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参数资料
| 型号： | MIC4682BM |
| 厂商： | Micrel Inc |
| 文件页数： | 3/15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 |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) (3) ....................................................38V
Shutdown Voltage (V SHDN )............................. –0.3V to +38V
Steady-State Output Switch Voltage (V SW ) .................... –1V
Feedback Voltage (V FB ) .................................................12V
Current Limit Set Voltage (V ISET ) ....................... 1.23V to 7V
Ambient Storage Temperature (T s ) ........... –65°C to +150°C
ESD Rating (5) .................................................................. 2kV
MIC4682
Operating Ratings (2)
Supply Voltage (V IN ) (4, 7) ....................................... 4V to 34V
Junction Temperature Range (T J )............. –40°C to +125°C
Thermal Resistance Impedance
SOIC ( θ JA ) (6) .......................................................63°C/W
SOIC ( θ JC ) (6) .......................................................20°C/W
Electrical Characteristics
V IN = 12V; I OUT = 500mA; R ISET = 16.2k (1A current limit); T J = 25°C, bold values indicate –40°C< T J < +125°C, unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V IN
I IN
Supply Voltage Range
Quiescent Current
Standby Quiescent Current
Note 4
V FB = 1.5V
V SHDN = 5V (Regulator off)
4
7
35
34
12
100
V
mA
μA
V SHDN = V IN
1
μA
V FB
Feedback Voltage
(±1%)
1.217
1.230
1.243
V
(±2%)
1.205
1.255
V
8V ≤ V IN ≤ 34V, 0.1A ≤ I LOAD ≤ 0.8A
1.193
1.180
1.230
1.267
1.280
V
V
I LIM
f SW
D MAX
V SW
I SW
Current Limit Accuracy, Note 7
Oscillator Frequency
Maximum Duty Cycle
Switch Saturation Voltage
Switch Leakage Current
See Test Circuit, V OUT = 3.6V
V FB = 1.0V
I OUT = 1A
V IN = 34V, V SHDN = 5V, V SW = 0V
0.9
180
93
1
200
95
1.4
2
1.1
220
1.8
100
A
kHz
%
V
μA
V IN = 34V, V SHDN = 5V, V SW = –1V
2
10
mA
V SHDN
Shutdown Input Logic Level
Regulator Off
Regulator On
2
1.4
1.25
0.8
V
V
I SHDN
Shutdown Input Current
V SHDN = 5V (Regulator Off)
V SHDN = 0V (Regulator On)
–10
–10
–0.5
–0.5
1
1
μA
μA
T J
Thermal Shutdown
160
°C
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Absolute maximum rating is intended for voltage transients only; prolonged DC operation is not recommended.
4. V IN(MIN) = VOUT + 2.5V or 4V whichever is greater.
5. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k ? in series with 100pF.
6. Measured on 1.5” square of 1oz. copper FR4 printed circuit board connected to the device ground leads.
7. Short circuit protection is guaranteed to V IN = 30V max.
June 2007
3
M9999-061507
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4682BM TR | 功能描述:IC REG BUCK 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 |
| MIC4682YM | 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 |
| 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 |
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