SC1461 Datasheet | SEMTECH

Description The SC1461 is a versatile charge pump designed for use in battery operated power supply applications. A simple, low current boost circuit can be implemented without costly inductors or capacitors. Internal MOSFETs and control circuitry eliminate the need for costly board space and design time. The small device footprint allows for pact circuit design. The SC1461 is a Capless TM charge pump for applications that require up to 8m A of output current. Three modes of output voltage can be programmed via the ADJ pin. Modes include: VO = (1.32- VIN) ± 4% @ 7m A of output current VO = (1.515 - VIN) ± 4% @ 4m A of output current and the adjustable mode where an external resistor divider determines the output voltage. The SC1461 is packaged in a 5 lead SOT-23 package. Features Small size - 5 pin SOT-23 package 4% voltage accuracy 65u A typ. quiescent current User selectable output voltages of 1.515- VIN, 1.32 - VIN, or adjustable output K All specifications rated over full temperature range (-40°C to 85°C) Applications K K K K K PDA Power Supplies Notebook Power Supplies Peripheral Card Supplies Industrial Power Supplies High Density DC/DC Conversion Typical Application Circuit R1   Vo = 1.03 × Vin × 1 +   R1 + R2  Vin = 3.3V SC1461 Vo = 5.0V Vin = 2.5V SC1461 Vo = 3.3V Vo SC1461 Vin Disable Vin Disable Vin Cin 0.22u F Cout 47n F Cin 0.22u F Cout 47n F Cout 47n F Disable Vin Vo Vo Vo R1 Cin 0.22u...