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IRU1010 の電気的特性と機能

IRU1010のメーカーはInternational Rectifierです、この部品の機能は「1A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 IRU1010
部品説明 1A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IRU1010 Datasheet, IRU1010 PDF,ピン配置, 機能
Data Sheet No. PD94119 revA
IRU1010(PbF)
FEATURES
Guaranteed < 1.3V Dropout at Full Load Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
Available in SOT-223, D-Pak, Ultra Thin-PakTM
and 8-Pin SOIC Surface-Mount Packages
APPLICATIONS
VGA & Sound Card Applications
Low Voltage High Speed Termination Applications
Standard 3.3V Chip Set and Logic Applications
1A LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
DESCRIPTION
The IRU1010 is a low dropout, three-terminal adjustable
regulator with minimum of 1A output current capability.
This product is specifically designed to provide well regu-
lated supply for low voltage IC applications such as high
speed bus termination and low current 3.3V logic sup-
ply. The IRU1010 is also well suited for other applica-
tions such as VGA and sound cards. The IRU1010 is
guaranteed to have <1.3V dropout at full load current
making it ideal to provide well regulated outputs of 2.5V
to 3.6V with 4.75V to 7V input supply.
TYPICAL APPLICATION
D1
5V
C1
10uF
VIN 3
IRU1010
VOUT 2
Adj 1
2.85V / 1A
R1
121
C2
R2 22uF
154
Figure 1 - Typical application of IRU1010 in a 5V to 2.85V SCSI termination regulator.
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 150
TJ (°C)
0 To 150
2-PIN PLASTIC
TO-252 (D-Pak)
IRU1010CD
2-PIN PLASTIC
TO-252 (D-Pak)
Not available
Basic Part (Non-Lead Free)
2-PIN PLASTIC
Ultra Thin-PakTM (P)
IRU1010CP
8-PIN PLASTIC
SOIC (S)
IRU1010CS
Leadfree Part
2-PIN PLASTIC
Ultra Thin-PakTM (P)
Not available
8-PIN PLASTIC
SOIC (S)
IRU1010CSPbF
3-PIN PLASTIC
SOT-223 (Y)
IRU1010CY
3-PIN PLASTIC
SOT-223 (Y)
Not available
Rev. 1.7
www.irf.com
1

1 Page





IRU1010 pdf, ピン配列
IRU1010(PbF)
PIN DESCRIPTIONS
PIN # PIN SYMBOL PIN DESCRIPTION
1 Adj A resistor divider from this pin to the VOUT pin and ground sets the output voltage.
2
VOUT
The output of the regulator. A minimum of 10µF capacitor must be connected from this pin
to ground to insure stability.
3 VIN 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 dropout
voltage during the load transient response. This pin must always be 1.3V higher than VOUT
in order for the device to regulate properly.
BLOCK DIAGRAM
VIN 3
2 VOUT
+
CURRENT
LIMIT
THERMAL
SHUTDOWN
1.25V +
1 Adj
Figure 2 - Simplified block diagram of the IRU1010.
APPLICATION INFORMATION
Introduction
The IRU1010 adjustable Low Dropout (LDO) regulator is
a three-terminal device which can easily be programmed
with the addition of two external resistors to any volt-
ages within the range of 1.25 to 5.5V. This regulator,
unlike the first generation of the three-terminal regula-
tors such as LM117 that required 3V differential between
the input and the regulated output, only needs 1.3V dif-
ferential to maintain output regulation. This is a key re-
quirement for today’s low voltage IC applications that
typically need 3.3V supply and are often generated from
the 5V supply. Other applications such as high speed
memory termination need to switch the load current from
zero to full load in tens of nanoseconds at their pins,
which translates to an approximately 300 to 500ns cur-
rent step at the regulator. In addition, the output voltage
tolerances are sometimes tight and they include the tran-
sient response as part of the specification.
The IRU1010 is specifically designed to meet the fast
current transient needs as well as providing an accurate
initial voltage, reducing the overall system cost with the
need for fewer output capacitors.
Rev. 1.7
www.irf.com
3


3Pages


IRU1010 電子部品, 半導体
IRU1010(PbF)
(D) TO-252 Package
2-Pin
A
CB
D
E
45
J
7
K
L
M
N
O
QP
FG
H
CL
R1
RS
SYMBOL
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
R1
S
MIN MAX
6.477 6.731
5.004 5.207
0.686 0.838
7.417 8.179
9.703 10.084
0.635 0.889
2.286 BSC
4.521 4.623
1.52 1.62
2.184 2.388
0.762 0.864
1.016 1.118
5.969 6.223
1.016 1.118
0 0.102
0.534 0.686
R0.31 TYP
R0.51 TYP
0.428 0.588
NOTE: ALL MEASUREMENTS
ARE IN MILLIMETERS.
6 www.irf.com
Rev. 1.7

6 Page



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共有リンク

Link :


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