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US1206-25CD 반도체 회로 부품 판매점

1A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE & FIXED REGULATOR



UNISEM 로고
UNISEM
US1206-25CD 데이터시트, 핀배열, 회로
US1206/1207/1208/1209
1A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE & FIXED REGULATOR
PRELIMINARY DATASHEET
FEATURES
DESCRIPTION
Low Droput Voltage (500mV at 1A)
1% Voltage Reference Accuracy
Low Ground Current
10uA Quiescent Current in Shutdown
(US1207,1208)
Fast Transient Response
Current Limit and Thermal Shutdown
Error Flag Signal for Output out of Regulation
(US1207,1209)
Pin Compatible with MIC39100/101/102 series
APPLICATIONS
2.5V Supply from 3.3V Input for the new genera-
tion of Logic ICs
Computer Mother Board, Add on Cards
High Efficiency Post Regulator in SMPS
The US1206 family of devices are ultra low dropout 1A
regulators using PNP transistor as the pass element.
These products are ideal when a single input supply is
available only and the dropout voltage is less than 1V,
exceeding the minimum dropout characteristics of NPN/
PNP hybrid regulators. One common application of these
regulators are where input is 3.3V and a 2.5V output is
needed.
Besides the low dropout of less than 0.5V, other fea-
tures of the family of the parts are; micropower shutdown
capability and output UVLO detection where Flag pin is
switched low when output is below 5% of its nominal
point. The US1206-XX in SOT223 is pin compatible with
MIC39100-XX, US1207 and 1209 in SO8 power package
are compatible with MIC39101 and 39102 respectively.
TYPICAL APPLICATION
Vout 3
US1206-XX Gnd 2
Vin 1
Vout
C2
1206app1-1.0
Vin
C1
PACKAGE ORDER INFORMATION
Tj (°C)
0 TO 125
0 TO 125
0 TO 125
0 TO 125
0 TO 125
0 TO 125
0 TO 125
0 TO 125
3 LEAD
5 LEAD
TO252
TO263
US1206-18CD US1206-18CY
US1206-25CD US1206-25CY
US1206-33CD US1206-33CY
NA US1207-18CM
NA US1207-25CM
NA US1207-33CM
NA US1208CM
NA US1209CM
8 PIN PLASTIC
SOIC Power
US1206-18CM
US1206-25CM
US1206-33CM
US1207CS
US1207CS
US1207CS
US1208CS
US1209CS
Voltage Pin Functions
1.8V
2.5V
3.3V
1.8V
2.5V
3.3V
Adj
Adj
Vin, Vout, GND
Vin, Vout, GND
Vin, Vout, GND
Vin, Vout, GND, Enable, Flag
Vin, Vout, GND, Enable, Flag
Vin, Vout, GND, Enable, Flag
Vin, Vout, GND, Flag, Adj
Vin, Vout, GND, Adj, Enable
Rev. 1.1
6/26/00
2-1


US1206-25CD 데이터시트, 핀배열, 회로
US1206/1207/1208/1209
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
FRONT VIEW
US1208
FRONT VIEW
US1209
FRONT VIEW
5 Flag
5 Adj
5
4 Vout
4 Vout
4
3 Gnd
3 Gnd
3
2 Vin
2 Vin
2
1 Enable
1 Flag
1
Adj
Vout
Gnd
Vin
Enable
3 PIN PLASTIC TO263 ( M )
US1206-XX
FRONT VIEW
3 Vout
2 Gnd
1 Vin
θJA=35°C/W for 0.5" square pad
8 PIN PLASTIC POWER SOIC ( S )
US1207
TOP VIEW
US1208
TOP VIEW
Enable 1
8 Gnd
Flag 1
8 Gnd
Vin 2
7 Gnd
Vin 2
7 Gnd
Vout 3
6 Gnd
Vout 3
6 Gnd
Flag 4
5 Gnd
Adj 4
5 Gnd
US1209
TOP VIEW
Enable 1
8 Gnd
Vin 2
7 Gnd
Vout 3
6 Gnd
Adj 4
5 Gnd
θJA=35°C/W for 0.5" square pad
θJA=55°C/W for 1" Sq pad
3 PIN PLASTIC TO252 ( D )
US1206
FRONT VIEW
3 Vout
Tab is 4
Gnd
1 Vin
θJA=70°C/W for
0.5" Sq pad
3 PIN PLASTIC SOT223 ( Y )
US1206
TOP VIEW
Tab is
Gnd
3 Vout
2 Gnd
1 Vin
θJA=90°C/W for
0.4" Sq pad
ELECTRICAL SPECIFICATIONS
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
MIN TYP MAX UNITS
Reference Voltage
Vo Io=10mA
-1 1 %
See Table 1 for typical values
(Note 4)
-2 2
Line Regulation
dVi Vo+1V<Vin<12
0.06 %/V
Load Regulation (note 1)
dVL 10mA<Io<1A
0.7 %
1mA<Io<150mA
0.5 %
Output voltage Temp Coef. dVoT
20 100 ppm/°C
Dropout Voltage (note 2)
dVio Io=100mA (Note 4)
100 200
mV
Io=500mA (Note 4)
300 400
mV
Io=1000mA (Note 4)
500 650
mV
Ground Current (Note 3)
Iq Vin=Vo +1
Io=100mA (Note 4)
3 mA
Io=500mA (Note 4)
15 mA
Io=1000mA (Note 4)
50 mA
Current Limit
Icl Vo=0V
1.1 A
Minimum Input Voltage
Vinmin
2.1 2.3
V
US1208,1209
Adjust Pin Current
Iadj Vin=2.5V,Vo=Vadj (Note 4)
0.1 uA
Minimum Load Current
Iomin
1 mA
2-2
Rev. 1.1
6/26/00




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US1206-25CD

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US1206-25CY

1A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE & FIXED REGULATOR - UNISEM