Datasheet 2.7V to 5.5V , 2.0A 1ch Synchronous Buck Converter with Integrated FET BD9130NV General Description Key Specifications BD9130NV is ROHMs high efficiency step-down Input Voltage Range: 2.7V to 5.5V switching regulator designed to provide a voltage as Output Voltage Range: 1.0V to 2.5V low as 1V from a supply voltage of 5.5V/3.3V. It offers Output Current: 2.0A (Max) high efficiency by using pulse skip control technology Switching Frequency: 1MHz(Typ) and synchronous switches, and provides fast transient Pch FET ON-Resistance: 200m(Typ) response to sudden load changes by implementing Nch FET ON-Resistance: 160m(Typ) current mode control. Standby Current: 0A (Typ) Operating Temperature Range: -25C to +105C Features Fast Transient Response because of Current Mode Package W(Typ) x D(Typ) x H(Max) PWM Control System High Efficiency for All Load Ranges because of TM Synchronous Switches (Nch/Pch FET) and SLLM (Simple Light Load Mode) Soft-Start Function Thermal Shutdown and UVLO Functions Short-Circuit Protection with Time Delay Function Shutdown Function Applications Power Supply for LSI including DSP, Microcomputer and ASIC SON008V5060 5.00mm x 6.00mm x 1.00mm Typical Application Circuit CIN L VCC VCC,PVCC EN SW VOUT ADJ R2 CO ITH GND,PGND R1 RITH CITH Figure 1. Typical Application Circuit Product structure Silicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0J3J0AJ00130-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/21 TSZ22111 14 001 02.Oct.2014 Rev.002 BD9130NV Pin Configuration (TOP VIEW) ADJ 1 8 EN VCC 2 7 PVCC ITH 3 6 SW GND 4 5 PGND Figure 2. Pin Configuration Pin Description Pin No. Pin name Pin 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) Block Diagram VCC PVCC VCC R C ITH ITH R 2 R 1 Figure 3. Block Diagram www.rohm.com TSZ02201-0J3J0AJ00130-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/21 TSZ22111 15 001 02.Oct.2014 Rev.002