LV56351HA: Step-Up DC-DC Converter, 1-Channel

LV56351HA integrates 1ch DC/DC boost converter and 1ch LDO. It is suitable as the power supply for BS/CS antennas of LCD/PDP TV and BD recorders that require automatic recovery without IC destruction and malfunction when the output is short-circuited.

Features
  • Boost mode:Soft start function (t=2.8ms)
  • Boost mode:Pulse by pulse over current protection function
  • Boost mode:Short circuit protection function
  • LDO mode:Over current limiter (fold-back characteristics)
  • Common:Under voltage lockout
  • Common:Thermal shut down
  • Common:Power good
  • Common:Internal fixed switching frequency(=425kHz)
Benefits
  • Can decrease a rush current
  • Over current protection
  • Short circuit protection
  • limiting a over current. (damage protection for external parts)
  • Prevention of instability operation in under voltage
  • Thermal protection
  • Stability operation
  • No need to attach the external parts
Applications
  • Boost convertor attached LDO function
End Products
  • Power supply for BS/CS parabola antenna
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
LV56351HA Application NoteANDLV56351HA/D (617kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
HSSOP14 (225mil)944AA (59.2kB)A
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
1-channel Step-up DC-DC Converter ICENA2145/D (193.0kB)0
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
LV56351HAGEVB_BOM_ROHS.PDFLV56351HAGEVB_BOM_ROHS (38kB)0
LV56351HAGEVB_GERBER.ZIPLV56351HAGEVB_GERBER (14kB)0
LV56351HAGEVB_SCHEMATIC.PDFLV56351HAGEVB_SCHEMATIC (26kB)0
LV56351HAGEVB_TEST_PROCEDURE.PDFLV56351HAGEVB_TEST_PROCEDURE (91kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
LV56351HAGEVBActivePb-freeStep-Up DC-DC Converter, 1-Channel Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LV56351HA-AHActivePb-free Halide freeHSSOP-14944AA3Tape and Reel2000$0.809
LV56351HA-ZHLast ShipmentsPb-free Halide freeHSSOP-14944AA3Fan-Fold70
Specifications
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
LV56351HA-AHLinear Step-UpVoltage Mode823150.5288.4400
1-channel Step-up DC-DC Converter IC (193.0kB) LV56351HA
LV56351HA Application Note LV56351HA
LV56351HAGEVB
LV56351HAGEVB
LV56351HAGEVB
LV56351HAGEVB
HSSOP14 (225mil) LA4815VH