RP604x Series Ultra-low Quiescent Current (I = 0.3 A), 300 mA, Buck-Boost Q DC/DC Converter No. EA-415-210709 OVERVIEW The RP604x is a buck-boost converter featuring a minimum supply current and a high efficiency at low-load. The device operates at the low operating quiescent current (I = 0.3 A) to make the most of battery life for the battery driver Q operated intermittently. KEY BENEFITS The low supply current (IQ = 0.3 A) can achieve making battery life longer and batterys size-reduction. Wide range of input voltage (1.8 V to 5.5 V) can support for every battery from a coin-type battery to a USB port. Selectable package: WLCSP-20-P2 or DFN(PLP)2730-12 KEY SPECIFICATIONS TYPICAL CHARACTERISTICS Input Voltage: 1.8 V to 5.5 V Output Voltage: 1.6 V to 5.2 V, 0.1 V step Output Voltage Accuracy: 1.5% Maximum Output Current: 300 mA at Buck Built-in Driver On-resistance (RP604Z, V = 3.6 V): IN PMOS = Typ.0.12 , NMOS = Typ. 0.12 Operating Quiescent Current (I ): 0.3 A Q Standby Current: 0.01 A Protection Features: UVLO, OVP, LX Peak Current, V = 3.3 V OUT and Thermal Shutdown PACKAGES OPTIONAL FUNCTIONS The auto-discharge function and the set output voltage (VSET) are user-selectable options. Auto-discharge Product Name VSET Function RP604xxx1A Disable WLCSP-20-P2 DFN(PLP)2730-12 1.6 V to 5.2 V (1) (1) 1.71 x 2.315 x 0.40 mm 2.70 x 3.00 x 0.6 mm (0.1 V step) RP604xxx1B Enable (1) (1) maximum dimension maximum dimension APPLICATIONS Wearable Appliances: SmartWatch, SmartBand, Healthcare Li-ion/Coin Battery-used Equipment Low-power Wireless Communication Equipment: Bluetooth Low Energy, ZigBee, WiSunm, ANT Low-power Devices for CPU, Memory, Sensor Device, Energy Harvesting 1 RP604x No. EA-415-210709 SELECTION GUIDE (1) The set output voltage, the auto-discharge function and the package are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free RP604Zxx1 -E2-F WLCSP20P2 5,000 pcs Yes Yes RP604Kxx1 -TR DFN(PLP)2730-12 5,000 pcs Yes Yes xx: Specify the set output voltage (V ) within the range of 1.6 V (16) to 5.2 V (52) in 0.1 V steps. SET : Specify the auto-discharge function. Auto-discharge Version V SET Function A Disable 1.6 V to 5.2 V B Enable BLOCK DIAGRAM PVIN BULX BOLX VOUT AVIN VFB PGND CE CE Buck/Boost CTRL UVLO TSHUT AGND RP604xxx1A/ RP604xxx1B Block Diagram (1) Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor. 2