iru1261 International Rectifier Corp., iru1261 Datasheet - Page 2

• Manufacturer Part Number: iru1261
• Description: Dual 6a And 1a Low Dropout Positive Fixed 1.5v And 2.5v Regulator
• Manufacturer: International Rectifier Corp.

IRU1261
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V
Power Dissipation ..................................................... Internally Limited
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range .....................
PACKAGE INFORMATION
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over C
values refer to T
PARAMETER
V
Output Voltage #2
Output Voltage #1
Line Regulation
Load Regulation (Note 1)
Dropout Voltage (Output #2)
Dropout Voltage (Output #1)
Current Limit (Output #2)
Current Limit (Output #1)
Minimum Load Current
Thermal Regulation
Ripple Rejection
Temperature Stability
Long Term Stability
RMS Output Noise
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 voltage between V
tain regulation at V
voltage drops 1% below its nominal value.
2
CTRL
5-PIN PLASTIC TO-263 (M)
Input Voltage
JA
=308C/W for 1"sq pad
J
IN
=258C. I
) .................................................... 7V
5
4
3
2
1
OUT
. It is measured when the output
FL
V
V
Gnd
V
V
OUT
IN
OUT
CTRL
=6A for output #2 and 1A for output #1. V
IN
1
2
and V
OUT
SYM
V
V
O2
O1
required to main-
5-PIN ULTRA THIN-PAK
Io=10mA, T
Io=10mA
Io=10mA, T
Io=10mA
Io=10mA, 3.1V<V
10mA<Io<I
Note 2, Io=6A, V
Note 2, Io=1A, V
DVo=100mV
DVo=100mV
Note 3
30ms Pulse, Io=I
f=120Hz, Co=25mF Tantalum,
Io=0.5 3 I
Io=10mA
T
10Hz<f<10KHz
J
=1258C, 1000Hrs
JA
=308C/W for 1"sq pad
TEST CONDITION
www.irf.com
FL
FL
J
J
=25 C
=25 C
0°C To 150°C
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.
5
4
3
2
1
CTRL
CTRL
FL
IN
<3.6V
V
V
Gnd
V
V
=4.75V
=4.75V
IN
OUT
IN
OUT
CTRL
=1mF, C
TM
1
2
CTRL
(P)
=5V, V
OUT
=100mF and T
IN
=3.3V.
1.485
1.470
2.462
2.425
MIN
3.0
6.1
1.1
1.500
1.500
2.500
2.500
0.003
TYP
0.01
0.2
0.4
0.4
0.5
0.3
70
J
5
=0 to 1508C. Typical
1.515
1.530
2.537
2.575
MAX
0.02
1.3
0.6
10
UNITS
09/19/02
Rev. 2.0
%/W
%V
mA
dB
%
%
%
%
V
V
V
V
V
A
A
O