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參數(shù)資料
| 型號(hào)： | AP1187S7LA |
| 英文描述： | 1A Ultra Low Dropout Positive Adjustable Regulator |
| 中文描述： | 第1A超低壓差正，可調(diào)式穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 178K |
| 代理商： | AP1187S7LA |
AP1187
1A Ultra Low Dropout Positive Adjustable Regulator
Electrical Characteristics
Unless otherwise specified, these specifications apply over, C
IN
=1uF, C
OUT
=10uF, and T
J
=0 to 150
o
C. Typical value refer to T
J
=25
o
C.
V
OUT
= V
SENSE
.
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Aug 23, 2005
3/6
Sym.
Parameter
Test Condition
Min. Typ. Max.
Unit
V
REF
Reference Voltage T
J
=25
o
C,(V
IN
-V
OUT
)=0.5V, I
O
=10mA V
CTRL
=V
IN
+1V
Line Regulation
I
O
=10mA, V
OUT
+0.5V<V
IN
<12V V
CTRL
=V
IN
+1V
0mA<I
O
<1.0A, T
J
=25
o
C, (V
IN
– V
OUT
) = 2V,
V
CTRL
= V
IN
+ 1V
Dropout Voltage
(V
CTRL
-V
OUT
)
V
IN
=2.05V, I
O
=1.0A
Dropout Voltage
(V
IN
-V
OUT
)
V
CTRL
=3V, I
O
=1.0A
Current Limit
V
CTRL
=3V, V
IN
=2.05V,
V
O
=100mV, V
ADJ
=0V
Minimum Load
Current
Thermal
Regulation
V
CTRL
=5V, V
IN
=5V, I
O
=1.0A, V
ADJ
=0V, T
J
=25,
V
RIPPLE
=1Vpp at 120Hz
Control Pin
Current
V
CTRL
=2.75V, V
IN
=2.05V, I
O
=1.0A
Adjust Pin Current V
CTRL
=2.75V, V
IN
=2.05,V
ADJ
=0
Thermal
Resistance
Junction-to-Case
Power Dissipation board needed.
1.225 1.250 1.275
V
%
0.2
Load Regulation
1
%
V
ADJ
=0V for all conditions below.
1.5
1.7
V
V
ADJ
=0V for all conditions below.
0.5
0.6
V
1.1
A
V
CTRL
=5V, V
IN
=3.3V, V
ADJ
=0V
5
10
mA
30ms Pulse
0.01 0.02
%W
Ripple Rejection
60
70
dB
V
ADJ
=0V for all conditions below.
6
10
mA
50
120
μA
SOP-7: Control Circuitry/Power Transistor
20
O
C/W
1
2
W
Typical Application Circuit
470uF
+
470uF
+
5V
470uF
+
3.3V
2.5V/1A
ADJ
V
SENSE
NC
AP1187
121
ohm
121
ohm
V
IN
V
CTRL
V
IN
V
OUT
V
OUT
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