IRU1015-33CMTR [INFINEON]
Fixed Positive LDO Regulator, 3.3V, 1.3V Dropout, PSSO3, PLASTIC, TO-263, 3 PIN;
| 型号： | IRU1015-33CMTR |
| 厂家： | 
Infineon |
| 描述： | Fixed Positive LDO Regulator, 3.3V, 1.3V Dropout, PSSO3, PLASTIC, TO-263, 3 PIN 输出元件 调节器 |
| 文件： | 总4页 (文件大小：37K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IRU1015-33
1.5A LOW DROPOUT POSITIVE
FIXED 3.3V OUTPUT REGULATOR
DESCRIPTION
FEATURES
The IRU1015-33 is a low dropout three terminal fixed
3.3V output regulator with minimum of 1.5A output cur-
rent capability. This product is specifically designed to
provide well regulated supply for low voltage IC applica-
tions requiring 3.3V output. The IRU1015-33 is guaran-
Guaranteed < 1.3V Dropout at Full Load
Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-in Thermal Shutdown
teed 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.
APPLICATIONS
Standard 3.3V Chipset and Logic Applications
TYPICAL APPLICATION
5V
C1
100uF
Vin
Vout
Gnd
3
2
1
3.3V / 1.5A
IRU1015-33
C2
100uF
1015-33app1-1.0
Typical application of IRU1015-33
Tj (°C)
3-PIN PLASTIC
TO-220 (T)
3-PIN PLASTIC
TO-263 (M)
2-PIN PLASTIC
ULTRA THIN-PAK (P)
3-PIN PLASTIC
TO-252 (D)
0 TO 150
IRU1015-33CT
IRU1015-33CM
IRU1015-33CP
IRU1015-33CD
Rev. 1.0
12/18/00
2-33
IRU1015-33
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V ) ................................................. 7V
in
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) 3-PIN PLASTIC TO-252 ( D )
FRONT VIEW
FRONT VIEW
FRONT VIEW
FRONT VIEW
3
2
1
3
Vin
Vin
3
Vin
3
2
1
Vin
Tab is
Vout
Vout
Gnd
Tab is
Vout
Tab is
Vout
Tab is
Vout
Vout
Gnd
4
1
Gnd
1
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, C =1mF, C =10mF, and T=0 to 150°C. Typical
in
out
j
values refer to T=25°C.
j
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Output Voltage
Vo
Io=10mA, Tj=25°C, V =5V
3.267 3.300 3.330
V
in
Io=10mA, Vin=5V
3.234 3.300 3.366
Line Regulation
Load Regulation (note 1)
Dropout Voltage
(note 2)
Io=10mA, 4.7V<Vin<7V
0.2
0.4
%
%
Vin=5V, Vadj=0, 10mA<Io<1.5A
DVO
Note 2, Io=1.5A
1.1
5
1.3
10
V
A
Current Limit
Vin=5V, dVo=100mV
1.6
60
Minimum Load Current
(note 3)
V =5V
in
mA
Thermal Regulation
Ripple Rejection
30mS Pulse, Vin-Vo=3V, Io=1.5A
f=120HZ, Co=25mF Tan
Io=0.75A, Vin-Vo=3V
0.01
0.02
%/W
70
0.2
dB
mA
%
Adjust Pin Current Change
Temperature Stability
Long Term Stability
Io=10mA, Vin-Vo=1.5V, Tj=25
Vin=5V, Vadj=0V, Io=10mA
Tj=125°C, 1000 Hrs
5
1
0.5
0.3
%
RMS Output Noise
Tj=25°C 10hz<f<10khz
0.003
%Vo
Note 1: Low duty cycle pulse testing with Kelvin con-
nections are required in order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum dif-
Note 3: Minimum load current is defined as the mini-
mum current required at the output in order for the out-
put voltage to maintain regulation. Typically the resistor
dividers are selected such that it automatically main-
tains this current.
ferential voltage between V and V
required to main-
in
out
tain regulation at V . It is measured when the output
out
voltage drops 1% below its nominal value.
Rev. 1.0
12/18/00
2-34
IRU1015-33
PIN DESCRIPTIONS
PIN # PIN SYMBOL
PIN DESCRIPTION
1
Gnd
This pin must be connected to GND plane using a low inductance short connection.
2
V
The output of the regulator. A minimum of 10mF capacitor must be connected
from this pin to ground to insure stability.
out
3
V
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 drop out voltage during the load transient response. This pin must
always be 1.3V higher than Vout in order for the device to regulate properly.
in
BLOCK DIAGRAM
Vin 3
2 Vout
+
+
1.25V
CURRENT
LIMIT
THERMAL
SHUTDOWN
1 Gnd
1015-33blk1-1.0
Figure 1 - Simplified block diagram of the IRU1015-33
APPLICATION INFORMATION
Stability
The IRU1015-33 requires the use of an output capacitor
as part of the frequency compensation in order to make
the regulator stable. Typical designs for microproces-
sor applications use standard electrolytic capacitors with
a typical ESR in the range of 50 to 100mW and an out-
put capacitance of 500 to 1000mF. Fortunately as the
capacitance increases, the ESR decreases resulting in
a fixed RC time constant. The IRU1015-33 takes advan-
tage of this phenomena in making the overall regulator
loop stable. For most applications a minimum of 100mF
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.
Rev. 1.0
12/18/00
2-35
IRU1015-33
Notes
Rev. 1.0
12/18/00
2-36
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