R5528Z SERIES Overvoltage Protector IC with Reverse Current Protection NO.EA-313-181010 OUTLINE The R5528Z001A is a CMOS-based overvoltage protector IC with reverse current protection that use an NMOS pass transistor to achieve ultra-low on resistance (Typ. 54m). Overvoltage protection threshold is as high as 6.8V3%. Also, continuous current capability is as high as 3A. Internally, the R5528Z001A consists of a reverse current protection circuit, a soft-start circuit, a startup debounce circuit, an undervoltage lockout (UVLO) circuit, and a thermal shutdown circuit. The R5528Z001A is offered in a small and thin WLCSP-9-P1 package which achieves the smallest possible footprint solution on boards where area is limited. FEATURES Input Voltage Range (V ) 2.3V to 36V IN Output Current (I ) Max. DC 3A OUT Switch On Resistance (R ) 54m (V = 5.0V, I = 100A) ON IN OUT OVP Threshold Accuracy 6.8V3% PG Function Reverse Current Protection Circuit Soft-start Circuit Startup Debounce Circuit 15ms Thermal Shutdown Circuit Package WLCSP-9-P1 ( 1.27 mm x 1.27 mm x 0.64 mm ) APPLICATIONS Smartphones, Tablet PCs Portable devices 1 R5528Z NO.EA-313-181010 BLOCK DIAGRAMS V V OUT IN Soft GATE DRIVER Start CHARGE PUMP PG 3V TIMING AND VREF CONTROL LOGIC OVLO EN ENB Thermal OK Shutdown GND Figure 1. R5528Z001A SELECTION GUIDE Product Name Package Quantity per Reel Pb Free Halogen Free R5528Z001A-E2-F WLCSP-9-P1 5,000pcs Yes Yes PIN CONFIGULATIONS CB A A B C 3 3 2 2 1 1 Figure 2. Top View Figure 3. Bottom View 2