HM3430/HM3430A/HM3430D8 High efficiency, 3A synchronous rectification Step-Down converter, Operates Over A Wide Input Voltage Range of 2.5V to 5.5V
The HM3430/A/D8 is a high-efficiency synchronous Buck converter that can operate over a wide input voltage range of 2.5V to 5.5V and can deliver up to 3A of output current. It integrates the main switch and synchronous switch inside, and has extremely low on-resistance to reduce conduction loss. The switching frequency is 1.0MHz, which can reduce the size of the external inductor and output capacitor and reduce the output voltage ripple. The HM3430/A/D8 synchronous rectification Step-Down converter is available in SOT23-5/SOT23-6/DFN2×2-8 package.
Features
●2.5V~5.5V input voltage range
●35μA ultra-low quiescent current
●Internal soft-start reduces chip stress
●Input Overvoltage Protection (OVP)
●Short circuit protection Hiccup mode
●Internal integrated low RDS(ON) switch
●1.0MHz switching frequency minimizes external components
●Optimized PFM mode to improve light-load efficiency
●100% duty cycle supports input and output low dropout operation
●RoHS Compliant and Halogen Free
●HM3430: SOT23-5/HM3430A: SOT23-6/HM3430D8: DFN2×2-8 package
Applications
●Set-top box
●Mobile phones, handheld game consoles, media players
●Electric toys, meters, etc.
Absolute Maximum Ratings (TA=25℃)
Electrical Characteristics（TA=25℃）
(VIN=5V, VOUT=1.8V, L=2.2μH, COUT=22μF, unless otherwise specified)
Ordering Information
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