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BD9G341AEFJ-LB Datasheet(PDF) 2 Page - Rohm |
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BD9G341AEFJ-LB Datasheet(HTML) 2 Page - Rohm |
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2 / 30 page  2/26 © 2015 ROHM Co., Ltd. All rights reserved. www.rohm.com TSZ22111 • 15 • 001 BD9G341AEFJ-LB TSZ02201-0Q3Q0AJ00500-1-2 28.Sep.2016 Rev.003 Pin Configuration LX 1 GND 2 VC 3 6 EN 8 VCC FB 4 5 RT 7 BST Thermal Pad Pin Description Pin No. Pin Name Description 1 LX Switching node. It should be connected as near as possible to the schottky barrier diode, and inductor. 2 GND Ground pin. GND pattern is kept from the current line of input capacitor to output capacitor. 3 VC The output of the internal error amplifier. The phase compensation implementation is connected between this pin to GND. 4 FB Voltage feedback pin. This pin is the error-amp input with the DC voltage is set at 1.0V with feed-back operation. 5 RT The internal oscillator frequency set pin. The internal oscillator is set with a single resistor connected between this pin and the GND pin. Recommended frequency range is 50kHz to 750kHz 6 EN Shutdown pin. If the voltage of this pin is below 1.3V,the regulator will be in a low power state. If the voltage of this pin is between 1.3V and 2.4V. The IC will be in standby mode. If the voltage of this pin is above 2.6V, the regulator is operational. An external voltage divider can be used to set under voltage threshold. If this pin is left open circuit. when converter is operating. This pin output 10uA source current. If this pin is left open circuit, a 10uA pull up current source configures the regulator fully operational. 7 BST Boost input for bootstrap capacitor The external capacitor is required between the BST and the Lx pin. A 0.1uF ceramic capacitor is recommended. 8 VCC Input supply voltage pin. - Thermal Pad Connect to GND. Figure 2.Pin Configuration (TOP VIEW) |
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