Description

This article is about the electronic component model AS1339-BWLT, which is a type of special-purpose voltage regulator. It is a synchronous, low voltage, high efficiency DC-DC boost converter that generates an output voltage between 1.8 and 3.3V from input voltages down to 0.6V. With a fixed frequency of 4MHz, it allows for the use of a small and low profile inductor of only 470nH, resulting in a space-efficient solution for applications that require an output current of 150mA @ 3.3V from a single cell.

Specifications and features

• Input voltage range: 0.6V to 3.0V
• Adjustable output voltage range: 1.8V to 3.3V
• Fixed output voltage: 1.8V, 3.0V
• Low start-up voltage of 0.85V
• 4MHz fixed-frequency
• 91% efficiency
• Delivers 150mA @ 3.3V (from single AA cell)
• Automatic powersave operation for light loads
• Output disconnect during shutdown
• Anti-ringing control minimizes EMI
• Power okay and sense pin
• TDFN (2x2mm) 8-pin package

Application Scenarios

The AS1330 is ideal for space critical applications where ultra-small size is critical as in medical diagnostic equipment, handheld instruments, digital cameras, MP3 players, GPS receivers, and PC or memory cards.

Comparison

• Small and low profile inductor of only 470nH
• Output voltage range between 1.8 and 3.3V from input voltages down to 0.6V
• High efficiency of 91%
• Automatic powersave operation for light loads

• Fixed frequency of 4MHz, which may not be suitable for some applications