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參數資料
| 型號： | MIC49200-1.8WR |
| 廠商： | MICREL INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 2A LOW VOLTAGE LDO WITH DUAL INPUT VOLTAGES |
| 中文描述： | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.625 V DROPOUT, PSSO5 |
| 封裝： | ROHS COMPLIANT, S-5 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 333K |
| 代理商： | MIC49200-1.8WR |
MIC49200
2A Low Voltage LDO
with Dual Input Voltages
General Description
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
January 2006
M9999-011306
(408) 955-1690
The MIC49200 is a high-bandwidth, low-dropout, 2A
voltage regulator ideal for powering core voltages of low-
power microprocessors. The MIC49200 implements a
dual supply con
fi
guration allowing for very low output
impedance and very fast transient response.
The MIC49200 requires a bias input supply and a main
input supply, allowing for ultra-low input voltages on the
main supply rail. The input supply operates from 1.4V to
6.5V and the bias supply requires between 3V and 6.5V
for proper operation. The MIC49200 offers
fi
xed output
voltages from 0.9V to 1.8V and adjustable output voltages
down to 0.9V.
The MIC49200 requires a minimum of output capacitance
for stability, working optimally with small ceramic
capacitors.
The MIC49200 is available in a 5-pin S-Pak. Its operating
temperature range is –40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Input Voltage Range:
V
IN
: 1.4V to 6.5V
V
BIAS
: 3.0V to 6.5V
Stable with 1μF ceramic output capacitors
±1% initial tolerance
Maximum dropout voltage (V
IN
–V
OUT
) of 500mV
over temperature
Adjustable output voltage down to 0.9V
Ultra fast transient response (Up to 10MHz
bandwidth)
Excellent line and load regulation speci
fi
cations
Logic controlled shutdown option
Thermal shutdown and current limit protection
Junction temperature range: –40°C to 125°C
Applications
Set-top box
Graphics processors
PC add-in cards
Microprocessor core voltage supply
Low voltage digital ICs
High efficiency linear power supplies
SMPS post regulators
Typical Application
Low Voltage, Fast Transient Response Regulator
Load Transient
O
(
O
(
Time (40μs/div)
V
IN
= 2.8V
V
OUT
= 1.8V
V
BIAS
= 4V
C
OUT
= 1μF
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC49200WR | 功能描述:低壓差穩壓器 - LDO 2A LDO, Low Vin, Low Vout, Fast transient response, ucap stable RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC49200WR TR | 功能描述:低壓差穩壓器 - LDO 2A LDO, Low Vin, Low Vout, Fast transient response, ucap stable RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC49300 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.0A LOW VOLTAGE LDO REGULATOR W/DUAL INPUT VOLTAGES |
| MIC49300_05 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.0A Low Voltage LDO Regulator w/Dual Input Voltages |
| MIC49300-0.9BR | 功能描述:IC REG LDO 0.9V 3A SPAK-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.3V @ 80mA 穩壓器數量:1 電流 - 輸出:80mA 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:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
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