音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

MIC4681 Datasheet

  • MIC4681

  • Micrel Semiconductor [2A-Peak SuperSwitcher⑩ SOP-8 Buck Re...

  • 397.47KB

  • MICREL   MICREL

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

MIC4681
Micrel
MIC4681
2A-Peak SuperSwitcher鈩?SOP-8 Buck Regulator
Final Information
General Description
The MIC4681 SuperSwitcher鈩?is an easy-to-use step-down
(buck) voltage-mode switching regulator. The 200kHz
MIC4681 achieves over 1A of continuous output current over
a 4V to 30V input range in an 8-lead SOPpackage . The
MIC4681 features a high 2.1A minimum current limit, making
the device ideal for pulsed current applications such as GSM
and TDMA cell phone battery chargers and power supplies.
The MIC4681 sustains an output of 4.2V/2A within a typical
GSM charging environment.
The MIC4681 has an input voltage range of 4V to 30V, with
excellent line, load, and transient response. The regulator
performs cycle-by-cycle current limiting and thermal shut-
down for protection under fault conditions. In shutdown
mode, the regulator draws less than 6碌A(chǔ) of standby current.
The MIC4681 SuperSwitcher鈩?regulator requires a mini-
mum number of external components and can operate using
a standard series of inductors and capacitors. Frequency
compensation is provided internally for fast transient re-
sponse and ease of use.
The MIC4681 is available in the 8-lead SOP with a
鈥?0擄C to +125擄C junction temperature range.
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
SO-8 package with over 1A continuous output current
Capable of 2A pulse charging for GSM applications
All surface mount solution
Only 4 external components required
Fixed 200kHz operation
Output adjustable down to 1.25V
Internally compensated with fast transient response
Wide 4V to 30V operating input voltage range
Less than 6碌A(chǔ) typical shutdown-mode current
Up to 90% efficiency
Thermal shutdown
Overcurrent protection
Applications
鈥?Cellular phone battery charger
鈥?Cellular phone power supply
鈥?Simple 1A continuous high-efficiency step-down (buck)
regulator
鈥?Replacement of a TO-220 and TO-263 designs
鈥?Positive-to-negative converter (inverting buck-boost)
鈥?Negative boost converter
鈥?Higher output current regulator using external FET
Typical Applications
+5V to +30V
C1
22碌F
35V
SHUTDOWN
ENABLE
2
MIC4681BM
IN
SW
3
L1
68碌H
R1
3.01k
R2
2.94k
2.5V/1A
C2
220碌F
10V
1
SHDN
GND
5鈥?
FB
4
Power
SOP-8
D1
B340A or
SS36
Adjustable Regulator Circuit
SuperSwitcher is a trademark of Micrel, Inc.
Micrel, Inc. 鈥?1849 Fortune Drive 鈥?San Jose, CA 95131 鈥?USA 鈥?tel + 1 (408) 944-0800 鈥?fax + 1 (408) 944-0970 鈥?http://www.micrel.com
February 2001
1
MIC4681

MIC4681相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Micrel Semiconductor [Low-Voltage Secondary-Side Shunt Regu...
    MICREL
  • 英文版
    Micrel Semiconductor [100V Half Bridge MOSFET Drivers]
    MICREL
  • 英文版
    Micrel Semiconductor [100V Half Bridge MOSFET Driver with A...
    MICREL
  • 英文版
    Micrel Semiconductor [100V Half Bridge MOSFET Drivers 3/2A ...
    MICREL
  • 英文版
    6A-Peak Low-Side MOSFET Driver
    MICREL
  • 英文版
    Micrel Semiconductor [Dual 3A-Peak Low-Side MOSFET Driver]
    MICREL
  • 英文版
    Micrel Semiconductor [IttyBitty⑩ Low-Side MOSFET Driver]
    MICREL
  • 英文版
    Micrel Semiconductor [6A-Peak Low-Side MOSFET Driver Bipola...
    MICREL
  • 英文版
    Micrel Semiconductor [9A-Peak Low-Side MOSFET Driver Bipola...
    MICREL
  • 英文版
    Micrel Semiconductor [9A-Peak Low-Side MOSFET Driver]
    MICREL
  • 英文版
    Micrel Semiconductor [Dual 3A-Peak Low-Side MOSFET Driver B...
    MICREL
  • 英文版
    Micrel Semiconductor [Dual 3A-Peak Low-Side MOSFET Driver]
    MICREL
  • 英文版
    Dual 3A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Proces...
    MICREL
  • 英文版
    Micrel Semiconductor [Dual 1.5A-Peak Low-Side MOSFET Driver...
    MICREL
  • 英文版
    12A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process
    MICREL
  • 英文版
  • 英文版
    Micrel Semiconductor [Quad 1.2A-Peak Low-Side MOSFET Driver...
    MICREL
  • 英文版
    Micrel Semiconductor [Quad 1.2A-Peak Low-Side MOSFET Driver...
    MICREL
  • 英文版
    Micrel Semiconductor [Quad 1.2A-Peak Low-Side MOSFET Driver...
    MICREL
  • 英文版
    Micrel Semiconductor [200kHz Simple 0.5A Buck Voltage Regul...
    MICREL

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！