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參數(shù)資料
| 型號： | MIC38300 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 3A SuperLNR⑩ Low Noise High Efficiency Regulator |
| 中文描述： | 第3A SuperLNR⑩低噪音，高效率穩(wěn)壓器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 555K |
| 代理商： | MIC38300 |
MIC38300
3A SuperLNR
Low Noise High Efficiency Regulator
ADVANCED INFORMATION
General Description
SuperLNR is a trademark of Micrel, Inc.
MLF and
Micro
LeadFrame are registered trademark of Amkor Technologies
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (
408
) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
July 2007
M9999-070607
(408) 944-0800
The MIC38300 is a 3A peak, 2.2A continuous output
current step down converter and the first device in a new
generation of SuperLNR providing the benefits of LDOs
in respect to ease of use, fast transient performance, high
PSRR and low noise while offering the efficiency of a
switching regulator.
As output voltages move lower, the output noise and
transient response of a switching regulator become an
increasing challenge for designers. By combining a
switcher whose output is slaved to the input of a high
performance LDO, high efficiency is achieved with a clean
low noise output. The MIC38300 is designed to provide
less than 5mV of peak to peak noise and over 70dB of
PSRR at 1kHz. Furthermore, the architecture of the
MIC38300 is optimized for fast load transients allowing to
maintain less than 30mV of output voltage deviation even
during ultra fast load steps, making the MIC38300 an ideal
choice for low voltage ASICs and other digital ICs.
The MIC38300 features a fully integrated switching
regulator and LDO combo, operates with input voltages
from 3.0V to 5.5V input and offers adjustable output
voltages down to 1.0V.
The MIC38300 is offered in the small 28-pin 4×6×0.9mm
MLF
package and can operate from –40
°
C to +125
°
C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com
___________________________________________________________________________________________________________
Typical Application
Features
3A peak output current
2.2A continuous operating current
Input voltage range: 3.0V to 5.5V
Adjustable output voltage down to 1.0V
Output noise less than 5mV
Ultra fast transient performance
Unique switcher plus LDO architecture
Fully integrated MOSFET switches
Micro-power shutdown
Easy upgrade from LDO as power dissipation
becomes an issue
Thermal shutdown and current limit protection
4mm × 6mm × 0.9mm MLF
package
Applications
Point-of-load applications
Networking, server, industrial power
Wireless base-stations
Sensitive RF applications
0
10
10
20
30
40
50
60
70
80
90
100
1k
10k
100k
FREQUENCY (Hz)
MIC38300 PSRR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC38300HYHL | 3A SuperLNR⑩ Low Noise High Efficiency Regulator |
| MIC3832 | Current-Fed PWM Controllers |
| MIC3832BN | Current-Fed PWM Controllers |
| MIC3832BWM | Current-Fed PWM Controllers |
| MIC3833BN | Current-Fed PWM Controllers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC38300_10 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:HELDO 3A High Efficiency Low Dropout Regulator |
| MIC38300HYHL | 制造商:Micrel 功能描述:LDO Regulator 3A Internal Inductor MLF28 |
| MIC38300HYHL TR | 功能描述:低壓差穩(wěn)壓器 - LDO 3A HELDO -High Efficiency Low Dropout Regulator (Lead Free) 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(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC38300HYHL-EV | 功能描述:MIC38300 HELDO? Series 1 - Single Channels per IC Positive Adjustable Linear Voltage Regulator Evaluation Board 制造商:microchip technology 系列:HELDO?? 零件狀態(tài):有效 每 IC 通道數(shù):1 - 單 電壓 - 輸出:1.8V 電流 - 輸出:3A 電壓 - 輸入:3 ~ 5.5 V 穩(wěn)壓器類型:正，可調(diào)式 工作溫度:-40°C ~ 125°C 板類型:完全填充 所含物品:板 使用的 IC/零件:MIC38300 標(biāo)準(zhǔn)包裝:1 |
| MIC38300HYHL-EV-PB | 制造商:Micrel Inc 功能描述: |
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