BD9016KV-ME2 ROHM

Datasheet Switching Regulator with external FET 3.9 to 30V, 2ch Synchronous Rectification Step-Down Controller BD9015KV-M BD9016KV-M General Description Key Specifications The BD9015KV-M and BD9016KV-M are high perfor- Input voltage range: 3.9 V to 30 V mance synchronous rectification switching controllers Output voltage range: 0.8 V to 10 V with wide input range and dual channel output. Accurate voltage reference:1.5%(-40C to +105C) The synchronous rectification method comes with high Switching frequency: 250 kHz to 550 kHz efficiency making controller ideal for eco-designs(low Shutdown current: 0A (Typ) power consumption) of numerous electronics. Operating temperature range: -40C to + 105 C All channels have enable pins, soft start functionality and power good outputs. Startup and shutdown can be Package W (Typ) x D (Typ) x H (Max) controlled independently. VQFP48C 9.00 mm x 9.00 mm x 1.60 mm An integrated PLL circuit can be synchronized to an external 250kHz to 600kHz clock signal. Features N channel MOSFET direct drive Synchronous rectification for increased efficiency Acceptable Low ESR ceramic capacitor at output Integrated PLL circuit for external synchronization 250kHz to 600kHz Current mode control High side MOSFET current sensing Pre-bias functionality VQFP48C Independent ON/OFF control for all channels At Max Duty the oscillation frequency is slowed down to 1/5, reducing the input/output voltage difference. Applications Low voltage and over voltage detection circuit at all Car audio, Car navigation outputs LCDTV, PDPTV, DVD, PC, etc.. When the over voltage is detected, the L-side FET is OFF (BD9015KV-M). The L-side FET is ON (BD9016KV-M). Low side FET is ON (BD9016KV-M) Power good indicator pin (PGOOD) Integrated overcurrent protection with self recovery. AEC-Q100 Qualified Typical Application Circuit 5V/4A BD9015KV/ BD9016KV Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed for protection against radioactive rays www.rohm.com TSZ02201-0T1T0PB00040-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/27 TSZ2211114001 10.DEC.2013 Rev.002DatasheetDatasheet BD9015KV-M BD9016KV-M Pin Configuration (TOP VIEW) Figure 2. Pin Configuration Pin Description Pin No. Symbol Function Pin No. Symbol Function 1 BOOT2 Power supply for OUTH2 driver 25 PGOOD1 Power good output pin 1 2 N.C. Not connected 26 N.C. Not connected 3 CL2 Current detection setting pin 2 27 EN1 Output 1 ON / OFF pin Output 2 ON / OFF pin 4 N.C. Not connected 28 EN2 5 VCCCL2 Power supply for current detection 2 29 N.C. Not connected 6 N.C. Not connected 30 GND Ground pin 7 VCC Power supply pin 31 N.C. Not connected 8 VCCCL1 Power supply for current detection 1 32 N.C. Not connected Oscillation frequency setting / filter 9 N.C. Not connected 33 RT/LPFC connection pin External synchronization select pin 10 CL1 Current detection setting pin 1 34 SEL 11 N.C. Not connected 35 SYNC External synchronization pulse input pin 12 BOOT1 Power supply for OUTH1 driver 36 PGOOD2 Power good output pin 2 13 OUTH1 High side FET gate pin 1 37 N.C. Not connected 14 SW1 High side FET source pin 1 38 SS2 Soft start time setting pin 2 15 DGND1 Low side FET source pin 1 39 COMP2 Error amp output 2 16 OUTL1 Low side FET gate pin 1 40 FB2 Error amp input 2 17 VREG5A REG input for FET driver pin 41 N.C. Not connected 18 N.C. Not connected 42 EXTVCC External power supply input pin 19 N.C. Not connected 43 N.C. Not connected 20 N.C. Not connected 44 VREG5REG output for FET driver pin 21 FB1 Error amp input 1 45 OUTL2 Low side FET gate pin 2 22 COMP1 Error amp output 1 46 DGND2 Low side FET source pin 2 23 SS1 Soft start time setting pin 1 47 SW2 High side FET source pin 2 24 N.C. Not connected 48 OUTH2 High side FET gate pin 2 www .rohm.co.jp TSZ02201-0T1T0PB00040-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/27 TSZ2211115001 10.DEC.2013 Rev.002