Sharp LC-32LD135K (serv.man2) Service Manual ▷ View online
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LC-32LD135
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Table 6: Pin functions
MP1484
a) General Description
The MP1484 is a monolithic synchronous buck regulator. The device integrates top and
bottom 85mΩ MOSFETS that provide 3A of continuous load current over a wide operating
input voltage of 4.75V to 18V. Current mode control provides fast transient response and
cycle-by-cycle current limit.
input voltage of 4.75V to 18V. Current mode control provides fast transient response and
cycle-by-cycle current limit.
An adjustable soft-start prevents inrush current at turn-on and in shutdown mode, the
supply current drops below 1μA.
The MP1484 is PIN compatible to the MP1482 2A/18V/Synchronous Step-Down Converter.
The MP1484 is PIN compatible to the MP1482 2A/18V/Synchronous Step-Down Converter.
b) Features
• 3A Continuous Output Current
• Wide 4.75V to 18V Operating Input Range
• Integrated 85mΩ Power MOSFET Switches
• Wide 4.75V to 18V Operating Input Range
• Integrated 85mΩ Power MOSFET Switches
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LC-32LD135
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LC-32LD135
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LC-32LD135
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Fast Transient Response
Adjustable Output Voltage
Power-On-Reset Monitoring on Both VCNTL and VIN Pins
Internal Soft-Start
Current-Limit and ShortCurrent-Limit Protections
Thermal Shutdown with Hysteresis
Open-Drain VOUT Voltage Indicator (POK)
Low Shutdown Quiescent Current (< 30mA )
Shutdown/Enable Control Function
Simple SOP-8P Package with Exposed Pad
Lead Free and Green Devices Available (RoHS Compliant)
Adjustable Output Voltage
Power-On-Reset Monitoring on Both VCNTL and VIN Pins
Internal Soft-Start
Current-Limit and ShortCurrent-Limit Protections
Thermal Shutdown with Hysteresis
Open-Drain VOUT Voltage Indicator (POK)
Low Shutdown Quiescent Current (< 30mA )
Shutdown/Enable Control Function
Simple SOP-8P Package with Exposed Pad
Lead Free and Green Devices Available (RoHS Compliant)
APPLICATIONS
Motherboards, VGA Cards
Notebook PCs
Add-in Cards
Notebook PCs
Add-in Cards
Figure 9: Pin configuration
Table 8: Recommended operating conditions
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