BD9106FVM-LBTR ROHM

Datasheet Synchronous Buck Converter Integrated FET BD9106FVM-LB General Description Key Specifications This is the product guarantees long time support in Input Voltage Range: 4.0V to 5.5V Industrial market. Output Voltage Range: 1.0V to 2.5V Output Current: 0.8A(Max) ROHMs high efficiency step-down switching regulator Switching Frequency: 1MHz(Typ) (BD9106FVM-LB) is a power supply designed to Pch FET On Resistance: 350m(Typ) produce a low voltage including 1 volts from 5 volts Nch FET On Resistance: 250m(Typ) power supply line. Offers high efficiency with our original Standby Current: 0A (Typ) pulse skip control technology and synchronous rectifier. Operating Temperature Range: -25C to +85C Employs a current mode control system to provide faster transient response to sudden change in load. Package W(Typ) x D(Typ) x H(Max) MSOP8 2.90mm x4.00mm x 0.90mm Features Long Time Support Product for Industrial Applications. Fast Transient Response with Current Mode PWM Control System. Highly Efficiency with Synchronous Rectifier TM (Nch/Pch FET) and SLLM (Simple Light Load Mode) Soft-Start Function. Thermal Protection and ULVO Functions. Short-Current Protection Circuit with Time Delay Function. Shutdown Function Applications Industrial Equipment MSOP8 Power Supply for LSI including DSP, Micro computer and ASIC Secondary Power Supply Typical Application Circuit V CC Cin L V ,PV CC CC EN SW V OUT ITH C O ADJ GND,PGND R ITH C ITH Figure 1. Typical Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0J4J0AJ00590-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/20 TSZ22111 14 001 21.Feb.2014 Rev.002BD9106FVM-LB Pin Configuration (Top View) 1 ADJ V 8 CC 2 ITH PV 7 CC 3 EN SW 6 4 GND PGND 5 Figure 2. Pin Configuration Pin Description Pin No. Pin Name Function 1 ADJ Output voltage adjust pin 2 ITH GmAmp output pin/Connected phase compensation capacitor 3 EN Enable pin(Active High) 4 GND Ground 5 PGND Nch FET source pin 6 SW Pch/Nch FET drain output pin 7 PV Pch FET source pin CC 8 V V power supply input pin CC CC Block Diagram EN 3 V CC 8 V REF 7 PV CC Current Comp. Current R Q Sense/ Protect Gm Amp. S SLOPE CLK + 6 OSC V SW CC Driver UVLO Logic PGND Soft 5 Start TSD 4 GND 1 2 ADJ ITH Figure 3. Block Diagram www.rohm.com TSZ02201-0J4J0AJ00590-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/20 TSZ22111 15 001 21.Feb.2014 Rev.002