MT1117
◆
ORDERING INFORMATION
DEVICE
PACKAGE
VOUT VOLTS
TA (OC
)
MT1117A
A
SOT-223
X.X_ 1.5 / 1.8 / 2.5 / 2.8 / 3.0 / 3.3
0~70
MT1117-X.X A
◆
POWER DISSIPATION TABLE:
θJA
Df( mW/OC)
TA≤ 25OC
Power rating(mW)
TA=70OC
Power rating(mW)
TA= 85OC
Power rating (mW)
Package
(OC /W )
TA≥ 25OC
A
156
7.35
919
588
478
Note :
1.θJA: Thermal Resistance-Junction to Ambient, DF : Derating factor, Po: Power consumption.
Junction Temperature Calculation:
TJ = TA+ (PD × θJA), Po = DF × (TJ- TA)
The θJA numbers are guidelines for the thermal performance of the device/PC-board system.
All of the above assume no ambient airflow.
2.θJT: Thermal Resistance-Junction to Ambient, TC: case(Tab) temperature, TJ = TC + (PD × θJT)
For A package, θJT = 15.0OC /W.
For B package, θJT = 7.0OC /W.
◆
RECOMMENDED OPERATING CONDITIONS:
Recommended Operating
Parameter
Symbol
Units
Min.
3
Typ.
Max.
VIN
6
V
Input Voltage
IO
0.1
1.0
4.7
mA
μF
μF
Load Current (with adequate heatsinking)
Input Capacitor (VIN to GND)
C
IN
COUT
Output Capacitor with ESR of 10Ω max., (VOUT to GND)
Junction temperature
TJ
125
OC
◆
TYPICAL APPLICATIONS:
Fixed Voltage Regulator:
VIN
VOUT
MT1117-X.X
CIN
1μF
COUT
4.7μF
I
Q
- 2 -
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SIRECT [ Sirectifier Global Corp. ]
