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參數(shù)資料
| 型號(hào)： | MIC3385 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 8MHz Power System Module with LDO Standby Mode |
| 中文描述： | 8MHz的電力系統(tǒng)模塊穩(wěn)壓器待機(jī)模式 |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大小： | 684K |
| 代理商： | MIC3385 |
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MIC3385
8MHz Power System Module with LDO
Standby Mode
Preliminary Information
General Description
Patent Pending
LOWQ
is a trademark of Micrel, Inc.
MLF and
Micro
LeadFrame 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
November 2006
1
M9999-111006-A
The Micrel MIC3385 is a high efficiency Power System on
a Chip that features a
LOWQ
LDO standby mode that
draws only 18μA 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
mode, the LDO
maintains the output voltage and draws only 18μA 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
package with a junction operating range from –40
°
C
to +125
°
C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
2.7 to 5.5V supply voltage
Light load
LOWQ
LDO mode
–
18
μ
A quiescent current
–
Low noise, 75μVrms
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 3mm x 3.5mm MLF
package
–40
°
C to +125
°
C junction temperature range
Applications
Cellular phones
PDAs
USB peripherals
Typical Application
Adjustable Output Buck Regulator with
LOWQ
Mode
0
10
20
30
40
50
60
70
80
90
100
OUTPUT CURRENT (mA)
1.8V
OUT
Efficiency
0
100
200
300
400
500
V
IN
=3.2V
V
IN
=3.6V
V
IN
=4.2V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC3385YML | 8MHz Power System Module with LDO Standby Mode |
| MIC37101-2.5BM | 1A LOW VOLTAGE U CAP LDO REGULATOR |
| MIC37100 | 1A LOW VOLTAGE U CAP LDO REGULATOR |
| MIC37100-1.5BM | 1A LOW VOLTAGE U CAP LDO REGULATOR |
| MIC37100-1.5BS | 1A LOW VOLTAGE U CAP LDO REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC3385_10 | 制造商:MICREL 制造商全稱(chēng):Micrel Semiconductor 功能描述:8MHz Inductorless Buck Regulator with LDO Standby Mode |
| MIC3385-1.5YHL | 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: |
| MIC3385-1.5YHL TR | 功能描述:直流/直流開(kāi)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(kāi)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 |
| MIC3385-1.5YHL-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):停產(chǎn) 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(kāi)關(guān):8MHz 電壓/電流 - 輸出 1:1.5V，1A 電壓/電流 - 輸出 2:1.5V，120mA 電壓/電流 - 輸出 3:- 帶 LED 驅(qū)動(dòng)器:無(wú) 帶監(jiān)控器:無(wú) 帶定序器:無(wú) 電壓 - 電源:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-VFDFN 裸露焊盤(pán)，14-MLF? 供應(yīng)商器件封裝:14-MLF?（3x3.5） 標(biāo)準(zhǔn)包裝:1 |
| 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: |
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