OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

IRU1150CMTR

P1-P3P4-P6P7-P9
IRU1150(PbF)
1
www.irf.com
4A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
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.
DESCRIPTION
0.7V Dropout at 4A
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
APPLICATIONS
FEATURES
3.3V to 2.7V Intel I740 Chip Set
TYPICAL APPLICATION
Data Sheet No. PD94129 revA
Figure 1 - Typical application of IRU1150 in a 3.3V to 2.7V for I740 chip.
3.3V
IRU1150
2.7V
C1
100uF
C3
100uF
5V
C2
100uF
R1
102
R2
118
1
2
3
4
5
V
SENSE
Adj
V
OUT
V
CTRL
V
IN
PACKAGE ORDER INFORMATION
TJ (°C) 5-PIN PLASTIC 5-PIN PLASTIC 8-PIN PLASTIC
TO-263 (M) Ultra Thin-Pak
TM
(P) SOIC (S)
0 To 125 IRU1150CM IRU1150CP IRU1150CS
Leadfree Part
Basic Part (Non-Lead Free)
TJ (°C) 5-PIN PLASTIC 5-PIN PLASTIC 8-PIN PLASTIC
TO-263 (M) Ultra Thin-Pak
TM
(P) SOIC (S)
0 To 125 Not available Not available IRU1150CSPbF
2
IRU1150(PbF)
www.irf.com
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VIN) .................................................... 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 THIN-PAK
TM
(P) 8-PIN PLASTIC SOIC (S)
θJA=35°C/W for 0.5" square pad θJA=35°C/W for 0.5" square pad θJA=55°C/W for 1" Sq pad area
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CIN=1µF, COUT=10µF, and TJ=0 to 125C.
Typical values refer to TJ=25C. VOUT=VSENSE.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
V
SENSE
Adj
V
IN
V
CTRL
V
OUT
4
3
2
1
5
6
7
8
TOP VIEW
V
OUT
V
OUT
V
OUT
V
SENSE
Adj
V
OUT
V
CTRL
V
IN
FRONT VIEW
1
2
3
4
5
Tab is
VOUT
V
SENSE
Adj
V
OUT
V
CTRL
V
IN
FRONT VIEW
1
2
3
4
5
Tab is
VOUT
Reference Voltage
Line Regulation
Load Regulation (Note 1)
Dropout Voltage (Note 2)
(VCTRL - VOUT)
Dropout Voltage (Note 2)
(VIN - VOUT)
Current Limit
Minimum Load Current (Note 3)
Thermal Regulation
Ripple Rejection
Control Pin Current
Adjust Pin Current
VCTRL=2.7 to 12V, VIN=2.05V to 5.5V,
Io=10mA to 4A, VADJ=0V
VCTRL=2.5V to 7V, VIN=1.75V to 5.5V,
Io=10mA, VADJ=0V
VCTRL=2.75V, VIN=2.1V,
Io=10mA to 4A, VADJ=0V
VADJ=0V for all conditions below:
VIN=2.05V, Io=1.5A
VIN=2.05V, Io=3A
VIN=2.05V, Io=4A
VADJ=0V for all conditions below:
VCTRL=2.75V, Io=1.5A
VCTRL=2.75V, Io=3A
VCTRL=2.75V, Io=4A
VCTRL=2.75V, VIN=2.05V,
∆Vo=100mV, VADJ=0V
VCTRL=5V, VIN=3.3V, VADJ=0V
30ms Pulse
VCTRL=5V, VIN=5V, Io=4A, VADJ=0V,
TJ=25C, VRIPPLE=1VPP at 120Hz
VADJ=0V for all below conditions:
VCTRL=2.75V, VIN=2.05V, Io=1.5A
VCTRL=2.75V, VIN=2.05V, Io=3A
VCTRL=2.75V, VIN=2.05V, Io=4A
VCTRL=2.75V, VIN=2.05V, VADJ=0V
1.225
-5
-5
4.2
1.250
-0.2
3
1.00
1.05
1.13
0.26
0.50
0.70
4.65
1
0.01
70
16
36
67
50
1.275
+5
+5
1.15
1.15
1.20
0.38
0.60
1.15
6
10
25
50
85
V
mV
mV
V
V
A
mA
%/W
dB
mA
µA
VREF
IADJ
IRU1150(PbF)
3
www.irf.com
This pin is the positive side of the reference which allows remote load sensing to achieve
excellent load regulation.
A resistor divider from this pin to the VOUT pin and ground sets the output voltage.
The output of the regulator. A minimum of 10µF capacitor must be connected from this
pin to ground to insure stability.
This pin is the supply pin for the internal control circuitry as well as the base drive for the
pass transistor. This pin must always be higher than the VOUT pin in order for the device to
regulate. (See specifications)
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 higher than VOUT in
order for the device to regulate. (See specifications)
Note 1: 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 between VIN and VOUT required to maintain regu-
lation at VOUT. It is measured when the output voltage
drops 1% below its nominal value.
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.
PIN # PIN SYMBOL PIN DESCRIPTION
PIN DESCRIPTIONS
1
2
3
4
5
VSENSE
Adj
VOUT
VCTRL
VIN
BLOCK DIAGRAM
Figure 2 - Simplified block diagram of the IRU1150.
V
CTRL
V
IN
V
SENSE
Adj
V
OUT
THERMAL
SHUTDOWN
CURRENT
LIMIT
1.25V
+
+
5
4
3
1
2
P1-P3P4-P6P7-P9

IRU1150CMTR

Mfr. #:
Buy IRU1150CMTR
Manufacturer:
Infineon Technologies
Description:
IC REG LINEAR POS ADJ 4A TO263-5
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet