SS61

Overview

SS61 is a high efficiency synchronous step-up converter with ultra-low quiescent current. It is capable of delivering at least 2W of power from a low voltage source, i.e. 0.4A at 5V output. It also features a true-shutoff function that disconnects the input from output, during shutdown and output short-circuit conditions. This eliminates the need for an external MOSFET and its control circuitry to disconnect the input from output and provides robust output overload protection. A high switching frequency minimizes solution footprint by allowing the use of tiny and low profile inductors and ceramic capacitors. An internal synchronous MOSFET provides highest efficiency and with a current mode control that is internally compensated, external parts count is reduced to minimal. With the ultra-low Iq feature, SS61 is ideal for solution that requires low standby power and compact board size such as IoT applications.

Feature

◼ Ultra low IQ when No Switching: 1.5μA
◼ 0.8V Startup
◼ 5V/0.4A Output Capability at VIN=3V
◼ Output to Input Reversed Current Protection
◼ Up to 94% Efficiency
◼ Internal Synchronous Rectifier and Output Disconnect
◼ Short-circuit Protection
◼ SOT23-6

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