DataSheet.jp

IRU1075 の電気的特性と機能

IRU1075のメーカーはInternational Rectifierです、この部品の機能は「7.5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 IRU1075
部品説明 7.5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




このページの下部にプレビューとIRU1075ダウンロード(pdfファイル)リンクがあります。

Total 6 pages

No Preview Available !

IRU1075 Datasheet, IRU1075 PDF,ピン配置, 機能
www.DataSheet4U.com
FEATURES
1V Dropout at Full Load Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-In Thermal Shutdown
APPLICATIONS
Low Voltage Processor Applications such as:
P54C,P55C, Cyrix M2,
POWER PC, AMD
GTL+ Termination
PENTIUM PRO, KLAMATH
Low Voltage Memory Termination Applications
Standard 3.3V Chip Set and Logic Applications
TYPICAL APPLICATION
Data Sheet No. PD94128
IRU1075
7.5A LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
DESCRIPTION
The IRU1075 is a low dropout three-terminal adjustable
regulator with minimum of 7.5A output current capabil-
ity. This product is specifically designed to provide well
regulated supply for low voltage IC applications such as
PentiumP54C, P55Cas well as GTL+ termina-
tion for Pentium Proand Klamathprocessor appli-
cations. The IRU1075 is also well suited for other pro-
cessors such as Cyrix, AMD and Power PCappli-
cations. The IRU1075 is guaranteed to have <1.2V drop-
out at full load current making it ideal to provide well
regulated outputs such as 3.3V with input supply volt-
age as low as 4.5V minimum.
5V
C1
1500uF
Vin 3
1075app1-1.0
IRU1075 Vout 2
Adj 1
3.3V
R1
121
C2
R2 2x 1500uF
200
Typical application of IRU1075 in a 5V to 3.3V regulator
Notes: Pentium P54C, P55C, Klamath, Pentium Pro, VRE are trademarks of Intel Corp. Cyrix M2 is trademark of Cyrix Corp.
Power PC is trademark of IBM Corp.
PACKAGE ORDER INFORMATION
Tj (°C)
0 To 150
3-PIN PLASTIC
TO-220 (T)
IRU1075CT
3-PIN PLASTIC
TO-263 (M)
IRU1075CM
3-PIN PLASTIC
Ultra Thin-Pak (P)
IRU1075CP
Rev. 1.1
06/29/01
1

1 Page





IRU1075 pdf, ピン配列
IRU1075
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 drop out
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
1.25V +
THERMAL
SHUTDOWN
1075blk1-1.0
1 Adj
Figure 2 - Simplified block diagram of the IRU1075
APPLICATION INFORMATION
Introduction
The IRU1075 adjustable Low Dropout (LDO) regulator
is a three-terminal device which can easily be pro-
grammed with the addition of two external resistors to
any voltages within the range of 1.25 to 5.5 V. This regu-
lator unlike the first generation of the three-terminal regu-
lators such as LM117 that required 3V differential be-
tween the input and the regulated output, only needs
1.3V differential to maintain output regulation. This is a
key requirement for today’s microprocessors that need
typically 3.3V supply and are often generated from the
5V supply. Another major requirement of these micro-
processors such as the Intel P54Cis the need to switch
the load current from zero to several amps in tens of
nanoseconds at the processor pins, which translates to
an approximately 300 to 500ns current step at the regu-
lator. In addition, the output voltage tolerances are also
extremely tight and they include the transient response
as part of the specification. For example Intel VRE
specification calls for a total of ±100mV including initial
tolerance, load regulation and 0 to 4.6A load step.
The IRU1075 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. 1.1
06/29/01
3


3Pages


IRU1075 電子部品, 半導体
IRU1075
Notes
IR WORLD HEADQUARTERS : 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 02/01
6 Rev. 1.1
06/29/01

6 Page



ページ 合計 : 6 ページ
 
PDF
ダウンロード
[ IRU1075 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
IRU1075

7.5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR

International Rectifier
International Rectifier


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap