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International Rectifier Electronic Components Datasheet

IRU1117-18PBF Datasheet

800mA LOW DROPOUT POSITIVE FIXED 1.8V REGULATOR

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Data Sheet No. PD94137 revA
IRU1117-18(PbF)
FEATURES
Guaranteed < 1.2V Dropout at 800mA Load
Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
Available in SOT-223, D-Pak, Ultra Thin-PakTM
and 8-Pin SOIC Surface-Mount Packages
APPLICATIONS
Low Voltage IC Supply Applications
PC Clock Supply Voltage
800mA LOW DROPOUT POSITIVE
FIXED 1.8V REGULATOR
DESCRIPTION
The IRU1117-18 is a low dropout three-terminal fixed out-
put regulator with minimum of 800mA output current ca-
pability. This product is specifically designed to provide
well regulated supply for low voltage IC applications as
well as generating clock supply for PC applications. The
IRU1117-18 is guaranteed to have <1.2V dropout at full
load current making it ideal to provide well regulated with
3.8V input supply. The IRU1117-18 is specifically de-
signed to be stable with low cost aluminum capacitors
while maintaining stability with low ESR tantalum caps.
TYPICAL APPLICATION
3.3V
C1
10uF
VIN 3
IRU1117-18
VOUT 2
Gnd 1
1.8V / 800mA
C2
10uF
Figure 1 - Typical set-up of the IRU1117-18 in a 3.3V to 1.8V regulator application.
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 125
Basic Part (Non-Lead Free)
2-PIN PLASTIC
TO-252 (D-Pak)
IRU1117-18CD
2-PIN PLASTIC 8-PIN PLASTIC
Ultra Thin-PakTM (P)
SOIC (S)
IRU1117-18CP
IRU1117-18CS
3-PIN PLASTIC
SOT-223 (Y)
IRU1117-18CY
TJ (°C)
0 To 125
2-PIN PLASTIC
TO-252 (D-Pak)
Not available
Leadfree Part
2-PIN PLASTIC 8-PIN PLASTIC 3-PIN PLASTIC
Ultra Thin-PakTM (P)
SOIC (S)
SOT-223 (Y)
Not available IRU1117-18CSPbF Not available
www.irf.com
1


International Rectifier Electronic Components Datasheet

IRU1117-18PBF Datasheet

800mA LOW DROPOUT POSITIVE FIXED 1.8V REGULATOR

No Preview Available !

IRU1117-18(PbF)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VIN) ....................................................
Power Dissipation .....................................................
Storage Temperature Range ......................................
Operating Junction Temperature Range .....................
7V
Internally Limited
-65°C To 150°C
0°C To 125°C
PACKAGE INFORMATION
2-PIN PLASTIC TO-252 (D-Pak) 2-PIN ULTRA THIN-PAKTM (P)
8-PIN PLASTIC SOIC (S)
Tab is
VOUT
3 VIN
Tab is
VOUT
1 Gnd
3 VIN
1 Gnd
θJA=70°C/W for 0.5" Sq pad
θJA=70°C/W for 0.5" Sq pad
VIN 1
NC 2
NC 3
Gnd 4
8 VOUT
7 VOUT
6 VOUT
5 VOUT
θJA=55°C/W for 1" Sq pad
3-PIN PLASTIC SOT-223 (Y)
Tab is
VOUT
3 VIN
2 VOUT
1 Gnd
θJA=90°C/W for 0.4" Sq pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CIN=1µF, VIN=5V, COUT=10µF, and TJ=0 to 125 C.
Typical values refer to TJ=25 C.
PARAMETER
Output Voltage
Line Regulation
Load Regulation (Note 1)
Dropout Voltage (Note 2)
Current Limit
Thermal Regulation
Ripple Rejection
Temperature Stability
Long Term Stability
RMS Output Noise
SYM
VO
TEST CONDITION
Io=10mA, TJ=25 C
Io=10mA
Io=10mA, 4.75V<VIN<7V
10mA<Io<800mA
Io=1A
Io=800mA
Vo=100mV
30ms Pulse, Io=800mA
f=120Hz, Co=25µF Tantalum,
Io=0.5A
Io=10mA
TJ=125 C, 1000Hrs
TJ=25 C, 10Hz<f<10KHz
MIN
1.782
1.764
1.1
TYP
1.800
1.800
1.2
1.1
0.01
MAX
1.818
1.896
7
17
1.3
1.2
UNITS
V
mV
mV
V
A
%/W
70
0.5
0.3
0.003
dB
%
%
%VO
Note 1: 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 VOUT required to maintain
regulation at VOUT. It is measured when the output voltage drops 1% below its nominal value.
2 www.irf.com


Part Number IRU1117-18PBF
Description 800mA LOW DROPOUT POSITIVE FIXED 1.8V REGULATOR
Maker International Rectifier
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International Rectifier





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