- 您现在的位置：买卖IC网 > PDF目录14836 > MIC4682YM (Micrel Inc)IC REG BUCK 2A 8SOIC PDF资料下载
参数资料
| 型号： | MIC4682YM |
| 厂商： | Micrel Inc |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 2A 8SOIC |
| 标准包装： | 95 |
| 系列： | SuperSwitcher™ |
| 类型： | 降压（降压） |
| 输出数： | 1 |
| 输入电压： | 4 V ~ 34 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 200kHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SOIC |
| 产品目录页面： | 1093 (CN2011-ZH PDF) |
| 其它名称： | 576-1802-5 MIC4682YM-ND |
MIC4682
Precision Current Limit SOIC-8
SuperSwitcher? Buck Regulator
General Description
The MIC4682 is an easy-to-use step-down (buck) switch-
mode voltage regulator. It features a programmable
current limit that allows 10% current limit accuracy over its
full operating temperature range. The precision current
limit makes the MIC4682 ideal for constant-voltage
constant-current applications, such as simple battery
chargers. The precision current limit also gives designers
the ability to set the maximum output current below the
saturation current rating of the inductor. This allows the
use of the smallest possible inductors for a given
application, saving valuable space and cost.
The MIC4682 is a very robust device. Its 4V to 34V input
voltage range allows the MIC4682 to safely be used in
applications where voltage transients may be present.
Additional protection features include cycle-by-cycle
current limiting and over-temperature shutdown. The
MIC4682 is available in a thermally optimized power
SOIC-8 package that allows it to achieve 2A of continuous
output current.
The MIC4682 requires a minimum number of external
components and can operate using a standard series of
inductors. Compensation is provided internally for fast
Features
? Programmable output current limit
– 10% accuracy over temperature
? Wide 4V to 34V operating input voltage range
? Fixed 200kHz PWM operation
? Power SOIC-8 package allows 2A continuous output
current
? All surface mount solution
? Internally compensated
? Less than 1μA typical shutdown-mode current
? Thermal shutdown protection
Applications
? Battery chargers
? White LED drivers
? Constant voltage constant current step-down
converters
? Simple step-down regulator with precise current limit
? USB power supplies
transient response and ease of use. The MIC4682 is
available in the 8-pin power SOIC with a –40°C to +125°C
junction temperature range.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
IN
SW
SHDN
FB
10M ISET
GND
+7.5V to +34V
C1
10μF
50V
(x2)
R3
5 8
4 1
MIC4682
3 2, 6, 7
L1
68μH
D1
B240
R1
3.01k
R2
976
5V/1A
C2
220μF
10V
6
5
4
3
MIC4682 Current Limit
Characteristics
R4
16.2k
2
1
V IN = 12V
0
0
0.5 1 1.5
2
CURRENT LIMIT (A)
Constant Current/Constant Voltage Li-Ion Battery Charger
SuperSwitcher is a trademark of Micrel, 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
June 2007
M9999-061507
相关PDF资料 |
PDF描述 |
|---|---|
| VI-J0H-EY-F3 | CONVERTER MOD DC/DC 52V 50W |
| LTC3532EDD#PBF | IC REG BUCK BOOST SYNC ADJ 10DFN |
| V24C24T150BG3 | CONVERTER MOD DC/DC 24V 150W |
| ECM40DCSD | CONN EDGECARD 80POS DIP .156 SLD |
| VI-J0H-EY-F2 | CONVERTER MOD DC/DC 52V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4682YM TR | 功能描述:直流/直流开关调节器 Precision Current Limit SO-8 Super Switcher (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MIC4684 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2A High-Efficiency SuperSwitcher Buck Regulator |
| MIC4684_10 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2A High-Efficiency SuperSwitcher Buck Regulator |
| MIC4684-3.3BM | 功能描述:IC REG BUCK 3.3V 2A 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:SuperSwitcher™ 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
| MIC4684-3.3BM TR | 功能描述:IC REG BUCK 3.3V 2A 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:SuperSwitcher™ 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
发布紧急采购，3分钟左右您将得到回复。