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TC1266 Scheda tecnica(PDF) 2 Page - Microchip Technology

Il numero della parte TC1266
Spiegazioni elettronici  200mA PCI LDO
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1266 Scheda tecnica(HTML) 2 Page - Microchip Technology

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TC1266
DS21377B-page 2
© 2002 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Input Supply Voltage (VIN)..............-0.5V to +7V (Max)
Auxiliary Supply Voltage (VAUX) .....-0.5V to +7V (Max)
LDO Output Current (IOUT)................................200mA
Thermal Impedance,
Junction-to-Ambient (
θJA)............130°C/W for SOIC
ESD Rating .......................................................... 2 KV
Operating Temperature Range (TA)........-5°C to +70°C
Storage Temperature Range (TSTG) ...-65°C to +150°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC1266 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = +25°C, VIN =5V, VAUX =3.3V, IOUT =0.1mA,COUT =4.7µF, unless otherwise noted. Boldface
type specifications apply over full operating temperature range.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
VIN
Supply Voltage
4.3
5.0
5.5
VVAUX =0V
IGND
Ground Current
230
260
450
500
µAVAUX =0V (Note 6)
VAUX =3.3V (Note 6)
IVIN
Reverse Leakage from VAUX
—-0.1
-1.0
µAVAUX =3.6V, VIN =0V, IOUT =0mA
VAUX
Supply Voltage
3.0
3.3
3.6
V
IQ(AUX)
Quiescent Current
50
70
100
µAVIN =0V, IOUT =0mA
60
80
120
µAV
IN =5V, IOUT=0mA
IVAUX
Reverse Leakage from VIN
—-0.1
-1.0
µAVIN =5,5V, VAUX =0V, IOUT =0mA
VTH(LO)
5V Detector
Low Threshold Voltage
3.75
3.90
4.05
VVIN Falling (Notes 2, 3)
VHYST
5V Detector
Hysteresis Voltage
200
260
300
mV
(Notes 2, 3)
VTH(HI)
5V Detector
High Threshold Voltage
4.0
4.15
4.30
VVIN Rising (Notes 2, 3)
VOUT
LDO Output Voltage
3.300
V
IOUT =20mA
3.234
3.366
4.3V
≤ VIN ≤ 5.5V, 0mA ≤ IOUT ≤ 200mA
3.000
3.75V
≤ VIN ≤ 4.3V,
0mA
≤ IOUT ≤ 200mA (Note 4)
IOUT
Output Current
200
mA
REG(LINE)
Line Regulation
-0.5
0.05
0.5
%VIN = 4.3V to 5.5V
REG(LOAD)
Load Regulation
-0.5
0.05
0.5
%IOUT= 0.1mA to 200mA
Note
1:
Ensured by design.
2:
See 5V Detect Thresholds, Figure 4-1.
3:
Recommended source impedance for 5V supply:
≤ 0.25Ω. This will ensure that IOUT xRSOURCE <VHYST,thus avoidingDR toggling during
5V detect threshold transitions.
4:
In Application Circuit, Figure 3-1.
5:
See Timing Diagram, Figure 4-2.
6:
Ground Current is independent of ILOAD.


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