IRU1150 Ver la hoja de datos (PDF) - International Rectifier
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IRU1150 Datasheet PDF : 9 Pages
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Data Sheet No. PD94129revA
IRU1150(PbF)
FEATURES
0.7V Dropout at 4A
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
APPLICATIONS
3.3V to 2.7V Intel I740 Chip Set
4A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
DESCRIPTION
The IRU1150 is a 4A 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 specifically 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. One such application is the new graphic chip
sets that require anywhere from 2.4V to 2.7V supply
such as the Intel I740 chip set.
TYPICAL APPLICATION
3.3V
C1
100uF
VIN 5
IRU1150
VCTRL 4
VOUT 3
Adj 2
VSENSE 1
2.7V
R1
102
C3
R2
100uF
118
5V
C2
100uF
Figure 1 - Typical application of IRU1150 in a 3.3V to 2.7V for I740 chip.
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 125
Basic Part (Non-Lead Free)
5-PIN PLASTIC
TO-263 (M)
IRU1150CM
5-PIN PLASTIC
Ultra Thin-PakTM (P)
IRU1150CP
8-PIN PLASTIC
SOIC (S)
IRU1150CS
TJ (°C)
0 To 125
Leadfree Part
5-PIN PLASTIC
TO-263 (M)
Not available
5-PIN PLASTIC 8-PIN PLASTIC
Ultra Thin-PakTM (P)
SOIC (S)
Not available IRU1150CSPbF
Rev. 1.8
www.irf.com
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