XDL604B75D82-Q Torex Semiconductor

XDL603/XDL604 Series ETR44003-002 18V Operation 500mA Inductor Built-in Step-down micro DC/DC Converter AEC-Q100 Grade2 GENERAL DESCRIPTION The XDL603/XDL604 series is an ultra compact step-down DC / DC converter that integrates a coil and a control IC in one tiny package. By adding a ceramic capacitor for input / output and a resistor for output voltage setting to external parts, a power supply circuit of up to 500mA can be created. An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring. XDL603/XDL604 series has operating voltage range of 3.0V~18.0V and it can support 500mA as an output current with high- efficiency. They use synchronous rectification at an operating frequency of 2.2MHz. The output voltage can be set to a value from 1.0V to 5.0V using external resistors. They have a fixed internal soft start time which is 1.0ms(TYP.), additionally the time can be extended by using an external resistor and capacitor.The output state can be monitored using the power good function. Over current protection. short-circuit protection and thermal shutdown are embedded and they secure a safety operation even with a short-circuit. The XDL603/XD604 series employ the wettable flank plated packaging. This provides a visual indicator of solderability and lowers the inspection time. APPLICATIONS FEATURES Input Voltage Range : 3.0V ~ 18.0V (Absolute Max 20V) Automotive Body Control Output Voltage Range 1.0V ~ 5.0V Automotive Infotainment FB Voltage : 0.75V 1.5% Automotive accessories Oscillation Frequency : 2.2MHz Drive recorder Output Current : 500mA Car-mounted camera Quiescent Current 13.5A (XDL604) ETC Control Methods : PWM control (XDL603) Industrial Equipment PWM/PFM Auto (XDL604) Efficiency 81% 12V 5V, 300mA Function : Soft-start External settings Power good Protection Function Over Current Protection : - Automatic recovery (B Type) - Integral Latch (A Type) Thermal Shutdown UVLO Output Capacitor : Ceramic Capacitor Operating Ambient Temperature : -40 ~ 105 Packages : DFN3625-11B (Wettable Flank) Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL APPLICATION TYPICAL PERFORMANCE CHARACTERISTICS XDL603x75D/XDL604x75D (V =12V, V =5V) IN OUT C =2.2F(CGA4J3X7R1E225K125AB), IN C =10F2 (CGA5L1X7R1C106K160AC) L 100 90 80 70 60 50 40 30 XDL603 x75D 20 10 XDL604 x75D 0 0.1 1 10 100 Output Current :I mA OUT 1/28 Efficiency :EFFI % XDL603/XDL604 Series BLOCK DIAGRAM L1 L2 L V IN Current LocalReg SENSE each Chip CurrentLimit EN/SS Current circuit Enable Current PFM feed High (XDL604 Limit back Only) Side Buffer Gate Under CLAMP Voltage Low Lock Out Side Buffer Thermal each Shutdown circuit Operation Enable Vref + Soft Start Err Amp + PWM/PFM - FB ControlLOGIC - PWM PG Comparator + Ramp OSC GND - Wave Power Good Comparator * Diodes inside the circuit are an ESD protection diodes and a parasitic diode. 2/28