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IRU1030-3.3-IRU103033-IRU1030-33
3A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR
International
Data Sheet No. PD94125
1:211 Rem fi er
3A LOW DROPOUT POSITIVE
FIXED 3.3V REGULATOR
FEATU RES DESCRIPTION
" Guaranteed < 1.3V Dropout at F ull Load Current The |RU1030-33 is a Iowdropout three-terminal fixed 3.3V
I: Fast Transient Response output regulator with minimum of 3A output current ca-
I: 1% Voltage Reference Initial Accuracy pability. This product is specifically designed to provide
a Output Current Limiting well regulated supply for low voltage IC applications re-
" Built-ln Thermal Shutdown quiring 3.3V output. The |RU1030-33 is guaranteed to
have <1.3V dropout at full load current making it ideal to
APPLICATIONS provide well regulated output with supply voltage as low
D Standard 3.3V Chip Set and Logic Applications as 4.6V input.
I YPICAL APPLICATION
330uF /\
1An T-
(r) |RU1030-33 vomE 3.31//3A
T-T 3:0 F
end Ili-
Figure 1 - Typical application of |RU1030-33
I YPICAL APPLICATION
Tl (°C) 3-PiN PLASTIC 3-PIN PLASTIC 2-PIN PLASTIC 2-PIN PLASTIC
T0-220 (T) TO-263 (M) Ultra Thin-Pak (P) TO-252 (D-Pak)
0 To 150 |RU1030-33CT |RU1030-33CM |RU1030-33CP |RU1030-33CD
Rev. 1.1
06/29/01
IRU1030-33
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin) B................................................... 7V
Power Dissipation B.................................................... Internally Limited
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 150°C
PACKAGE INFORMATION
3-PIN PLASTIC TO-220 (T) 3-PIN PLASTIC TO-263 (M) 2-PIN PLASTIC ULTRA THIN-PAK (P) 2-PIN PLASTIC TO-252 (D-Pak)
FRONTVIEW
3 1hn 3 I \An
. . T; bi
Tag 2 Vout T325 1 Till
1 Gnd 1 Cl Gnd
9JT=2.7°CNV 0JA=60°CNV 9JA=35°CNV for 1" Square pad 6JA=70°CNV for 1" Square pad 6JA=70°CIW for 0.5" Sq pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over Cin=1wF, Cout=10wF, and Tj=0 to 150°C.
Typical values refer to Tj=25°C.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Output Voltage Vo |o=10mA,Tj=25°C,Vin=5V 3.267 3.300 3.333 V
lo=10mA, Vin=5V 3.234 3.300 3.366
Line Regulation lo=10mA, 4.7V
Load Regulation (Note 1) Vin=5V, Vadj=0, 10mADropout Voltage (Note 2) AVo Note 2, lo=3A 1.1 1.3 V
Current Limit Vin=5V, dVo=100mV 3.1 A
Minimum Load Current Vin=5V 5 10 mA
(Note 3)
Thermal Regulation 30ms Pulse, Vin-Vo=3V, lo=3A 0.01 0.02 %NV
Ripple Rejection f=120Hz, Co=25wF Tantalum,
lo=1.5A, Vin-Vo=3V 60 70 dB
Adjust Pin Current Change lo=10mA, Vin-Vo=1.5V, Tj=25°C 0.2 5 WA
Temperature Stability Vin=5V, Vadl=0V,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 con- Note 3: Minimum load current is defined as the mini-
nections is required in order to maintain accurate data. mum current required at the output in order for the out-
put voltage to maintain regulation. Typically the resistor
Note 2: Dropoutvoltage is defined as the minimum dit- dividers are selected such that it automatically main-
ferential voltage between Vin and Vout required to main- tains this current.
tain regulation at Vout. It is measured when the output
voltage drops 1% below its nominal value.
Rev. 1.1
06l29l01
