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AS1339 |
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| Part Number | AS1339 |
| Manufacturer | austriamicrosystems AG |
| Description | The AS1339 is a high-frequency step-down converter optimized for dynamically powering the power amplifier (PA) in WCDMA or NCDMA handsets. The device uses a 110mΩ typical bypass FET to power the PA di... |
| Features |
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Fixed Switching Frequency: 2MHz PA Step-Down Converter Low Dropout Voltage Low Output-Voltage Ripple Dynamic Output Voltage Control (0.8V to 3.75V) 30µs Settling Time for 0.8V to 3.4V Output Voltage Change 650mA Output Drive Capability Two 10mA Low-Noise LDOs Low Shutdown Current Supply Voltage Range: 2.7V to 5.5V Thermal Shutdown 16-pin WLP (2x2mm) package
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3 Applications
The AS1339 is ideal for WCDMA/NCDMA cellular handsets, Wireless PDAs, and Smartphones.
Figure 1. Typical Operating Circuit
VIN 2.7V to 5.5V 10µF VPA 0.8V to 3.75V
IN1A
PAA PAB
IN1B
LX 2.2µH 4.7... |
| Document |
 AS1339 Data Sheet
PDF 3.98MB |
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