IRU1075CP ,7.5A Adj LDO Linear Regulator in a ULTRA THIN-PAK 3-Leads packageFEATURES DESCRIPTION1V Dropout at Full Load Current The IRU1075 is a low dropout three-terminal adj ..
IRU1075CPTR ,7.5A Adj LDO Linear Regulator in a ULTRA THIN-PAK 3-Leads packageApplications such as:cations. The IRU1075 is guaranteed to have <1.2V drop-P54C
IRU1075CM-IRU1075CMTR-IRU1075CP-IRU1075CPTR-IRU1075CT
7.5A Adj LDO Linear Regulator in a TO-263 3-Leads package
International
OR Rectifier
FEATU RES
IV Dropout at Full Load Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-ln Thermal Shutdown
APPLICATIONS
Low Voltage Processor Applications such as:
P54CTM, P55CTM, Cyrix M2TM,
POWER PCTM , AMD
GTL+ Termination
PENTIUM PROTM , KLAMATH TM
Low Voltage Memory Termination Applications
Standard 3.3V Chip Set and Logic Applications
TYPICAL APPLICATION
5v)h--c-crr-
Data Sheet No. PD94128
IRU1075
7.5A LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
DESCRIPTION
The IRU1075 is a low dropout three-terminal adjustable
regulator with minimum of 7.5A output current capabil-
ity. This product is speaTcally designed to provide well
regulated supply for low voltage IC applications such as
PentiumTM P54CTM, PSSCTM as well as GTL+ termina-
tion for Pentium ProTM and KlamathTM processor appli-
cations. The IRU1075 is also well suited for other pro-
cessors such as CyrixTM, AMD and Power PCTM appli-
cations. The IRU1075 is guaranteed to have <1.2V drop-
out at full load current making it ideal to provide well
regulated outputs such as 3.3V with input supply volt-
age as low as 4.5V minimum.
Notes: Pentium P54C, P550, Klamath, Pentium Pro, VRE are trademarks of Intel Corp. Cyrix M2 is trademark of Cyrix Corp.
150°”FI
IRU1075 Vour E]
VIN EI-
_.'ir,'rii1ir-j.i_-_zxux3s'z3
Typical application of IRU1075 in a 5V to 3.3V regulator.
Power PC is trademark of IBM Corp.
PACKAGE ORDER INFORMATION
Rev. 1.2
08/01/02
T., (°C) 3-PIN PLASTIC 3-PIN PLASTIC 3-PlN PLASTIC
TO-220 (T) T0-263 (M) Ultra Thin-PakTM (P)
0 To 150 |RU1075CT |RU1075CM |RU1075CP
IRU1075
International
TOR Rectifier
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V m) ....................................................
Power Dissipation _....................................................
Storage Temperature Range ......................................
Operating Junction Temperature Range .....................
Internally Limited
-65°C To 150°C
0°C To 150°C
PACKAGE INFORMATION
3-PIN PLASTIC TO-220 (T)
3-PIN PLASTIC TO-263 (M)
3PIN PLASTIC ULTRA THlN-PAKTM (P)
Tab is
2 VOUT
0JT=2.7°CNV 0JA=60°CNV
FRONT VIEW
Tab is
VOUT 2
1 Ad j
6JA=35°CNV for 1" Square pad
FRONT VIEW
3 jVIN
Tab is
VOUT 2 Cl VOUT
1:]Adj
0JA=35°CNV for I" Square pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CIN=1}LF, COUT=10}LF, and To=0 to 150°C.
Typical values refer to TJ=25°C.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Reference Voltage VREF lo=10mA, To=25''C, (VIN-VO)=1.5V 1.238 1.250 1.262 V
lo=10mA, (Vm-Vo)=1.5V 1.225 1.250 1.275
Line Regulation lo=10mA, 1.3V<(VlN-VO)<7V 0.2 %
Load Regulation (Note 1) V|N=3.3V, VADJ=0, 10mA
Dropout Voltage (Note 2) AVo lo=7.5A 1.0 1.2 V
lo=4A 0.92 1.1
Current Limit V|N=3.3V, AVo=100mV 7.6 9 A
Minimum Load Current (Note 3) Vm=3.3V, VADJ=0V 5 10 mA
Thermal Regulation 30ms Pulse, ViN-Vo=3V, |o=7.5A 0.02 %/W
Ripple Rejection f=120Hz, Co=25wF Tantalum,
lo=7.5A, VIN-V0=3V 60 70 dB
Adjust Pin Current IADJ lo=10mA, VlN-V0=1.5V, TJ=25°C,
lo=10mA, VIN-V0=1.5V 55 120 wA
Adjust Pin Current Change lo=10mA, 1hN-Vo=1.5V, TJ=25°C 0.2 5 p.A
Temperature Stability 1hN=3.3V, VADJ=0V, |o=10mA 0.5 %
Long Term Stability TJ=125°C, 1000Hrs 0.3 %
RMS Output Noise TJ=25°C, 10HzNote I: Low duty cycle pulse testing with Kelvin con-
nections is required in order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum dif-
ferential voltage between VIN and VOUT required to main-
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
tains this current.
tain regulation at VOUT. It is measured when the output
voltage drops 1% below its nominal value.
dividers are selected such that it automatically main-
Rev. 1.2
08/01/02
