IRU1150CPTR International Rectifier, IRU1150CPTR Datasheet - Page 3

• Manufacturer Part Number: IRU1150CPTR
• Description: IC REG ADJ VLDO 4.0A 5-UTHINPAK
• Manufacturer: International Rectifier

Specifications of IRU1150CPTR

• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.25 ~ 5.5 V
• Voltage - Input: Up to 7V
• Voltage - Dropout (typical): 0.7V @ 4A
• Number Of Regulators: 1
• Current - Output: 4A
• Current - Limit (min): 4.2A
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 5-Ultra Thin-Pak
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: IRU1150-CPTR; IRU1150-CPTR

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 V
lation at V
drops 1% below its nominal value.
PIN DESCRIPTIONS
PIN #
BLOCK DIAGRAM
1
2
3
4
5
V
CTRL
V
PIN SYMBOL
IN
OUT
V
V
5
4
V
. It is measured when the output voltage
SENSE
Adj
V
CTRL
OUT
IN
IN
SHUTDOWN
THERMAL
and V
CURRENT
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 V
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 V
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 V
order for the device to regulate. (See specifications)
LIMIT
PIN DESCRIPTION
OUT
required to maintain regu-
Figure 2 - Simplified block diagram of the IRU1150.
+
www.irf.com
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.
OUT
pin and ground sets the output voltage.
1.25V
OUT
pin in order for the device to
IRU1150(PbF)
+
3
1
2
V
V
Adj
OUT
SENSE
OUT
3
in