參數(shù)資料
型號(hào)： MIC5191
廠商： Micrel Semiconductor,Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Ultra High-Speed, High-Current Active Filter/LDO Controller
中文描述： 超高速，高電流有源濾波器/ LDO控制器
文件頁(yè)數(shù)： 1/13頁(yè)
文件大小： 182K
代理商： MIC5191
April 2004
1
M9999-042804
MIC5191
Micrel
MIC5191
Ultra High-Speed, High-Current Active Filter/LDO Controller
General Description
The MIC5191 is an ultra high-speed linear regulator. It uses
an external N-Channel FET as its power device.
The MIC5191's ultra high-speed abilities can handle the fast
load demands of microprocessor cores, ASICs, and other
high-speed devices. Signal bandwidths of greater than 500kHz
can be achieved with a minimum amount of capacitance
while at the same time keeping the output voltage clean,
regardless of load demand. A powerful output driver delivers
large MOSFETs into their linear regions, achieving ultra-low
dropout voltage.
1.25V
IN
±
10% can be turned into 1V
±
1% without the use of
a large amount of capacitance.
MIC5191 (1.0V reference) is optimized for output voltages of
1.0V and higher.
The MIC5191 is offered in 10-lead 3mm
×
3mm MLF and
10-lead MSOP-10 packages and has an operating junction
temperature range of –40
°
C to +125
°
C.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
Typical Application
Features
Input voltage range:
V
IN
= 1.0V to 5.5V
+1.0% initial output tolerance
Dropout down to 25mV@10A
Filters out switching frequency noise on input
Very high large signal bandwidth >500kHz
PSRR >40dB at 500kHz
Adjustable output voltage down to 1.0V
Stable with any output capacitor
Excellent line and load regulation specifications
Logic controlled shutdown
Current limit protection
10-lead MLF and MSOP-10 packages
Available –40
°
C to +125
°
C junction temperature
Applications
Distributed power supplies
ASIC power supplies
DSP,
μ
P, and
μ
C power supplies
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
VIN
SGND
PGND
IS
IR3716S
OUT
VCC1
C3
0.01
μ
F
C2
10
μ
F
FB
GND
V
OUT
=1.0V@7A
GND
VCC2
EN
COMP
MIC5191
R3
12.5k
C1
0.01
μ
F
V
IN
=
1.2V
V
CC
=
12V
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icroLead
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rame
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MIC5191_06 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Ultra High-Speed, High-Current Active Filter / LDO Controller
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MIC5191BML 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Ultra High-Speed, High-Current Active Filter/LDO Controller
MIC5191BML TR 功能描述:IC REG CTRLR SGL POS ADJ 10-MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性晶體管驅(qū)動(dòng)器 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:正，固定式 輸出數(shù):2 輸出電壓:2.8V，3.3V 電流 - 電源:12mA 輸入電壓:5 V ~ 22 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
MIC5191BMM 功能描述:IC REG CTRLR SGL POS ADJ 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性晶體管驅(qū)動(dòng)器 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:正，固定式 輸出數(shù):2 輸出電壓:2.8V，3.3V 電流 - 電源:12mA 輸入電壓:5 V ~ 22 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
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