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MIC45208 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC45208
Description  26V 10A DC-to-DC Power Module
PDF  31 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC45208 Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC45208
May 29, 2014
5
Revision 1.2
Electrical Characteristics
(5) (Continued)
VPIN = VIN = VEN = 12V, VOUT = 3.3V, VBST  VSW = 5V, TJ = +25ºC. Bold values indicate 40ºC  TJ  +125ºC, unless otherwise noted.
Parameter
Condition
Min.
Typ.
Max.
Units
Oscillator
Switching Frequency
VFREQ = VIN, IOUT = 2A
400
600
750
kHz
VFREQ = 50%VIN, IOUT = 2A
350
Maximum Duty Cycle
85
%
Minimum Duty Cycle
VFB = 1V
0
%
Minimum Off-Time
140
200
260
ns
Soft-Start
Soft-Start Time
3
ms
Short-Circuit Protection
Current-Limit Threshold
VFB = 0.79V
30
14
0
mV
Short-Circuit Threshold
VFB = 0V
23
7
9
mV
Current-Limit Source Current
VFB = 0.79V
50
70
90
µA
Short-Circuit Source Current
VFB = 0V
25
35
45
µA
Leakage
SW, BST Leakage Current
10
µA
FREQ Leakage Current
10
µA
Power Good (PG)
PG Threshold Voltage
Sweep VFB from Low-to-High
85
90
95
%VOUT
PG Hysteresis
Sweep VFB from High-to-Low
6
%VOUT
PG Delay Time
Sweep VFB from Low-to-High
100
µs
PG Low Voltage
VFB < 90% × VNOM, IPG = 1mA
70
200
mV
Thermal Protection
Overtemperature Shutdown
TJ Rising
160
°C
Overtemperature Shutdown Hysteresis
15
°C



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