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ML4902CT 데이터시트(PDF) 3 Page - Micro Linear Corporation

부품명 ML4902CT
상세설명  High Current Synchronous Buck Controller
PDF  12 Pages
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제조업체  MICRO-LINEAR [Micro Linear Corporation]
홈페이지  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4902CT 데이터시트(HTML) 3 Page - Micro Linear Corporation

  ML4902CT Datasheet HTML 1Page - Micro Linear Corporation ML4902CT Datasheet HTML 2Page - Micro Linear Corporation ML4902CT Datasheet HTML 3Page - Micro Linear Corporation ML4902CT Datasheet HTML 4Page - Micro Linear Corporation ML4902CT Datasheet HTML 5Page - Micro Linear Corporation ML4902CT Datasheet HTML 6Page - Micro Linear Corporation ML4902CT Datasheet HTML 7Page - Micro Linear Corporation ML4902CT Datasheet HTML 8Page - Micro Linear Corporation ML4902CT Datasheet HTML 9Page - Micro Linear Corporation Next Button
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ML4902
3
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
VDD ....................................................................... 13.5V
VCC ............................................................................. 7V
Peak Driver Output Current ....................................... ±2A
VFB Voltage ...................................... GND - 0.3V to 5.5V
ISENSE Voltage .................................. GND - 0.5V to 5.5V
All Other Inputs .................... GND - 0.3V to VDD + 0.3V
SHDN Input Current .............................................. 100
µA
Junction Temperature .............................................. 150°C
Storage Temperature Range ..................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................... 260°C
Thermal Resistance (
θJA).................................... 100°C/W
OPERATING CONDITIONS
Temperature Range ....................................... 0°C to 70°C
VDD Range .............................................. 11.4V to 12.6V
VCC Range ............................................... 4.75V to 5.25V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VDD = 12V, VCC = SHDN = 5V, TA = Operating Temperature Range (Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE
VREF
Output Voltage
3.51
3.535
3.56
V
Line Regulation
11V < VDD < 13V
0.5
mV/V
UV LOCKOUT
VDD Start-up Threshold
10.2
10.5
10.8
V
VDD Hysteresis
300
450
600
mV
VCC Start-up Threshold
4.25
4.4
4.5
V
VCC Hysteresis
300
400
500
mV
SHUTDOWN
Input Low Voltage
0.8
V
Input High Voltage
2.0
V
Delay to Output
50
ns
POWER GOOD COMPARATOR
Output Voltage in Regulation
5k
Ω pull-up to 5V
4.8
V
Output Voltage out of Regulation
VFB < 90% VDAC or >110% VDAC
0.4
V
Output Voltage in Shutdown
SHDN = 0V, 5k
Ω pull-up to 5V
0.4
V
BUCK REGULATOR
Oscillator Frequency
160
200
230
kHz
Duty Cycle Ratio
RANGE = 1, VFB = 0V,
85
98
%
DAC (D3-D0) Code = 0100
RANGE = 1, VFB > 3.193V,
0
%
DAC (D3-D0) Code = 0100
DAC (RANGE, D3-D0) Input Low Voltage
0.8
V
DAC (RANGE, D3-D0) Input High Voltage
2.0
V



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