- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377539 > IRU1030CM (International Rectifier) 3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR PDF資料下載
參數(shù)資料
| 型號： | IRU1030CM |
| 廠商： | International Rectifier |
| 英文描述： | 3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| 中文描述： | 第3A低壓差型正，可調(diào)式穩(wěn)壓器 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 70K |
| 代理商： | IRU1030CM |
IRU1030
3
Rev. 1.3
08/20/02
www.irf.com
APPLICATION INFORMATION
Introduction
The IRU1030 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 un-
like the first generation of the three-terminal regulators
such as LM117 that required 3V differential between the
input and the regulated output, only needs 1.3V differen-
tial to maintain output regulation. This is a key require-
ment for today’s microprocessors that need typically
3.3V supply and are often generated from the 5V sup-
ply. Another major requirement of these microproces-
sors such as the Intel P54C
is the need to switch the
load current from zero to several amps in tens of nano-
seconds at the processor pins, which translates to an
approximately 300 to 500ns current step at the regula-
tor. 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 IRU1030 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.
BLOCK DIAGRAM
Figure 2 - Simplified block diagram of the IRU1030.
PIN DESCRIPTIONS
PIN # PIN SYMBOL
1
PIN DESCRIPTION
A resistor divider from V
OUT
to Adj pin to ground sets the output voltage.
The output of the regulator. A minimum of 10
μ
F capacitor must be connected from this pin
to ground to insure stability.
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 V
OUT
in order for the device to regulate properly.
2
3
Adj
V
OUT
V
IN
V
IN
3
1
Adj
2 V
OUT
THERMAL
SHUTDOWN
CURRENT
LIMIT
1.25V
+
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IRU1030CT | 3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| IRU1030-33 | 3A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR |
| IRU1030-33CD | 3A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR(77.15 k) |
| IRU1030-33CM | VOLT REGULATOR|FIXED|+3.3V|BIPOLAR|SIP|3PIN|PLASTIC |
| IRU1030-33CT | VOLT REGULATOR|FIXED|+3.3V|BIPOLAR|SIP|3PIN|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRU1030CMTR | 功能描述:IC REG LDO ADJ 3A TO-263-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應(yīng)商設(shè)備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| IRU1030CT | 功能描述:IC REG LDO ADJ 3A TO-220 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應(yīng)商設(shè)備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| IRU1050 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| IRU1050-33 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:5A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR |
| IRU1050-33CD | 功能描述:IC REG LDO 3.3V 5A D-PAK RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應(yīng)商設(shè)備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。