International Rectifier IRU1030-33CT, IRU1030-33CP Datasheet
Data Sheet No. PD94125
IRU1030-33
3A LOW DROPOUT POSITIVE
FIXED 3.3V REGULATOR
FEATURES
Guaranteed < 1.3V Dropout at Full Load Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-In Thermal Shutdown
APPLICATIONS
Standard 3.3V Chip Set and Logic Applications
TYPICAL APPLICATION
5V
DESCRIPTION
The IRU1030-33 is a low dropout three-terminal fixed 3.3V
output regulator with minimum of 3A output current capability. This product is specifically designed to provide
well regulated supply for low voltage IC applications requiring 3.3V output. The IRU1030-33 is guaranteed to
have <1.3V dropout at full load current
provide well regulated output with supply voltage as low
as 4.6V input.
C1
330uF
Vin
3
making it ideal to
Vout
Gnd
2
1
IRU1030-33
Figure 1 - Typical application of IRU1030-33
3.3V / 3A
C2
330uF
TYPICAL APPLICATION
Tj (°C) 3-PIN PLASTIC 3-PIN PLASTIC 2-PIN PLASTIC 2-PIN PLASTIC
TO-220 (T) TO-263 (M) Ultra Thin-Pak (P) TO-252 (D-Pak)
0 To 150 IRU1030-33CT IRU1030-33CM IRU1030-33CP IRU1030-33CD
Rev. 1.1
06/29/01
1
IRU1030-33
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin) .................................................... 7V
Power Dissipation ..................................................... 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)
Tab is
Vout
FRONT VIEW
3
Vin
2
Vout
1
Gnd
FRONT VIEW
Tab is
Vout
θJT=2.7°C/W θJA=60°C/W θJA=35°C/W for 1" Square pad θJA=70°C/W for 1" Square pad θJA=70°C/W for 0.5" Sq pad
3
2
1
Vin
Vout
Gnd
Tab is
Vout
FRONT VIEW
3
Vin
1
Gnd
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over Cin=1µF, Cout=10µF, and Tj=0 to 150!C.
Typical values refer to Tj=25!C.
Tab i s
Vou t
FRONT VIEW
3
Vin
1
Gnd
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Output Voltage Vo Io=10mA,Tj=25!C,Vin=5V 3.267 3.300 3.333 V
Io=10mA, Vin=5V 3.234 3.300 3.366
Line Regulation Io=10mA, 4.7V<Vin<7V 0.2 %
Load Regulation (Note 1) Vin=5V, Vadj=0, 10mA<Io<3A 0.4 %
Dropout Voltage (Note 2) ∆Vo Note 2, Io=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, Io=3A 0.01 0.02 %/W
Ripple Rejection f=120Hz, Co=25µF Tantalum,
Io=1.5A, Vin-Vo=3V 60 70 dB
Adjust Pin Current Change Io=10mA, Vin-Vo=1.5V, Tj=25!C 0.2 5 µA
Temperature Stability Vin=5V, Vadj=0V,Io=10mA 0.5 %
Long Term Stability Tj=125!C, 1000Hrs 0.3 1 %
RMS Output Noise Tj=25!C, 10Hz<f<10KHz 0.003 %Vo
Note 1: Low duty cycle pulse testing with Kelvin connections is required in order to maintain accurate data.
Note 3: Minimum load current is defined as the minimum current required at the output in order for the out-
put voltage to maintain regulation. Typically the resistor
Note 2: Dropout voltage is defined as the minimum differential voltage between Vin and Vout required to main-
dividers are selected such that it automatically main-
tains this current.
tain regulation at Vout. It is measured when the output
voltage drops 1% below its nominal value.
2
Rev. 1.1
06/29/01
Loading...