RP517x Series 0.3 V Ultra-low Output Voltage 300 mA Buck DC/DC Converter No.EA-519-200304 OVERVIEW RP517x is a low-voltage resistance buck DC/DC converter featuring ultra-low 0.3 A quiescent current and 0.3 V output voltage. Suitable for wearable and IoT devices which require long-life batteries and downsizing. KEY BENEFITS Ultra-low consumption current (IQ: 0.3 A) with the VFM control for DC/DC (switching frequency: 1 MHz max.) Suitable for low power devices due to its ultra-low output voltage range from 0.3 V to 1.2 V Suitable for coin batteries and USB ports due to its wide input range from 1.8 V to 5.5 V Selectable 3 packages: WLCSP, DFN and SOT. Suitable for IC cards due to WLCSPs thickness of 0.4 mm and less. KEY SPECIFICATIONS TYPICAL PERFORMANCE CHARACTERISTICS RP517x051x, Ta=25C Output current: 300 mA Output Voltage Range: 0.3 V to 1.2 V (Settable in 0.1 V step) Output Voltage Accuracy: 18 mV Built-in Driver On-resistance (VIN = 3.6 V): Typ. PMOS 0.15 , NMOS 0.15 (RP517Z) Standby Current: 0.01 A TYPICAL APPLICATIONS SELECTION GUIDE V V IN OUT VIN LX Product Name Package Quantity per Reel L RP517x 2.2 H RP517Zxx1 -TR-F WLCSP-8-P1 5,000 pcs VOUT C C IN OUT 10 F 22 F RP517Kxx1 -TR DFN(PLP)2527-10 5,000 pcs GND CE RP517Hxx1 -T1-FE SOT-89-5 1,000 pcs xx: The set output voltage (V ) SET Fixed Output Voltage Type: PACKAGES (unit: mm) 0.3 V (03) to 1.2 V (12) in 0.1 V step : The auto-discharge option Version Auto-discharge Function VSET C No 0.3 V to 1.2 V WLCSP-8-P1 DFN(PLP)2527-10 SOT-89-5 D Yes 1.45 x 1.48 x 0.36 2.7 x 2.5 x 0.6 4.5 x 4.35 x 1.5 APPLICATIONS Wearable equipment such as SmartWatch, SmartBand and Health monitoring Li-ion battery-used equipment, Coin cell-used equipment Low power RF such as Bluetooth Low Energy, Zigbee, WiSun and ANT Low power CPU, Memory, Sensor device and Energy harvester 1 RP517x No.EA-519-200304 SELECTION GUIDE (1) The set output voltage, the auto-discharge function and the packages are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free RP517Zxx1 -TR-F WLCSP8P1 5,000 pcs Yes Yes RP517Kxx1 -TR DFN(PLP)2527-10 5,000 pcs Yes Yes RP517Hxx1 -T1-FE SOT-89-5 1,000 pcs Yes Yes xx: Specify the set output voltage (VSET) (2) Fixed Output Voltage Type : 0.3 V (03) to 1.2 V (12) in 0.1 V step : Select the auto-discharge option Version Auto-discharge Function V SET C No 0.3 V to 1.2 V D Yes (1) Auto-discharge function quickly lowers the output voltage to 0 V by releasing the electrical charge accumulated in the external capacitor, when the chip enable signal is switched from the active mode to the standby mode. (2) The custom specification of 0.05 V step is available. 2