{"product_id":"a-7-to-60-v-input-buck-converter-a-wide-range-dc-dc-step-down-module","title":"A 7 to 60 V Input Buck Converter: A Wide-Range DC-DC Step-Down Module","description":"\u003cp\u003e\u003cspan\u003eThis compact buck converter module accepts input voltages from 7 V to 60 V DC and steps them down to either 5.0 or 3.3 V. The output voltage is selectable via a jumper.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe heart of the design is the \u003ca href=\"https:\/\/www.rohm.com\/products\/power-management\/switching-regulators\/buck-step-down\/integrated-fet-nonsynchronous\/bd9g500uefj-la-product\" target=\"_blank\"\u003eROHM BD9G500UEFJ-LA\u003c\/a\u003e, an 8-pin SMD buck converter IC with an integrated high-side power MOSFET featuring low on-resistance. The device operates in current-mode control and can supply continuous output currents up to 5 A, with a nominal rating of 2 A for typical use.\u003c\/p\u003e\n\u003cp\u003eThe BD9G500UEFJ-LA operates at a fixed switching frequency of 200 kHz, set by the RT resistor. Current-mode control provides inherently fast transient response and simplifies the phase-compensation network. The output voltage is programmed by the feedback resistor divider (R3\/R4 for 5 V, R3\/R5 for 3.3 V) connected to the FB pin, and the appropriate setting is selected by placing the shunt jumper on J1 (5 V) or J2 (3.3 V).\u003c\/p\u003e\n\u003cp\u003eThe module includes a Schottky catch diode (D1, RB088BM100TL), a 33 µH power inductor (L1), and a bulk output capacitor (C5, 220 µF\/50 V). Input decoupling is provided by C3 and C4 (10 µF\/100 V ceramic, 1210 package), with additional high-frequency filtering on the boot and bias rails. Screw terminal connectors (CN1, CN2) are used for both the input supply and the output load connection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eSpecs and Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput supply range: 7 to 60 V DC (76 V absolute maximum)\u003c\/li\u003e\n\u003cli\u003eOutput voltage: 5.0 V or 3.3 V, selectable via jumper (J1\/J2)\u003c\/li\u003e\n\u003cli\u003eOutput current: 2 A nominal, 5 A maximum\u003c\/li\u003e\n\u003cli\u003eSwitching frequency: 200 kHz\u003c\/li\u003e\n\u003cli\u003eControl architecture: current-mode\u003c\/li\u003e\n\u003cli\u003eSoft-start function to limit inrush current and output overshoot\u003c\/li\u003e\n\u003cli\u003eOver-current protection (OCP): auto-restart after 4 consecutive events\u003c\/li\u003e\n\u003cli\u003eUnder-voltage lockout (UVLO): 6.4 V threshold, 200 mV hysteresis\u003c\/li\u003e\n\u003cli\u003eOver-voltage protection (OVP) with integrated discharge MOSFET\u003c\/li\u003e\n\u003cli\u003eThermal shutdown (TSD): 175°C, 25°C hysteresis\u003c\/li\u003e\n\u003cli\u003eEnable control via EN pin (2.5 V\u003csub\u003eon\u003c\/sub\u003e, 0.4 V\u003csub\u003eoff\u003c\/sub\u003e)\u003c\/li\u003e\n\u003cli\u003ePCB dimensions: 53.34 × 32.86 mm\u003c\/li\u003e\n\u003cli\u003eMounting holes: 4 × 2.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47247562440876,"sku":"G188","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/G188.jpg?v=1789821590","url":"https:\/\/dotfry.com\/products\/a-7-to-60-v-input-buck-converter-a-wide-range-dc-dc-step-down-module","provider":"dotfry","version":"1.0","type":"link"}