Datasheet Load Switch ICs 2.0A Current Load Switch ICs for Portable Equipment BD6520F BD6522F General Description Key Specifications BD6520F and BD6522F are power management Input Voltage Range: 3.0V to 5.5V switches (N-Channel Power MOFSET) with an ON- ON-Resistance: Resistance o f 50m (Typ). An internal charge pump R (at V = 5V BD6520F, BD6522F) 50m (Typ) ON1 DD drives the gate of the N-Channel Power MOSFET. Also, R (at V = 3V BD6520F) 60m (Typ) ON2 DD an external capacitor can be connected to the soft start R (at V = 3.3V BD6522F) 60m (Typ) ON2 DD control terminal, thus achieving reduction of the inrush Continuous Current: 2.0 A current to the load capacitor during turn on. Operating Temperature Range: -25C to +85C Furthermore, these ICs hav eundervoltage lockout, thermal shutdown and dias charge circuit for the Package W (Typ) D (Typ) H (Max) capacitive load at switch OFF. Features Low ON-Resistance (50m, Typ) NMOS Switch Maximum Output Current: 2A Discharge Circuit Soft Start Control Undervoltage Lockout (UVLO) Thermal Shutdown (Output OFF Latching) Reverse Current Flow Blocking at Switch OFF (Only in BD6522F) Applications SOP8 Notebook PCs 5.00mm x 6.20mm x 1.71mm PC Peripheral Devices Typical Application Circuit BD6520F Power Supply VDDA OUTA 1F Load OUTB VDDB Css SSCTL OUTC ON/OFF CTRL VSS Lineup Reverse Current Flow Orderable Part OUT Rise Time OUT Fall Time Package Blocking at Switch OFF Number 1000s 3s - SOP8 Reel of 2500 BD6520F-E2 1000s 4s SOP8 Reel of 2500 BD6522F-E2 Product structureSilicon monolithic integrated circuit This product has not designed protection against radioactive rays www.rohm.com TSZ02201-0E3E0H300250-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/28 TSZ2211114001 21.Aug.2014 Rev.002 BD6520F BD6522F Block Diagrams (BD6520F) OUTA VDDA 1 8 OUTB VDDB 2 7 Oscillator Charge SSCTL OUTC 3 6 Pump UVLO Band Thermal S Q Gap Shutdown FF R CTRL 4 VSS 5 Figure 1. Block Diagram (BD6520F) (BD6522F) VDDA OUTA 1 8 VDDB OUTB 2 7 Oscillator Charge SSCTL 3 Pump UVLO DISC Band Thermal S Q 6 Gap Shutdown FF R CTRL 4 VSS 5 Figure 2. Block Diagram (BD6522F) www.rohm.com TSZ02201-0E3E0H300250-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/28 TSZ2211115001 21.Aug.2014 Rev.002