Datasheet Synchronous Buck Converter with Integrated FET BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN General Description Key Specifications The (BD9106FVM, BD9107FVM, BD9109FVM, Input Voltage Range BD9110NV, and BD9120HFN) are ROHMs high BD9120HFN: 2.7V to 4.5V efficiency step-down switching regulators designed to BD9106FVM, BD9107FVM: 4.0V to 5.5V produce a voltage as low as 1V from a supply voltage of BD9109FVM, BD9110NV: 4.5V to 5.5V 3.3V or 5.0V. It offers high efficiency by using Output Voltage Range synchronous switches and provides fast transient BD9109FVM: 3.30V 2% response to sudden load changes by implementing BD9120HFN: 1.0V to 1.5V current mode control. BD9107FVM: 1.0V to 1.8V BD9106FVM, BD9110NV: 1.0V to 2.5V Output Current Features BD9106FVM, BD9109FVM, Fast Transient Response because of Current Mode BD9120HFN: 0.8A(Max) Control System BD9107FVM: 1.2A(Max) High Efficiency for All Load Ranges because of BD9110NV: 2.0A(Max) Synchronous Switches (Nch and Pch FET) and TM Switching Frequency: 1MHz(Typ) SLLM (Simple Light Load Mode) FET ON-Resistance Soft-Start Function Pch(Typ) / Nch(Typ) Thermal Shutdown and ULVO Functions BD9110NV: 200m / 150m Short-Circuit Protection with Time Delay Function BD9106FVM, BD9107FVM: 350m / 250m Shutdown Function BD9120HFN, BD9109FVM: 350m / 250m Standby Current: 0A(Typ) Application Operating Temperature Range Power Supply for LSI including DSP, Microcomputer BD9110NV: -25C to +105C and ASIC BD9120HFN, BD9106FVM: -25C to +85C BD9107FVM, BD9109FVM: -25C to +85C Packages W(Typ) x D(Typ) x H(Max) Typical Application Circuit CIN L V CC VCC,PVCC EN SW V OUT VOUT C O R 2 HSON8 MSOP8 2.90mm x 3.00mm x 0.60mm 2.90mm x 4.00mm x 0.90mm ITH GND,PGND R 1 R ITH CITH Figure 1. Typical Application Circuit SON008V5060 5.00mm x 6.00mm x 1.00mm Product structure Silicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0J3J0AJ00090-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/46 TSZ22111 14 001 02.Oct.2014 Rev.003 Datasheet BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN Pin Configuration (Top View) (Top View) 1 ADJ VCC 8 1 VOUT VCC 8 2 ITH ITH 2 PVCC 7 PVCC 7 3 EN SW 6 EN SW 3 6 4 GND PGND 5 GND PGND 4 5 Figure 3. BD9109FVM Figure 2. BD9106FVM, BD9107FVM (Top View) (Top View) 1 ADJ VCC 8 ADJ 1 8 EN 2 ITH PVCC 7 VCC 2 7 PVCC 3 EN 6 SW 4 GND PGND 5 ITH 3 6 SW GND 4 5 PGND Figure 5. BD9120HFN Figure 4. BD9110NV Pin Description BD9106FVM, BD9107FVM, BD9109FVM Pin No. Pin Name Function 1 ADJ/VOUT Output voltage detection pin / ADJ for BD9106 07FVM 2 ITH GmAmp output pin/connected to phase compensation capacitor 3 EN Enable pin(active high) 4 GND Ground pin 5 PGND Power switch ground pin 6 SW Power switch node 7 PVCC Power switch supply pin 8 VCC Power supply input pin BD9110NV Pin No. Pin Name Function 1 ADJ Output voltage detection pin 2 VCC Power supply input pin 3 ITH GmAmp output pin/connected to phase compensation capacitor 4 GND Ground pin 5 PGND Power switch ground pin 6 SW Power switch node 7 PVCC Power switch supply pin 8 EN Enable pin(active high) BD9120HFN Pin No. Pin Name Function 1 ADJ Output voltage detection pin 2 ITH GmAmp output pin/connected to phase compensation capacitor 3 EN Enable pin(active high) 4 GND Ground pin 5 PGND Power switch ground pin 6 SW Power switch node 7 PVCC Power switch supply pin 8 VCC Power supply input pin www.rohm.com TSZ02201-0J3J0AJ00090-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/46 TSZ22111 15 001 02.Oct.2014 Rev.003