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IRU1160CMIRN/a15928avai6A Adj LDO Linear Regulator in a TO-263 5-Leads package
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IRU1160CM-IRU1160CPTR
6A Adj LDO Linear Regulator in a ULTRA THIN-PAK 5-Leads package
International
TOR Rectifier
Data Sheet No. PD94130
IRU1160
6A ULTRA LOW DROPOUT POSITIVE
FEATU RES
0.62V Dropout at 6A
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-ln Thermal Shutdown
APPLICATIONS
El VGA Card Applications
El On-Board Low Voltage Regulator Supply such
as 3.3V to 2.8V
ADJUSTABLE REGULATOR
DESCRIPTION
The IRU1160 is a 6A regulator with extremely low drop-
out voltage using a proprietary bipolar process that
achieves comparable equivalent on resistance to that of
discrete MOSFETs. This product is spetyTcally designed
to provide well regulated supply for applications requir-
ing 2.8V or lower voltages from 3.3V ATX power supplies
where high efficiency of a switcher can be achieved with-
out the cost and complexity associated with switching
regulators.
TYPICAL APPLICATION
3.3V fl
1OQJF:|_:
VCTRL E)-
IRU1160 Vour E ' R1 " pr 2.7V
Adj El "d L,
\/SENSE T- 'ff, 1:1”
5V >—i'+ T =
Figure 1 - Typical application of IRU1160 in a 3.3V to 2.8V.
PACKAGE ORDER INFORMATION
To (°C) 5-PIN PLASTIC 5-PIN PLASTIC
TO-263 (M) Ultra Thin-PakTM (P)
0 To 125 IRU1160CM IRU1160CP
Rev. 1.4 1
08/20/02
International
TOR Rectifier
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V IN) .................................................... 7V
Control Input Voltage (VCTRL) ..................................... 14V
Power Dissipation _.................................................... Internally Limited
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 150°C
PACKAGE INFORMATION
5-PIN PLASTIC TO-263 (M) 5-PIN PLASTIC ULTRA THlN-PAKTM (P)
FRONTVIEW
VIN 5 Cl VlN
VCTRL . 4 TI VCTRL
65;: VOUT :00: 3 TI VOUT
Adj 2 :1 Adj
VSENSE 1 Cl VSENSE
0JA=35°CIW for 0.5" square pad 9JA=35°CIW for 0.5" square pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CIN=}LF, COUT=10}LF, and Teo to 125°C.
Typical values refer to TJ=25°C. VOUT=VSENSE.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Reference Voltage VREF VCTRL=2.75, Vm=2v, lo=10mA,
TJ=25°C, VADJ=0V 1.225 1.250 1.275 V
VCTRL=2.7 to 12V, V|N=2.05V to 5.5V,
lo=10mA to 6A, VADJ=0V 1.225 1.250 1.275
Line Regulation VCTRL=2.5V to 7V, Vm=1 .75V to 5.5V,
lo=10mA, VADJ=OV 3 mV
Load Regulation (Note 1) Vcrmr-2.75V, Vm=2.1V,
lo=10mA to 6A, VADJ=0V 6 mV
Dropout Voltage (Note 2) VADJ=0V for all conditions below:
(VCTRL - VOUT) VIN=2.05V, lo=1.5A 1.00 V
V|N=2.05V, lo=5A 1.10
V|N=2.05V, lo=6A 1.20 1.30
Dropout Voltage (Note 2) VADJ=0V for all conditions below:
Niro - Vow) VCTRL=2.75V, lo=1.5A 0.15 0.20 V
VCTRL=2.75V, lo---5A 0.40 0.52
VCTRL=2.75V, lo=6A 0.55 0.62
Current Limit Vcrmr-2.75V, Vm=2.05V,
AVo=100mV, VADJ=0V 6.2 A
Minimum Load Current (Note 3) VCTRL=5V, Vm=3.3V, VADJ=0V 5 10 mA
Thermal Regulation 30ms Pulse 0.01 0.02 %/W
Ripple Rejection VCTRL=5V, VIN=5V, lo=5A, VADJ=0V,
TJ=25°C, VRlPPLE=1VPP at 120Hz 60 70 dB
2 Rev. 1.4
08/20/02
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