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IRU1117-2.5CS-IRU1117-25CDTR-IRU1117-25CS-IRU1117-25CYTR
0.8A Fixed LDO Linear Regulator in a TO-252 (D-PAK) 2-Leads package
International
Data Sheet No. PD94141
TOR Rectifier IRU1117-25
800mA LOW DROPOUT POSITIVE
FIXED 2.5V REGULATOR
FEATURES DESCRIPTION
III Guaranteed < 1.2V Dropout at 800mALoad The |RU1117-25 is a low dropout three-terminal fIxed out-
Current
put regulator with minimum of 800mA output current ca-
El Fast Transient Response pability. This product is specfcally designed to provide
El 1% Voltage Reference Initial Accuracy well regulated supply for low voltage IC applications as
El Built-ln Thermal Shutdown well as generating clock supply for PC applications. The
D Available in SOT-223, D-Pak, Ultra Thin-PakTM |RU1117-25 is guaranteed to have <1.2V dropout at full
and 8-Pin SOIC Surface-Mount Packages load current making it ideal to provide well regulated with
3.8V input supply. The |RU1117-25 is spetyTcally de-
APPLICATIONS signed to be stable with low cost aluminum capacitors
n Low Voltage IC Supply Applications while maintaining stability with low ESR tantalum caps.
n PC Clock Supply Voltage
TYPICAL APPLICATION
5"/)'-c,Ir-
10uF I
|RU1117-25
__t '2' T
Figure 1 - Typical application
2.5V/ 800mA
of |RU1117-25 in a 5V to 2.5V regulator.
PACKAGE ORDER INFORMATION
To (°C) 2-PIN PLASTIC 2-PIN PLASTIC 8-PIN PLASTIC 3-PIN PLASTIC
TO-252 (D-Pak) Ultra Thin-PakTM (P) SOIC (S) SOT-223 (Y)
0 To 150 lRU1117-25CD IRU1117-25CP IRU1117-25CS lRU1117-25CY
Rev. 1.5 1
02/04/03
IRU1117-25
International
TOR Rectifier
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V IN) ....................................................
Power Dissipation _....................................................
Storage Temperature Range ......................................
Operating Junction Temperature Range .....................
Internally Limited
-65°C To 150°C
0°C To 150°C
PACKAGE INFORMATION
2-PIN PLASTIC TO-252 (D-Pak)
2-PIN ULTRA THIN-PAKTM (P)
8-PIN PLASTIC SOIC (S)
3-PIN PLASTIC SOT-223 (Y)
Tab is
1 Grad
9JA=70°CIW for 0.5" Sq pad
3 : VIN
Tab is
VOUT l
1 Cl Gnd
9JA=70°CIW for 0.5" Sq pad
va ElvOur
NCE ElVour
GndIZ EVour
9JA=55°C/W for 1" Sq pad
Tabisl:
0JA=90°CNV for 0.4" Sq pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over GN=1p.F, Vm=5V, (hur--10wF, and T--0 to 125°C.
Typical values refer to TJ=25°C.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Output Voltage Vo Io=10mA, TJ=25°C 2.475 2.500 2.525 V
lo=10mA 2.450 2.500 2.550
Line Regulation lo=10mA, 4.75V
Load Regulation (Note 1) 10mA<|0<800mA 17 mV
Dropout Voltage (Note 2) lo=1A 1.2 1.3 V
lo=800mA 1.1 1.2
Current Limit AVo=100mV 1.1 A
Thermal Regulation 30ms Pulse, lo=800mA 0.01 0.02 %/W
Ripple Rejection f=120Hz, Co=25wF Tantalum,
lo=0.5A 70 dB
Temperature Stability lo=10mA 0.5 %
Long Term Stability TJ=125°C, 1000Hrs 0.3 1 %
RMS Output Noise TJ=25°C, 10HzNote 1: Low duty cycle pulse testing with Kelvin connections is required in order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum differential voltage between VIN and VouT required to maintain
regulation at VOUT. It is measured when the output voltage drops 1% below its nominal value.
Rev. 1.5
02/04/03
