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IRU1010-33
1A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR
International
Data Sheet No. P094121
TOR Rectifier
IA LOW DROPOUT POSITIVE
FIXED 3.3V REGULATOR
FEATURES DESCRIPTION
El Guaranteed < 1.3V Dropout at Full Load Current The |RU1010-33 is a Iowdropoutthree-terminal flxed out-
El Fast Transient Response put regulator with minimum of IA output current capabil-
Cl 1% Output Voltage Initial Accuracy ity. This product is speaTcally designed to provide well
Cl Built-ln Thermal Shutdown regulated supply for low voltage IC applications such as
El Available in SOT-223, D-Pak, Ultra Thin-PakTM VGA, sound & DVD cards. The IRU1010-33 is guaran-
and 8-Pin SOIC Surface-Mount Packages teed to have <1.3V dropout at full load current making it
APPLICATIONS
El VGA & Sound Card Applications
ideal to provide well regulated with 4.75V to 7V input
supply. The lRU1010-33 is spetyTcally designed to be
stable with low cost aluminum capacitors while main-
EI Standard 3.3V Chip Set and Logic Applications taining stability with low ESR tantalum caps.
TYPICAL APPLICATION
10uF] ,
VIN 3 T
|RU1010-33
VOUT 2 pr 3.3V/1A
Gnd 1 CC U
Figure 1 - Typical application of |RU1010-33 in a 5V to 3.3V regulator.
PACKAGE ORDER INFORMATION
T., (°C) 2-PIN PLASTIC 2-PIN PLASTIC 8-PIN PLASTIC 3-PIN PLASTIC
T0-252 (D-Pak) Ultra Thin-PakTM (P) SOIC (S) SOT-223 (Y)
0 To 150 lRU1010-33CD IRU1010-33CP IRU1010-33CS IRU1010-33CY
Rev. 1.5 1
02I03I03
International
IRU1010-33 TOR Rectifier
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V m) .................................................... 7V
Power Dissipation _.................................................... Internally Limited
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 150°C
2-PIN PLASTIC T O-252 (D-Pak) 2-PIN ULTRA THIN-PAKT'V' (P) 8-PIN PLASTIC SOIC (S) 3-PIN PLASTIC SOT-223 (Y)
VIN B I VIN VI E
N 1 El VOUT El ViN
Tab is Tab is NC E El VOUT Tab is L
VOW VOUT l NOE El VOUT VOUT E] VOUT
Gm 1 Tl Gnd Gnd E E] VOUT El Gnd
9JA=70°CIW for 0.5" Sq pad 9JA=70°CNV for 0.5" Sq pad 6JA=55°CIW for 1" Sq pad 6JA=90°CIW for 0.4" Sq pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over GN=1p.F, Vm=5V, Cbur=10wF, and T--0 to 125°C.
Typical values refer to Tu=25oC.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Output Voltage Vo lo=10mA, TJ=25°C 3.267 3.300 3.333 V
lo=10mA 3.235 3.300 3.365
Line Regulation lo=10mA, 4.75V
Load Regulation (Note 1) 10mA<|o<1A 17 mV
Dropout Voltage (Note 2) |o=1A 1.3 v
Current Limit AVo=100mV 1.1 A
Thermal Regulation 30ms Pulse, lo=1A 0.01 0.02 %/W
Ripple Rejection f=120Hz, Co=25wF Tantalum,
lo=0.5A 60 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 I: 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 Vow required to maintain
regulation at Vow. It is measured when the output voltage drops 1% below its nominal value.
2 Rev. 1.5
02/03/03
