SC3203SETRC Semtech

SC3203 3A EcoSpeed Step-Down Regulator with Power Save POWER MANAGEMENT Features Description Input voltage 9V to 16V The SC3203 is an integrated, synchronous 3A EcoSpeed Programmable VIN UVLO step-down regulator. It incorporates Semtechs advanced, Output voltage adjustable from 0.75V to 7.5V patented adaptive on-time architecture to achieve best- Output current Up to 3A in-class dynamic performance using point-of-load appli- Internal reference + 2% cations. The input voltage range is 9V to 16V, and the Supports ceramic capacitors output voltage is adjustable from 0.75V to 7.5V. The device Low component count features an internal LDO and automatic PSAVE mode for Power good output (open-drain) high efficiency across the output load range. Low RDS mosfets ON 65m low-side/100m high-side Switching frequency is internally programmed to 500kHz. ENABLE input Semtechs adaptive on-time control provides pseudo-xfi ed Programmable VIN UVLO and hysteresis frequency operation in continuous conduction combined VIN Under-Voltage Lock Out with excellent transient performance. 500kHz switching frequency Adaptive on-time control: Additional features include cycle-by-cycle current limit, Excellent transient response soft start, output over voltage and over temperature pro- Pseudo-xfi ed frequency during CCM tection, and automatic fault recovery. The open-drain Fault protection features: PGOOD pin provides output status. Over-current/Over-voltage/Under-voltage Over-temperature The device is available in a lead-free SOIC8-EP5 package. Automatic Restart (Hiccup) Internal soft-start Applications Start-up into pre-bias output Power Save and Smart Power Save Consumer Electronics, DTV and Set-top Boxes Internal LDO for bias voltage Networking Equipment, Embedded Systems SOIC8-EP5 lead-free package Medical Equipment, Office Automation WEEE and RoHS compliant and halogen-free Instrumentation, Portable Systems Point of Load Converters Typical Application Circuit 3.3V R SC3203 P G O O D 10n P G O O D P G O O D B S T L V O U T E nable E N LX C T O P V IN V IN 49.9 B Y P V FB C IN R T O P C O U T P A D A G N D R B O T 1 Rev 2.1 2015 Semtech Corporation 1SC3203 Pin Configuration Ordering Information (1)(2) Device Package TOP VIEW SC3203SETRC SOIC8-EP5 1 8 E N V FB SC3203EVB Evaluation Board Notes: B S T 2 7 P G O O D (1) Available in tape and reel only. A reel contains 3,000 devices. (2) Lead-free packaging only. Device is WEEE and RoHS compliant and halogen-free. 3 6 LX B Y P V IN 4 5 A G N D P G N D P A D SOIC8-EP5 Marking Information Top M ark S C 3203 yyw w xxxxx yyww = Date code xxxxx = Lot code 2