Single-chip Type with built-in FET Switching Regulator Series Flexible Step-down Switching Regulators with Built-in Power MOSFET No.12027ECT35 BD9006F/HFP, BD9007F/HFP, BD9009HFP Overview The high-accuracy frequency flexible step-down switching regulator is a switching regulator with built-in POWER MOS FET, which withstands high pressure. The operational frequency is freely configurable with external resistance. It features a wide input voltage range (7V~35V) and a high frequency accuracy of 5% (BD9006F/HFP,BD9009HFP, f=200~500kHz), Furthermore, an external synchronization input pin enables synchronous operation with external clock. Features 1) Minimal external components 2) Wide input voltage range: 7V35V 3) Frequency voltage accuracy: 5%(BD9006F/HFP,BD9009HFP, f=200500kHz) 20%(BD9007F/HFP) 4) Built-in P-ch POWER MOS FET 5) Output voltage setting enabled with external resistor: 0.8VVIN 6) Reference voltage accuracy: 0.8V2% 7) Wide operating temperature range: -40+105 8) Low dropout: 100% ON duty cycle 9) Standby mode supply current: 0A (Typ.) 10) Oscillation frequency variable with external resistor: 50500kHz 11) External synchronization enabled 12) Soft start function: soft start time fixed to 5ms (Typ.) 13) Built-in overcurrent protection circuit 14) Built-in thermal shutdown protection circuit 15) High-power HRP7 package mounted (BD9006HFP,BD9007HFP,BD9009HFP) 16) Compact SOP8 package mounted (BD9006F,BD9007F) Applications All fields of industrial equipment, such as Flat TV, printer, DVD, car audio, car navigation, and communication such as ETC, AV, and OA. Product lineup Item BD9006F/HFP BD9007F/HFP BD9009HFP Output Current 2A 2A 4A Input Range 7V35V 7V35V 7V35V Oscillation Frequency Range 50500kHz 50500kHz 50500kHz Oscillation Frequency Accuracy 5% 20% 5% External Synchronous Function Provided Provided Provided Standby Function Provided Provided Provided Operating Temperature -40+105 -40+105 -40+105 Package SOP8/HRP7 SOP8/HRP7 HRP7 www.rohm.com 2012.03 - Rev.C 1/18 2012 ROHM Co., Ltd. All rights reserved. BD9006F/HFP, BD9007F/HFP, BD9009HFP Technical Note o Absolute Maximum Ratings (Ta=25 C) Parameter Symbol Limits Unit Power Supply Voltage VIN 36 V Output Switch Pin Voltage VSW VIN V 1 BD9006F/HFP,BD9007F/HFP 2 Output Switch Current ISW A 1 BD9009HFP 4 EN/SYNC Pin Voltage VEN/SYNC VIN V RT, FB, INV Pin Voltage VRT,VFB,VINV 7 2 HRP7 5.5 W Power Dissipation Pd 3 SOP8 0.69 W Operating Temperature Range Topr -40+105 Tstg Storage Temperature Range -55+150 Tjmax Maximum Junction Temperature 150 1 Should not exceed Pd-value. 3 2 Reduce by 44mW/ over 25,when mounted on 2-layerPCB of 70701.6mm 2 (PCB incorporates thermal via. Copper foil area on the reverse side of PCB: 10.510.5mm 2 Copper foil area on the reverse side of PCB: 7070mm 3 3 Reduce by 5.52mW/ over 25,when mounted on 2-layer PCB of 70701.6mm Recommended Operating Range Parameter BD9006F/HFP BD9007F/HFP BD9009HFP Unit Operating Power Supply Voltage 735 735 735 V Output Switch Current 2 2 4 A Output Voltage (min pulse width) 250 250 360 ns Oscillation Frequency 50500 50500 50500 kHz Oscillation Frequency set Resistance 27360 27360 27360 k Possible Operating Range Parameter BD9006F/HFP BD9007F/HFP BD9009HFP Unit Operating Power Supply Voltage 535 535 535 V Electrical Characteristics BD9006F/HFP (Unless otherwise specified, Ta=25, VIN=13.2V, VEN/SYNC=5V) Spec Values Parameter Symbol Unit Conditions Min. Typ. Max. Standby Circuit Current ISTB - 0 10 AVEN/SYNC=0V Circuit Current IQ - 4 6.5 mA IO=0A,RT=51k,VINV=0.7V SW Block POWER MOS FET ON Resistance RON - 0.3 0.6 ISW=50mA Operating Output Current IOLIMIT 2 4 - A Of Overcurrent Protection Output Leak Current IOLEAK - 0 30 AVIN=35V, VEN/SYNC=0V Error Amp Block Reference Voltage 1 VREF1 0.784 0.800 0.816 V VFB=VINV Reference Voltage 2 VREF2 0.780 0.800 0.820 V VIN=1016V,VFB=VINV Reference Voltage Input Regulation VREF - 0.5 - % Input Bias Current IB -1 - - AVINV=0.6V Maximum FB Voltage VFBH 2.2 2.4 - VVINV=0V Minimum FB Voltage VFBL - 0.5 0.6 V VINV=2V FB Sink Current IFBSINK -0.47 -1.16 -2.45 mAVFB=1V,VINV=1V FB Source Current IFBSOURCE 1 5 15 mAVFB=1V,VINV=0.6V Soft Start Time TSS 3 5 9 mSTa=-40105 Oscillator Block Oscillation Frequency FOSC 285 300 315 kHz VIN=7V,RT=51k Frequency Input Regulation FOSC - 0.5 - %VIN=716V Enable/Sync Input Block Output ON Voltage VENON 2.6 - - VVEN/SYNC Sweep Up,Ta=-40105 Output OFF Voltage VENOFF - - 0.8 VVEN/SYNC Sweep Down,Ta=-40105 Sink Current IEN/SYNC - 35 90 A External Sync Frequency FSYNC 495 500 505 kHzRT=51k,EN/SYNC=500kHz,Duty 50% Not designed to be radiation resistant. www.rohm.com 2012.03 - Rev.C 2/18 2012 ROHM Co., Ltd. All rights reserved.