- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄360972 > IRU1075CP 7.5A Adj LDO Linear Regulator in a ULTRA THIN-PAK 3-Leads package PDF資料下載
參數(shù)資料
| 型號(hào)： | IRU1075CP |
| 英文描述： | 7.5A Adj LDO Linear Regulator in a ULTRA THIN-PAK 3-Leads package |
| 中文描述： | 7.5A的可調(diào)節(jié)LDO線性穩(wěn)壓器在超薄，巴基斯坦3，信息包 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大?。?/td> | 39K |
| 代理商： | IRU1075CP |
IRU1011-33
4
Rev. 1.0
09/06/02
www.irf.com
V
OUT
= 3.3V
V
IN
= 5V
I
OUT
= 1A (DC Avg)
APPLICATION INFORMATION
Introduction
The IRU1011-33 regulator is a 3-terminal device offered
in a fixed output of 3.3V and it is designed specifically to
provide an extremely low dropout voltage.
The IRU1011-33 is 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 number of output capacitors.
Thermal Protection
When the junction temperature exceeds 150
8
C, the in-
ternal thermal protection shuts the IRU1011-33 down.
Current Limit Protection
The IRU1011-33 provides Over Current Protection when
the output current exceeds typically 2A. The output de-
creases to limit the power dissipation.
Stability
The IRU1011-33 requires the use of an output capacitor
as part of the frequency compensation in order to make
the regulator stable. A minimum input capacitance of
4.7
μ
F and a minimum output capacitance 4.7
μ
F Ce-
ramic capacitor is needed for regulator stage as well as
the specified minimum loads to guarantee stability.
Transient Response and PSRR
The input and output capacitors are critical in order to
ensure good transient response and PSRR. The most
important aspects of this are capacitor selection, place-
ment and trace routing. Place each capacitor as close
as physically possible to its corresponding regulator pin.
Use wide traces for a low inductance path. Couple di-
rectly to the ground and power planes as possible. The
use of low ESR capacitors is crucial to achieving good
results. Larger capacitance and lower ESR will improve
both PSRR and transient response.
Thermal Design
The IRU1011-33 incorporates an internal thermal shut-
down that protects the device when the junction tem-
perature exceeds the allowable maximum junction tem-
perature. Although this device can operate with junction
temperatures in the range of 150
8
C, it is recommended
that the selected heat sink be chosen such that during
maximum continuous load operation the junction tem-
perature is kept below this number. The example below
shows the steps in selecting the proper surface mount
package.
Assuming, the following conditions:
Calculate the maximum power dissipation using the fol-
lowing equation:
For MLPM package, we have:
Layout Consideration
The IRU1011-33, like many other high-speed regulators,
requires that the output capacitors be close to the de-
vice for stability. For power consideration, a ground plane
pad of approximately one-inch square on the compo-
nent side must be dedicated to the device where all Gnd
pins are connected to dissipate the power. If a multilayer
board is used, it is recommended that the inner layers of
the board are also dedicated to the size of the pad for
better thermal characteristics.
P
D
= 1
×
(5 - 3.3) = 1.7W
P
D
= I
OUT
×
(V
IN
- V
OUT
)
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
R
THJA
= 32
8
C/W
T
A
= 45
8
C
T = P
D
×
R
THJA
= 1.7
×
32 = 54.4
TJ = T
A
+
T = 99.4
8
C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IRU1075CT | 7.5A Adj LDO Linear Regulator in a TO-220 3-Leads package |
| IRU1117-33CP | 0.8A Fixed LDO Linear Regulator in a ULTRA THIN-PAK 2-Leads package |
| IRU1117-33CS | 0.8A Fixed LDO Linear Regulator in a SOIC 8-Lead package |
| IRU1117-33CY | 0.8A Fixed LDO Linear Regulator in a SOT-223 3-Leads package |
| IRU1261CM | Dual 1A and 6A Fixed LDO Linear Regulator in a TO-263 5-Leads package |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRU1075CPTR | 功能描述:IC CONV PENTIUM P55C 3-UTHINPAK RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| IRU1075CT | 功能描述:IC CONV PENTIUM P55C TO220-3 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| IRU1117 | 制造商:IRF 制造商全稱(chēng):International Rectifier 功能描述:800mA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| IRU1117-18 | 制造商:IRF 制造商全稱(chēng):International Rectifier 功能描述:800mA LOW DROPOUT POSITIVE FIXED 1.8V REGULATOR |
| IRU1117-18CD | 功能描述:IC REG LDO 1.8V .8A TO-252 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）: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(lèi)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(chēng):LP2985AIBP-4.0DKR |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。