BD9142MUV Datasheet | ROHM

FEATURES Silicon Monolithic Integrated Circuit 1ch DC / DC Converter with synchronous rectifier - Output Voltage：1.0～3.3V / Adjustable - Output Current：3A - High Efficiency and Fast Transient Response - Dynamic Input Switching ○ABSOLUTE MAXIMUM RATING（Ta=25℃） Parameter Supply Voltage BST Voltage BST-SW Voltage EN, SW, ITH, DET VREG, CTL, ADJ Voltage Symbol QVCC PVCC AVCC VBST VBST-SW VEN, VSW, VITH, VDET VVREG, VCTL, VADJ Pd1 Pd2 Pd3 Pd4 Topr Tstg Tjmax Limit -0.3～+7 - 1 Unit V V V V W W W W ℃ ℃ ℃ -0.3～+14 -0.3～+7 -0.3～+7 0.34 - 3 0.69 - 4 2.20 - 5 3.56 - -40～+85 -55～+150 +150 Power Dissipation Operating Temperature Range Storage Temperature Range Maximum Junction Temperature - 1 Pd and Tj=150℃ should not be exceeded. - 2 IC only. - 3 1 layer, mounted on a board 74.2mm×74.2mm×1.6mmt Glass-epoxy PCB (Copper foil area : 10.29mm2) - 4 4 layers, mounted on a board 74.2mm×74.2mm×1.6mmt Glass-epoxy PCB (Copper foil area : 10.29mm2) , copper foil in each layers. - 5 4 layers, mounted on a board 74.2mm×74.2mm×1.6mmt Glass-epoxy PCB (Copper foil area : 5505mm2) , copper foil in each layers. ○OPERATING CONDITIONS（Ta=-40～+85℃） Parameter Supply Voltage EN Voltage Output Voltage range SW Average Output Current1 (PVCC INPUT) SW Average Output Current2 (QVCC INPUT) - 6 Pd should not be exceeded. Symbol QVCC PVCC AVCC VEN VOUT ISW1 ISW2 Min. 4.5 0 1.0 - Typ. 5.0 - Max. 6.5 QVCC 3.3 3.0- 0.1 Unit V V V A A REV. A .Data Sheet.in 2/4 ○ELECTRICAL CHARACTERISTICS （Unless otherwise specified , Ta=25℃, QVCC =5V, EN= QVCC） Parameter Standby Current Bias Current EN Low Voltage EN High Voltage EN Input Current Oscillation Frequency INPUT FET ON Resistance Highside FET ON Resistance Lowside FET ON Resistance ADJ Reference Voltage ITH SINK Current ITH Source Current UVLO Threshold Voltage UVLO Release Voltage DET Threshold Voltage DET Release Voltage CTL Pch ON Resistance CTL Nch ON Resistance Soft Start Time Timer Latch Time Output Short circuit Threshold Voltage Symbol...