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AS1333 - 650mA Step Down DC/DC Converter

General Description

The AS1333 is a step-down DC-DC converter designed to power portable applications from a single Li-Ion battery.

The device also achieves high-performance in mobile phones and other applications requiring low dropout voltage.

Key Features

  • ! ! ! ! ! PWM Switching Frequency: 2MHz Single Lithium-Ion Cell Operation Fixed Output Voltage (3.09V) Maximum load capability of 650mA High Efficiency (96% Typ at 3.6VIN, 3.09VOUT at 400mA) from internal synchronous rectification Current Overload Protection Thermal Overload Protection Soft Start Low Dropout Voltage (140 mΩ Typ PFET) 8-pin WL-CSP ! ! ! ! ! 3.

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Datasheet Details

Part number AS1333
Manufacturer austriamicrosystems AG
File Size 1.69 MB
Description 650mA Step Down DC/DC Converter
Datasheet download datasheet AS1333 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com AS1333 1 General Description The AS1333 is a step-down DC-DC converter designed to power portable applications from a single Li-Ion battery. The device also achieves high-performance in mobile phones and other applications requiring low dropout voltage. The AS1333 steps down an input voltage of 3.25V to 5.5V to a fixed output voltage of 3.09V. Fixed-frequency PWM operation minimizes RF interference. Shutdown function turns the device off and reduces battery consumption to 0.01µA (typ.). The AS1333 is available in a 8-pin WL-CSP package. A high switching frequency (2 MHz) allows use of tiny surface-mount components. Only three small external surface-mount components, an inductor and two ceramic capacitors are required.