SX1301 Datasheet | SANY

High Efficiency Low Voltage Step-up DC/DC Converter GENERATION DESCRIPTION The SX1301 is a pact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop. It prises of an error amplifier, a ramp generator, a PWM parator, a switch pass element and the driver. It provides stable and high efficient operation over a wide range of load currents without external pensation. The below 1V start-up input voltage makes SX1301 suitable for single battery cell applications. The built-in power transistor is able to provide up to 300m A output current while working under Li-Battery Supply. Besides, it provides extra pin to drive external power devices (NMOS or NPN ) in case higher output current is needed. The output voltage is set with two external resistors. The 500KHz high switching rate reduces the size of external ponents. Besides, the 14μA low quiescent current together with high efficiency maintains long battery lifetime. OREER INFORMATION Features z Low Quiescent (Switch-off) Supply Current: 14μA z Low Start-up Input Voltage: typical 0.8V z High Supply Capability: Deliver 3.3V 100m A with 1Alkaline Cell; 5V 300m A with 1 Li-Cell z Zero Shutdown Mode Supply Current z High efficiency: 92% z Fixed switching frequency: 500KHz z Options for internal or external power switches z Package type: SOT-26, SOT-89-5 APPLICATIONS z MP3, PDA, Electronic z Dictionary, DSC, LCD, RF-Tag, z Portable Devices, Wireless Devices, etc. TYPICAL APPLICATION CIRCUITS (1) Typical Application 1 Alkaline Cell to 3.3V, 100m A Output Current, typically for MP3 Application. SX1301 SX1301 PAGE: 1 (2) Extending Output Current 1 Alkaline Cell to 3.3V, 250m A Output Current (3) High Output Voltage, Large Output Current 5V to 12V, 300m A Output Current PAGE: 2 PIN ASSIGNMENT PIN DESCRIPTION PIN No SOT-26 1 2 3 4 5 6 SOT-89-5 1 5 4 2 3 SYMBOL DESCRIPTTION CE EXT GND LX VDD FB Enable pin. SX1301...