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參數(shù)資料
| 型號： | MIC3385-1.5YHL TR |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 552K |
| 描述： | IC REG DL BCK/LINEAR SYNC 14-MLF |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 拓?fù)洌?/td> | 降壓（降壓）同步（1），線性（LDO）（1） |
| 功能： | 任何功能 |
| 輸出數(shù)： | 2 |
| 頻率 - 開關(guān)： | 8MHz |
| 電壓/電流 - 輸出 1： | 1.5V，1A |
| 電壓/電流 - 輸出 2： | 1.5V，120mA |
| 帶 LED 驅(qū)動器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-VFDFN 裸露焊盤，14-MLF? |
| 供應(yīng)商設(shè)備封裝： | 14-MLF?（3x3.5） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 1093 (CN2011-ZH PDF) |
| 其它名稱： | 576-3110-6 |
MIC3385
8MHz Inductorless Buck Regulator
with LDO Standby Mode
LOWQ is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. " 2180 Fortune Drive " San Jose, CA 95131 " USA " tel +1 (408) 944-0800 " fax + 1 (408) 474-1000 " http://www.micrel.com
General Description
The Micrel MIC3385 is a high-efficiency inductorless buck
regulator that features a LOWQ
?/DIV>
LDO standby mode that
draws only 18礎(chǔ) of quiescent current. The MIC3385
requires no external inductor enabling an ultra-low noise,
small size, and high efficiency solution for portable power
applications.
In PWM mode, the MIC3385 operates with a constant
frequency 8MHz PWM control. Under light load conditions,
such as in system sleep or standby modes, the PWM
switching operation can be disabled to reduce switching
losses. In this light load LOWQ
?/DIV>
mode, the LDO maintains
the output voltage and draws only 18礎(chǔ) of quiescent
current. The LDO mode of operation saves battery life
while not introducing spurious noise and high ripple as
experienced with pulse skipping or bursting mode
regulators.
The MIC3385 operates from 2.7V to 5.5V input and
features internal power MOSFETs that can supply up to
600mA output current in PWM mode. It can operate with a
maximum duty cycle of 100% for use in low-dropout
conditions.
The MIC3385 is available in the 14-pin 3mm x 3.5mm
MLF
?/DIV>
package with a junction operating range from 40癈
to +125癈.
Data sheets and support documentation can be found on
Micrels web site at: www.micrel.com
.
Features
" 2.7 to 5.5V supply voltage
" Light load LOWQ
?/DIV>
LDO mode
18礎(chǔ) quiescent current
Low noise, 75礦rms
" 8MHz PWM mode
Output current to 600mA
>90% efficiency
100% maximum duty cycle
" Adjustable output voltage option down to 1V
" Ultra-fast transient response
" NO external inductor required
" Enables sub 1mm profile solution
" Fully integrated MOSFET switches
" Micropower shutdown
" Thermal shutdown and current limit protection
" Pb-free 14-pin 3x3.5x0.9mm MLF
?/DIV>
package
" 40癈 to +125癈 junction temperature range
Applications
" Slim digital cameras
" MP3 players
" Portable power applications
" Cellular phones
" PDAs
" USB peripherals
Typical Application
Adjustable Output Buck Regulator with LOWQ
?/DIV>
Mode
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500 600
OUTPUT CURRENT (mA)
2.5V
OUT
Efficiency
V
IN
=3.2V
V
IN
=3.6V
V
IN
=4.2V
May 2010
M9999-051310-B
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC3385YHL | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC3385YHL TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 8MHz Power System Module in 14ld MLF (Lead-Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC3385YHLTR | 制造商:Micrel Inc 功能描述:IC BUCK REG 8MHZ SMD 制造商:Micrel Inc 功能描述:IC, BUCK REG, 8MHZ, SMD 制造商:Micrel 功能描述:DC-DC 8MHz Inductorless LDO Adj MLF14 |
| MIC3385YHL-TR | 功能描述:Linear And Switching Voltage Regulator IC 2 Output Step-Down (Buck) Synchronous (1), Linear (LDO) (1) 8MHz 14-VFDFN Exposed Pad, 14-MLF? 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 拓?fù)?降壓（降壓）同步（1），線性（LDO）（1） 功能:任何功能 輸出數(shù):2 頻率 - 開關(guān):8MHz 電壓/電流 - 輸出 1:可調(diào)至 1V，1A 電壓/電流 - 輸出 2:1V，120mA 電壓/電流 - 輸出 3:- 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶定序器:無 電壓 - 電源:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-VFDFN 裸露焊盤，14-MLF? 供應(yīng)商器件封裝:14-MLF?（3x3.5） 標(biāo)準(zhǔn)包裝:1 |
| MIC3385YML | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:8MHz Power System Module with LDO Standby Mode |
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