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MIC7401 датащи(PDF) 13 Page - Micrel Semiconductor

номер детали MIC7401
подробное описание детали  Configurable PMIC, Five-Channel Buck Regulator plus One-Boost with HyperLight Load짰, I2C Control, and Enable
PDF  68 Pages
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производитель  MICREL [Micrel Semiconductor]
домашняя страница  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC7401 датащи(HTML) 13 Page - Micrel Semiconductor

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Micrel, Inc.
MIC7401
March 16, 2015
13
Revision 1.0
Electrical Characteristics
(7) (Continued)
VIN = AVIN = PVIN(1-6) = 5.0V; VOUT1 = 1.8V; VOUT2 = 1.1V; VOUT3 = 1.8V; VOUT4 = 1.05V; VOUT5 = 1.25V; VOUT6 = 12V (refer to the
Evaluation Board Schematic for component values). TA = 25°C, unless otherwise noted. Bold values indicate −
40°C ≤ TJ ≤ +125°C.
Parameter
Conditions
Min.
Typ.
Max.
Unit
Buck Current Limit (OUT1-OUT5)
Buck 1 Current Limit Threshold
See Table 25 for IPROG Settings
3.075
4.1
5.125
A
Buck 2 Current Limit Threshold
See Table 25 for IPROG Settings
3.075
4.1
5.125
A
Buck 3 Current Limit Threshold
See Table 26 for IPROG Settings
3.075
4.1
5.125
A
Buck 4 Current Limit Threshold
See Table 26 for IPROG Settings
4.88
6.1
7.32
A
Buck 5 Current Limit Threshold
See Table 27 for IPROG Settings
3.075
4.1
5.125
A
Gross High-Side Current Limit [1-5]
With Respect to Buck [x] Current Limit
150
%
Zero Cross Threshold
Zero crossing detector
0
mV
Boost (VOUT6)
Boost Output Voltage (VOUT6)
Typical Output Voltage Accuracy
(11)
Includes Load, Line, and Reference
-1.5%
1.5%
%
Output Voltage Accuracy
(11)
-1%
1%
%
Load Regulation
IOUT6 = 1.0mA to 200mA
0.2
%
Line Regulation
VIN = 2.4V to 5.5V; IOUT6 = 10mA
0.2
%
VOUT6 Discharge Current
VIN = 3.3V; VOUT6 = 12V
111
148
185
mA
Boost Soft-Start Step Duration
Soft-Start 6 LSB
(10, 12)
3.84
4
4.16
µs/step
Boost Internal MOSFETs
Low-Side On-Resistance
VIN = 3.3V; ISW1 = −100mA
160
mΩ
Low-Side On-Resistance
VIN = 5.0V; ISW1 = −100mA
140
mΩ
Boost Disconnect MOSFETs
Disconnect Switch On-Resistance
IPVIN6O = 100mA; VIN = 3.3V
90
mΩ
Disconnect Switch Current Limit
5
A
Boost Switching Frequency
Switching Frequency (PWM Mode)
1.92
2
2.08
MHz
Minimum Duty Cycle
35
40
45
%
Maximum Duty Cycle
80
85
90
%
Boost Current Limit
NMOS Current-Limit Threshold
2.24
A



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