RP602x Series 1.5 A PWM/VFM Buck-Boost DC/DC Converter with Synchronous Rectifier No. EA-353-190507 OVERVIEW The RP602x is a 6.5 V (Max. rating) buck-boost DC/DC converter with synchronous rectifier. This device is ideally suited for industrial or OA equipment that require constant voltage even when low-input voltage (Min. 2.3 V). Since operating with switching frequency of 2.6 MHz, this device can realize a high-speed response with a small coil and maintain a high-efficiency at low input voltage. KEY BENEFITS Realize a high-efficiency at low input voltage. Provide output voltage of 2.7 to 4.2 V corresponding to input voltage of 2.3 to 5.5 V. KEYSPECIFICATIONS TYPICAL CHARACTERISTICS Input Voltage Range:2.3 V to 5.5 V Output Voltage Range:2.7 V to 4.2 V (0.1V step) Output Voltage Accuracy :1.5% Line Regulation: Typ. 0.5%, PWM mode Load Regulation: Typ. 0.1%, (I = 0 to 500 mA, PWM mode) OUT Maximum Output Current: Typ. 1.5 A, (PVIN = 3 V, VOUT = 3.3 V) Maximum Burst Current: Typ. 2.7 A, (PVIN=3 V, VOUT=3.3 V, Duty=10%, t=2.0 ms) Efficiency Characterisitcs (RP602Z330x, MODE = H) Overcurrent Limit Protection: Typ. 4.2 A TYPICAL APPLICATION Oscillator Frequency: Typ. 2.6 MHz Control MODE Built-in Driver ON Resistance: BULX L Typ. Pch. 80 m, Nch. 80 m Control CE BOLX Operating Quiescent Current: Typ. 27.5 A, RP602x PV IN (VFM mode, Non-switching) Load C V IN OUT UVLO Detector Threshold: Typ. 2.0 V V FB AVIN Soft-start Time: Typ. 1.0 ms PGND GND COUT Thermal Shutdown Temperature:Typ.150C Protection Feature: Overvoltage, Overcurrent OPTIONAL FUNCTION PACKAGE RP602Z RP602K The following functions are user-selectable options. Auto-discharge Latch Reset Code Function Protection Protection A/E Yes Yes No B/F No Yes No C/G Yes No Yes WLCSP-20-P1 DFN(PLP)2730-12 D/H No No Yes 2.305 mm x 1.700 mm 2.7mm3.0mm APPLICATIONS Power source for portable equipment such as laptops, PDAs, DSCs, cellular phones, and smartphones Power source for Li-ion battery-used equipment 1 RP602x No. JA-353-190507 SELECTION GUIDE Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free RP602Zxxx -E2-F WLCSP-20-P1 5,000 pcs Yes Yes RP602Kxxx -TR DFN(PLP)2730-12 5,000 pcs Yes Yes (1) xxx: Specify the set output voltage (VSET) within the range of 2.7 V to 4.2 V in 0.1 V steps. : Specify the combination of the auto-discharge option and the protection function option. Auto-discharge Latch-type Reset-type Short-circuit Symbol Function Protection Protection Protection A Yes Yes No Yes B No Yes No Yes C Yes No Yes Yes D No No Yes Yes : Specify the combination of the auto-discharge option and the protection function option. Auto-discharge Latch-type Reset-type Short-circuit Symbol Function Protection Protection Protection E Yes Yes No Yes F No Yes No Yes G Yes No Yes Yes H No No Yes Yes (1) 0.05 V step is also available as a custom code. 2