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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AS1333 Datenblatt(PDF) 1 Page - ams AG |
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AS1333 Datenblatt(HTML) 1 Page - ams AG |
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1 / 16 page  AS1333 650mA, Step Down DC/DC Conver ter for Portable Applications Dat a Sh eet www.austriamicrosystems.com Revision 1.02 1 - 16 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. 2 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 m Ω Typ PFET) ! 8-pin WL-CSP 3 Applications The AS1333 is an ideal solution for cellular phones, hand-held radios, RF PC cards, battery powered RF devices, and RFIC chipsets. Figure 1. Typical Application Circuit AS1333 PGND AGND NC EN PVIN VDD SW FB 3.09V 10 µF 3.3 µH VOUT VIN 10 µF |
Ähnliche Teilenummer - AS1333 |
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Ähnliche Beschreibung - AS1333 |
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