General Description

The AS1340 boost converter contains a 1.4A internal switch in a tiny TDFN-8 3x3mm package. The device operates from a 2.7 to 5.5V supply, and can boost voltages up to 50V output. The output voltage can easily be adjusted by an external resistor divider. The AS1340 uses a unique control scheme providing the highest efficiency over a wide range of load conditions. An internal 1.4A MOSFET reduces external component count, and a fixed high switching frequency (1MHz) allows for tiny surface-mount components.

Key Features

2.7V to 50V Adjustable Output Voltage

2.7V to 50V Input Voltage Range

2.7V to 5.5V Supply Voltage Range

High Output Currents:

   - 100mA @ 12V from 3.3V VIN

   - 50mA @ 24V from 3.3V VIN

   - 30mA @ 36V from 3.3V VIN

Efficiency: Up to 93%

Switching Frequency: 1MHz

Output Disconnect

Power-OK Output

Operating Supply Current: 30µA

Shutdown Current: 0.1µA

TDFN-8 3x3mm Package