIPLE VOLTAGE REGULATOR |
| 中文描述： | 三電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 287K |
| 代理商： | 7404 |
ST3M01
4/11
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, please refer to the typical operating
circut of the pag 1 for the external components values and connections. Unless otherwise noted
V
SHDN
=HIGH)
Note 1: For V
IN
< 1.9V the V
O(LB)
is out of regulation because of under dropout condition
Note 2: V
O(DC/DC)
= 3.5V force for an external DC source to avoid switching noise
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
I
Operating Input Voltage
DC/DC Converter Output
Voltage (Test Circuit A)
1.9
3.2
3.3
3.415
V
V
V
O(DC/DC)
2.24<V
IN
<3.3V;
0<I
O(LA)
<20mA;
-40 < T
J
< 85 °C
0<I
O(DC/DC)
<200mA;
0<I
O(LB)
<20mA;
3.3
ν
DC/DC Converter Efficency V
IN
=2.4V;
I
O(DC/DC)
=100mA;
I
O(LA)
=0mA; I
O(LB)
=0mA; T
J
= 25°C
2.24<V
IN
<3.3V;
0<I
O(LA)
<20mA;
-40 < T
J
< 85°C
2.24<V
IN
<3.3V;
0<I
O(LA)
<20mA;
-40 < T
J
< 85°C
V
IN
=2.4V;
I
O(LA)
=20mA;
C
O(LA)
=1
μ
F; C
REF
=0.1
μ
F; T
J
= 25°C
V
IN
=2.4V;
I
O(LB)
=20mA;
C
O(LB)
=1
μ
F; C
REF
=0.1
μ
F; T
J
= 25°C
V
IN
=3.3V;
No Load;
T
J
= 25°C
87
%
V
O(LA)
Linear A Output Voltage
(Test Circuit A)
0<I
O(DC/DC)
<200mA;
0<I
O(LB)
<20mA;
2.93
3
3.09
V
V
O(LB)
Linear B Output Voltage
(Test Circuit A)
0<I
O(DC/DC)
<200mA;
0<I
O(LB)
<20mA;
1.86
1.9
1.955
V
e
N(LA)
Linear A Thermal Output
Noise Voltage (Note 2)
V
O(DC/DC)
=3.5V;
10 < f < 80KHz;
60
μ
V
rms
e
N(LB)
Linear B Thermal Output
Noise Voltage (Note 2)
V
O(DC/DC)
=3.5V;
10 < f < 80KHz;
35
μ
V
rms
I
q(OFF)
Quiescent Current OFF
Mode DC/DC & L
A
OFF L
B
ON) (Test Circuit E)
Quiescent Current OFF
Mode (DC/DC & L
A
OFF L
B
ON) (Test Circuit F)
DC/DC Supply Current
(Test Circuit B)
Linear A Quiescent Current
(Test Circuit C)
V
SHDN
=LOW;
75
μ
A
I
q(OFF)
V
IN
=1.9V;
T
J
= 25°C
No Load;
V
SHDN
=HIGH;
50
μ
A
I
S(DC/DC)
V
IN
=2.24V;
No Load;
T
J
= 25°C
100
μ
A
I
q(LA)
V
IN
=2.24V;
I
O(LA)
=10mA;T
J
= 25°C
V
IN
=2.24V;
I
O(LB)
=10mA;T
J
= 25°C
V
SHDN
=HIGH with falling edge
V
O(DC/DC)
=3.5V;
220
μ
A
I
q(LB)
Linear B Quiescent Current
(Test Circuit C)
V
O(DC/DC)
=3.5V;
75
μ
A
V
BATT
Low Battery Detection
Range
Low Battery Detection
Hysteresys
LBO R
DSON
Control Input Logic Low
Control Input Logic High
Timer On Response Time
on DC/DC
1.96
2
2.04
V
V
BATT(HYS)
150
200
mV
R
ON(LBO)
V
ih
V
il
T
on
V
IN
=1.9V;
V
IN
>2.24V;
V
IN
>2.24V;
V
IN
=2.4V;
I
O(DC/DC)
=200mA
V
SHDN
=from GND to V
SHDN(MAX)
V
IN
>2.24V;
I
D
=5mA;
I
D
=5mA;
-40 < T
J
< 85°C
-40 < TJ < 85°C
C
O
=100
μ
F; T
J
= 25°C
T
J
= 25°C
10
V
V
ms
0.4
1.5
0.6
9
R
ON(V_GND)
Virtual GND RDSON
T
J
= 25°C
10
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