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參數(shù)資料
| 型號(hào)： | US1208CS |
| 廠商： | Unisem Group |
| 英文描述： | 1A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE & FIXED REGULATOR |
| 中文描述： | 第1A超低差型正，可調(diào) |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 39K |
| 代理商： | US1208CS |
2-2
Rev. 1.1
6/26/00
US1206/1207/1208/1209
Unless otherwise specified ,these specifications apply over ,Cin=Cout=10uF,Vin=Vo+1V, Vout=Vfb (for adjustable
version only), and Ta=25
°
C. Typical values refer to Ta=25
°
C.Low duty cycle pulse testing are used which keeps
junction and case temperatures equal to the ambient temperature.
PARAMETER
SYM
TEST CONDITION
Reference Voltage
Vo
Io=10mA
See Table 1 for typical values
(Note 4)
Line Regulation
dVi
Vo+1V<Vin<12
Load Regulation (note 1)
dVL
10mA<Io<1A
1mA<Io<150mA
Output voltage Temp Coef.
dVoT
Dropout Voltage (note 2)
dVio
Io=100mA (Note 4)
Io=500mA (Note 4)
Io=1000mA (Note 4)
Ground Current (Note 3)
Iq
Vin=Vo +1
Io=100mA (Note 4)
Io=500mA (Note 4)
Io=1000mA (Note 4)
Current Limit
Icl
Vo=0V
Minimum Input Voltage Vinmin
US1208,1209
Adjust Pin Current
Iadj
Vin=2.5V,Vo=Vadj (Note 4)
Minimum Load Current Iomin
MIN
-1
-2
TYP MAX
UNITS
%
1
2
0.06
%/V
%
%
0.7
0.5
100 ppm/
°
C
200
400
650
20
100
300
500
mV
mV
mV
3
15
50
mA
mA
mA
A
V
1.1
2.1
2.3
0.1
1
uA
mA
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin) ............................................................. 12V
Enable Input Voltage ........................................................... 12V
Storage Temperature Range ................................ -65°C TO 150°C
Operating Junction Temperature Range ...................... 0°C TO 135°C
PACKAGE INFORMATION
5 PIN PLASTIC TO263 ( M ) or 5 PIN POWER FLEX (P)
US1207 US1208 US1209
FRONT VIEW
Flag
ELECTRICAL SPECIFICATIONS
3 PIN PLASTIC TO263 ( M )
US1206-XX
FRONT VIEW
θ
JA
=35
°
C/W for 0.5" square pad
8 PIN PLASTIC POWER SOIC ( S )
US1207 US1208 US1209
Enable
Gnd
Vout
θ
JA
=35
°
C/W for 0.5" square pad
1
2
3
Vin
Gnd
Vout
1
2
3
4
5
Enable
Vin
Gnd
Vout
4
3
2
1
5
6
7
8
Gnd
Flag
Vout
Vin
Gnd
Gnd
θ
JA
=55
°
C/W for 1" Sq pad
3 PIN PLASTIC TO252 ( D )
US1206
FRONT VIEW
3 PIN PLASTIC SOT223 ( Y )
US1206
TOP VIEW
1
4
3
Vin
Vout
Tab is
Gnd
θ
JA
=70
°
C/W for
0.5" Sq pad
θ
JA
=90
°
C/W for
0.4" Sq pad
3
1
2
Vin
Gnd
Vout
Tab is
Gnd
FRONT VIEW
1
2
3
4
5
Flag
Vin
Gnd
Vout
Adj
FRONT VIEW
1
2
3
4
5
Enable
Vin
Gnd
Vout
Adj
4
3
2
1
5
6
7
8
Gnd
Adj
Vin
Flag
Gnd
Gnd
Gnd
4
3
2
1
5
6
7
8
Gnd
Adj
Vout
Vin
Enable
Gnd
Gnd
Gnd
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