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IRU1050-33CT [INFINEON]

5A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR; 5A低压差正固定3.3V稳压器
IRU1050-33CT
型号： IRU1050-33CT
厂家： Infineon    Infineon
描述：

5A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR
5A低压差正固定3.3V稳压器

线性稳压器IC 调节器 电源电路 输出元件 局域网
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Data Sheet No. PD94127  
IRU1050-33  
5A LOW DROPOUT POSITIVE  
FIXED 3.3V REGULATOR  
DESCRIPTION  
The IRU1050-33 is a low dropout three-terminal fixed 3.3V  
output regulator with minimum of 5A output current ca-  
pability. This product is specifically designed to provide  
well regulated supply for low voltage IC applications re-  
quiring 3.3V output. The IRU1050-33 is guaranteed to  
have <1.3V dropout at full load current making it ideal to  
provide well regulated output with supply voltage as low  
as 4.6V input.  
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  
C1  
330uF  
V
IN  
3
2
1
V
OUT  
3.3V / 5A  
IRU1050-33  
C2  
330uF  
Gnd  
Figure 1 - Typical application of IRU1050-33.  
PACKAGE ORDER INFORMATION  
TJ (°C)  
3-PIN PLASTIC  
T0-220 (T)  
IRU1050-33CT  
3-PIN PLASTIC  
TO-263 (M)  
IRU1050-33CM  
2-PIN PLASTIC  
Ultra Thin-PakTM (P)  
IRU1050-33CP  
2-PIN PLASTIC  
TO-252 (D-Pak)  
IRU1050-33CD  
0 To 150  
Rev. 1.4  
08/01/02  
www.irf.com  
1
IRU1050-33  
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-PAKTM (P)  
2-Pin Plastic TO-252 (D-Pak)  
FRONT VIEW  
3
FRONT VIEW  
FRONTVIEW  
FRONT VIEW  
3
VIN  
VIN  
3
VIN  
Tab is  
VOUT  
3
2
1
VIN  
Tab is  
VOUT  
Tab is  
Tab is  
V OUT  
2
1
VOUT  
Gnd  
VOUT  
Gnd  
VOUT  
1
1
Gnd  
Gnd  
qJT=2.7°C/W qJA=60°C/W  
qJA=35°C/W for 1" Square pad  
qJA=70°C/W for 1" Square pad  
qJA=70°C/W for 0.5" Sq pad  
ELECTRICAL SPECIFICATIONS  
Unless otherwise specified, these specifications apply over CIN=1µF, COUT=10µF, and TJ=0 to 1508C.  
Typical values refer to TJ=258C.  
PARAMETER  
Output Voltage  
SYM  
Vo  
TEST CONDITION  
Io=10mA, TJ=258C, VIN=5V  
Io=10mA, VIN=5V  
MIN  
3.267  
3.234  
TYP  
3.3  
3.3  
MAX UNITS  
3.333  
3.366  
0.2  
V
Line Regulation  
Io=10mA, 4.7V<VIN<7V  
VIN=3.3V, 10mA<Io<5A  
%
%
Load Regulation (Note 1)  
Dropout Voltage (Note 2)  
Current Limit  
Minimum Load Current (Note 3)  
Thermal Regulation  
Ripple Rejection  
0.4  
∆Vo Note 2, Io=5A  
VIN=5V, ∆Vo=100mV  
1.1  
1.3  
V
5.1  
60  
A
VIN=5V  
5
0.01  
10  
0.02  
mA  
%/W  
30ms Pulse, VIN-Vo=3V, Io=5A  
f=120Hz, Co=25µF Tantalum,  
Io=2.5A, VIN-Vo=3V  
VIN=5V, Io=10mA  
70  
0.5  
dB  
%
Temperature Stability  
Long Term Stability  
RMS Output Noise  
TJ=258C, 1000Hrs  
TJ=258C, 10Hz<f<10KHz  
0.3  
0.003  
1
%
%Vo  
Note 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: Dropout voltage is defined as the minimum dif- 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. 1.4  
08/01/02  
www.irf.com  
2
IRU1050-33  
PIN DESCRIPTIONS  
PIN # PIN SYMBOL  
PIN DESCRIPTION  
Gnd  
1
2
This pin must be connected to ground plane using a low inductance short connection.  
VOUT  
The output of the regulator. A minimum of 10µF capacitor must be connected from this pin  
to ground to insure stability.  
VIN  
3
The input pin of the regulator. Typically a large storage capacitor is connected from this  
pin to ground to insure that the input voltage does not sag below the minimum dropout  
voltage during the load transient response. This pin must always be 1.3V higher than VOUT  
in order for the device to regulate properly.  
BLOCK DIAGRAM  
VIN 3  
2 VOUT  
+
+
1.25V  
CURRENT  
LIMIT  
THERMAL  
SHUTDOWN  
1 Gnd  
Figure 1 - Simplified block diagram of the IRU1050-33.  
APPLICATION INFORMATION  
Stability  
The IRU1050-33 requires the use of an output capacitor as part of the frequency compensation in order to make the  
regulator stable. Typical designs for microprocessor applications use standard electrolytic capacitors with a typical  
ESR in the range of 50 to 100mΩ and an output capacitance of 500 to 1000µF. Fortunately as the capacitance  
increases, the ESR decreases resulting in a fixed RC time constant. The IRU1050-33 takes advantage of this  
phenomena in making the overall regulator loop stable. For most applications a minimum of 100µF aluminum  
electrolytic capacitor such as Sanyo MVGX series, Panasonic FA series as well as the Nichicon PL series insures  
both stability and good transient response.  
IR WORLD HEADQUARTERS:233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105  
TAC Fax: (310) 252-7903  
Visit us at www.irf.com for sales contact information  
Data and specifications subject to change without notice. 02/01  
Rev. 1.4  
08/01/02  
www.irf.com  
3
IRU1050-33  
(D) TO-252 Package  
2-Pin  
K
A
B
C
L
M
N
78  
458  
D
J
E
O
P
Q
R
G
F
S
H
R1  
SYMBOL MIN  
MAX  
A
B
6.477 6.731  
5.004 5.207  
0.686 0.838  
7.417 8.179  
C
D
E
C
L
9.703 10.084  
0.635 0.889  
2.286 BSC  
F
G
H
J
4.521 4.623  
∅1.52 ∅1.62  
2.184 2.388  
0.762 0.864  
K
L
M
N
O
P
1.016  
1.118  
5.969 6.223  
1.016  
0
1.118  
0.102  
Q
R
R1  
S
0.534 0.686  
R0.31 TYP  
R0.51 TYP  
0.428 0.588  
NOTE: ALL MEASUREMENTS  
ARE IN MILLIMETERS.  
Rev. 1.4  
08/01/02  
www.irf.com  
4
IRU1050-33  
(M) TO-263 Package  
3-Pin  
A
E
U
K
S
V
B
M
H
L
P
D
G
N
R
C
C
L
SYMBOL  
MIN  
MAX  
A
B
C
D
E
G
H
K
L
10.05 10.312  
8.28  
4.31  
0.66  
1.14  
8.763  
4.572  
0.91  
1.40  
2.54 REF  
14.73 15.75  
1.40  
0.00  
2.49  
0.33  
1.68  
0.254  
2.74  
M
N
P
R
S
U
V
0.58  
2.286 2.794  
08  
88  
2.41  
2.67  
6.50 REF  
7.75 REF  
NOTE: ALL MEASUREMENTS  
ARE IN MILLIMETERS.  
Rev. 1.4  
08/01/02  
www.irf.com  
5
IRU1050-33  
(P) Ultra Thin-PakTM  
2-Pin  
A
A1  
E
U
K
B
V
H
M
L
P
G
D
G1  
N
C
R
C
L
SYMBOL  
MIN  
5.91  
5.54  
6.02  
1.70  
0.63  
0.17  
2.16  
4.45  
9.42  
0.76  
0.02  
0.89  
0.25  
0.94  
28  
MAX  
6.17  
5.79  
6.27  
2.03  
0.79  
0.33  
2.41  
4.70  
9.68  
1.27  
0.13  
1.14  
0.25  
1.19  
68  
A
A1  
B
C
D
E
G
G1  
H
K
L
M
N
P
R
U
V
2.92  
3.30  
5.08 NOM  
NOTE: ALL MEASUREMENTS  
ARE IN MILLIMETERS.  
Rev. 1.4  
08/01/02  
www.irf.com  
6
IRU1050-33  
(T) TO-220 Package  
3-Pin  
H1  
Q
L
b1  
e3  
e
e1  
C
L E  
b
R
E-PIN  
CP  
a (5x)  
C1  
J1  
A
C
L
F
D
SYMBOL  
MIN  
4.06  
38  
MAX  
A
a
4.83  
7.58  
b
0.63  
1.14  
0.38  
1.02  
1.52  
0.56  
b1  
C1  
CP  
D
3.71D 3.96D  
14.22 15.062  
E
9.78  
2.29  
4.83  
1.14  
1.14  
5.94  
2.29  
10.54  
2.79  
5.33  
1.40  
1.40  
6.55  
2.92  
e
e1  
e3  
F
H1  
J1  
L
13.716 14.22  
Q
2.62  
2.87  
6.17  
R
5.588  
NOTE: ALL MEASUREMENTS  
ARE IN MILLIMETERS.  
Rev. 1.4  
08/01/02  
www.irf.com  
7
IRU1050-33  
PACKAGE SHIPMENT METHOD  
PKG  
PACKAGE  
PIN  
PARTS  
PARTS  
T & R  
DESIG  
DESCRIPTION  
COUNT  
PER TUBE  
PER REEL  
Orientation  
D
M
P
T
TO-252, (D-Pak)  
TO-263  
Ultra Thin-PakTM  
2
3
2
3
75  
50  
75  
50  
2500  
750  
2500  
---  
Fig A  
Fig B  
Fig C  
---  
TO-220  
1
1
1
1
1
1
Feed Direction  
Figure A  
Feed Direction  
FigureB  
1
1
1
Feed Direction  
FigureC  
IR WORLD HEADQUARTERS:233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105  
TAC Fax: (310) 252-7903  
Visit us at www.irf.com for sales contact information  
Data and specifications subject to change without notice. 02/01  
Rev. 1.4  
08/01/02  
www.irf.com  
8

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