BD19914MUV Datasheet | ROHM

1/4 Structure Product name Model name Function 特 長 Silicon monolithic IC System power LSI for Blu-ray/DVD (1) Built-in 3.3V output synchronized rectifier type Step-Down DC-to-DC converter (2) Built-in 1.0V/1.2V output selectable rectifier type Step-Down DC-to-DC converter (3) Built-in synchronized rectifier type Step-Up DC-to-DC converter 特 長 (4) Built-in Over-current and short-circuit protection function circuit 特 長 (5) Built-in Error-Amplifier phase pensation (Step-Down only) 特 長 (6) Operational frequency Step-down : 2.0MHz(typ.)、Step-Up : 1.0MHz(typ.) 特 長 (7) Built-in Reset function circuit and Current Switch 特 長 (8) Built-in Shut down function circuit ○ABSOLUTE MAXIMUM RATINGS (Ta=25℃) Parameter PVCC1 terminal voltage PVCC2 terminal voltage AVCC terminal voltage Input terminal voltage (※1) DCSW1 terminal output current (※2) DCSW2 terminal output current (※2) DCSW3 terminal output current (※2) VDCO3 terminal output current (※2) CSWO terminal output current XRESET terminal input current Power dissipation (※3) Ambient temperature of operation Ambient temperature of preservation (※1) SELDCO1、SELSQ、CSWON、ENUP、XENDWN、SELRST (※2) Containing the ripple current. (※3) While mounted on FR4 Glass-epo. 4 layer Board (5505mm2) Symbol PVCC1 PVCC2 AVCC VIN IDCSW1 IDCSW2 IDCSW3 IVDCO3 ICSWO IXRESET Pd Topr Tstg Rating -0.3～6.5 -0.3～6.5 -0.3～6.5 -0.3～VCC+0.3 1.0 1.0 0.8 0.8 0.2 10 4.56 -30～+70 -55～+150 Unit V V V V A A A A A m A W ℃ ℃ ○Operation condition(Ta=25℃) Parameter PVCC1 terminal voltage PVCC2 terminal voltage AVCC terminal voltage VDCO1 output current VDCO2 output current VDCO3 output current VDCO3 output voltage setting range CSWO output current This product is no antiradiation design Symbol PVCC1 PVCC2 AVCC IDCO1 IDCO2 IDCO3 VDCO3 ICSWO MIN. 4.5 4.5 4.5 7.0 - TYP. 5.0 5.0 5.0 - MAX. 5.5 5.5 5.5 0.8 0.8 0.6 11.0 0.1 Unit V V V A A A V A REV. A Free Datasheet http://../ 2/4 ○ELECTRICAL CHARACTERISTICS （PVCC1=PVCC2=AVCC=5.0V,Ta=25℃ unless...