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HM1483 Datasheet - HMSEMI

Part Name
Description
MFG CO.
HM1483
HMSEMI
Shenzhen Huazhimei Semiconductor Co., Ltd HMSEMI
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Description
HM1483 is a monolithic 30V, 3.0A step-down switch regulator. HM1483 integrates a 36V 65mΩ high side and a 36V, 45mΩ low side MOSFETs to provide 3.0A continuous load current over a 6.5V to 36V wide operating input voltage with 30V input over voltage protection. Peak current mode control provides fast transient responses and cycle-by-cycle current limiting. Programmable soft-start prevents inrush current at power-up. Flip-chip TSOT23-8 package makes the part best fit narrow space applications

Features
● 3.0A continuous output current capability
● 6.5V to 30Vwide operating input range with input Over Voltage Protection
● Integrated 36V, 65mΩ high side and 36V, 45mΩ low side power MOSFET switches
● Up to 95% efficiency
● Programmable Soft-Start limits the inrush current at turn-on
● Stable with Low ESR Ceramic Output Capacitors
● Fixed 300KHz Switching Frequency
● Input Under-Voltage Lockout.
● Input over-voltage protection to protect device from working in high voltage and high current condition
● Output short protection with both high side current limit and low side current limit to protect the device in hard short
● Output Over-Voltage Protection
● Over-Temperature Protection
● Small size Flip-Chip TSOT23-8 Package, best for narrow space application. More reliable and less parasitic voltage spike comparing with bonding wire package

Applications
● Set-Top-Box
● Televisions
● DVD, LCD Displays
● OLPC, Netbook
● Datacom, XDSL modems
● Distributed Power Systems
● USB car charger
● Portable charging device
● General purpose

 

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