Datasheet Details
- Part number
- LM3203
- Manufacturer
- National Semiconductor
- File Size
- 1.36 MB
- Datasheet
- LM3203_NationalSemiconductor.pdf
- Description
- Step-Down DC-DC Converter
LM3203 Description
July 2005 www.DataSheet4U.com LM3203 Step-Down DC-DC Converter with Bypass Mode for CDMA / WCDMA RF Power Amplifiers LM3203 Step-Down DC-DC Converte.
The LM3203 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell.
LM3203 Features
* n n n n n n n n n n n 2MHz (typ. ) PWM Switching Frequency Operates from a single Li-Ion cell (2.7V to 5.5V) Adjustable Output Voltage (0.8V to 3.6V) 500mA Maximum load capability (PWM and Bypass mode) PWM / Forced Bypass Mode Low RDSON Bypass FET: 85mΩ (typ. ) High Efficiency (96% typ. at 3.6VIN, 3.2
LM3203 Applications
* It steps down an input voltage of 2.7V to 5.5V to an adjustable output voltage of 0.8V to 3.6V. The output voltage is set using a VCON analog input and external resistor dividers for optimizing efficiency of the RF PA at various power levels. The LM3203 offers 3 modes for mobile phones and similar
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