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| 型号： | MIC4690BM |
| 厂商： | Micrel Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1A 8SOIC |
| 标准包装： | 95 |
| 系列： | SuperSwitcher™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 1.235V |
| 输入电压： | 4 V ~ 34 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 1A |
| 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 |
MIC4690
General Description
Micrel
MIC4690
500kHz 1A SuperSwitcher? Buck Regulator
Features
The MIC4690 SuperSwitcher? is an easy-to-use, 500kHz
step-down PWM voltage regulator. The MIC4690 achieves
over 1A of continuous output current over a wide input voltage
range in an 8-lead SO (small outline) package.
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?
?
?
SO-8 package with over 1A output current
Fixed 500kHz operation
Wide 4V to 34Vinput voltage range
Output voltage adjustable to 1.23V
The high switching frequency of the MIC4690 allows the
smallest surface-mount inductors and capacitors to be used.
Internal compensation ensures fast transient response and a
minimum amount of external components.
The MIC4690 features a power SO-8 package with a special
lead frame that allows over 1A of continuous current. The
MIC4690, housed in an SO-8, can replace larger TO-220 and
? All surface mount solution
? Internally compensated with fast transient response
? Up to 85% efficiency
? Overcurrent protection
? Frequency foldback short-circuit protection
? Thermal shutdown
Applications
TO-263 packages in many applications.
The MIC4690 allows for a high degree of safety. It has a wide
input voltage range of 4V to 34V, allowing for it to be used in
applications where input voltage transients may be present.
Built-in safety features include over-current protection, fre-
quency foldback protection, and thermal shutdown.
The MIC4690 is available in an 8-lead SO package with a
junction temperature range of –40 ° C to +125 ° C.
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?
?
?
?
?
?
?
?
Simple 1A step-down (buck) regulator
Replacement of TO-220 and TO-263 designs
12V to 5V/3.3V/2.5V/1.8V/1.5V conversion
5V to 2.5V/1.8V/1.5V conversion
On-card switching regulators
Hard disk drives
Cable modems
Positive-to-negative converters
Simple battery chargers
Typical Application
Power
SOP-8
2.5V Adjustable Converter
μ
Power
SOP-8
μ
μ
1.8V Adjustable Converter
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
April 2005
1
MIC4690
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4690BM TR | 功能描述:IC REG BUCK ADJ 1A 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 |
| MIC4690YM | 功能描述:直流/直流开关调节器 SO-8 500KHz Simple Buck Regulator (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 |
| MIC4690YM TR | 功能描述:直流/直流开关调节器 SO-8 500KHz Simple Buck Regulator (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 |
| MIC4690YM | 制造商:Micrel Inc 功能描述:Voltage Regulator IC |
| MIC4690YMG11 | 制造商:Micrel 功能描述:The Micrel MIC4690YMG11 is a 1A Synchronous Buck Regulator. |
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