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MIC4685-3.3YR PDF预览

MIC4685-3.3YR

更新时间: 2024-02-08 22:10:39
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关
页数 文件大小 规格书
15页 2094K
描述
SWITCHING REGULATOR, 225kHz SWITCHING FREQ-MAX, PSSO7

MIC4685-3.3YR 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.6模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:30 V最小输入电压:4 V
标称输入电压:12 VJESD-30 代码:R-PSSO-G7
JESD-609代码:e3长度:9.395 mm
湿度敏感等级:3功能数量:1
端子数量:7最高工作温度:125 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:2.16 mm表面贴装:YES
切换器配置:BUCK最大切换频率:225 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:40
宽度:8 mmBase Number Matches:1

MIC4685-3.3YR 数据手册

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MIC4685  
Micrel, Inc.  
Absolute Maximum Ratings (Note 1)  
Operating Ratings (Note 2)  
Supply Voltage (V ), Note 1  
+34V  
Supply Voltage (V ), Note 4  
+4V to +30V  
IN  
IN  
Enable Voltage (V  
)
–0.3V to +V  
Junction Temperature (T )  
–40°C to +125°C  
EN  
IN  
J
Steady-State Output Switch Voltage (V  
)
–1V to V  
Package Thermal Resistance  
SW  
IN  
Feedback Voltage (V  
)
+12V  
θ , SPAK-7 Lead  
11.8°C/W  
2.2°C/W  
FB  
JA  
θ
, SPAK-7 Lead  
Storage Temperature (T )  
–65°C to +150°C  
2kV  
JC  
S
ESD Rating, Note 3  
Electrical Characteristics  
V
= V = 12V, V  
= 5V: I  
= 500mA; T = 25°C, unless otherwise noted. Bold values indicate -40°C ≤ T ≤ +125°C.  
IN  
EN  
OUT  
OUT A
 
J  
Parameter  
Condition  
Min  
Typ  
Max  
Units  
MIC4685 [Adjustable]  
Feedback Voltage  
(±2%)  
(±3%)  
1.210  
1.198  
1.235 1.260  
V
V
1.272  
8V ≤ VIN ≤ 30V, 0.1A ≤ ILOAD ≤ 1A, VOUT = 5V, Note 4  
1.186  
1.173  
1.235 1.284  
V
V
1.297  
Feedback Bias Current  
MIC4685-3.3  
50  
nA  
Output Voltage  
(±2%)  
(±3%)  
3.234  
3.200  
3.300 3.366  
V
V
3.400  
8V ≤ VIN ≤ 30V, 0.1A ≤ ILOAD ≤ 1A, VOUT = 3.3V,  
3.168  
3.315  
3.300 3.432  
V
V
3.465  
Feedback Bias Current  
MIC4685-5.0  
1.25  
mA  
Output Voltage  
(±2%)  
(±3%)  
4.900  
4.850  
5.000 5.100  
V
V
5.150  
8V ≤ VIN ≤ 30V, 0.1A ≤ ILOAD ≤ 1A, VOUT = 5V,  
4.800  
4.750  
5.000 5.200  
V
V
5.250  
Feedback Bias Current  
MIC4685/-3.3/-5.0  
1.25  
mA  
Maximum Duty Cycle  
VFB = 1.0V  
94  
%
µA  
mA  
mA  
mA  
V
Output Leakage Current  
VIN = 30V, VEN = 0V, VSW = 0V  
VIN = 30V, VEN = 0V, VSW = 1V  
VFB = 1.5V  
5
1.4  
6
500  
20  
Quiescent Current  
12  
Bootstrap Drive Current  
Bootstrap Voltage  
VFB = 1.5V, VSW = 0V  
IBS = 10mA, VFB = 1.5V, VSW = 0V  
VFB = 0V  
250  
5.5  
30  
380  
6.2  
70  
Frequency Fold Back  
Oscillator Frequency  
Saturation Voltage  
120  
225  
kHz  
kHz  
V
180  
200  
0.59  
IOUT = 1A  
Short Circuit Current Limit  
Shutdown Current  
VFB = 0V, See Test Circuit  
VEN = 0V  
3.5  
2
6
A
150  
200  
µA  
V
Enable Input Logic Level  
regulator on  
regulator off  
0.8  
50  
V
Enable Pin Input Current  
VEN = 0V (regulator off)  
VEN = 0V (regulator on)  
16  
µA  
mA  
°C  
-1  
-0.83  
160  
Thermal Shutdown @ TJ  
Notes:  
1. Exceeding the absolute maximum rating may damage the device.  
2. The device is not guaranteed to function outside its operating rating.  
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.  
4. 2.5V of headroom is required between VIN and VOUT. The headroom can be reduced by implementing a bootstrap diode as seen on the 5V to  
3.3V circuit on page 1.  
March 2005  
3
M9999-031805  

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