LM3280

現行

適用於 RF 電源管理的可調整降壓 DC-DC 轉換器和 3 個 LDO

產品詳細資料

Rating Catalog Operating temperature range (°C) -30 to 85 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.6
Rating Catalog Operating temperature range (°C) -30 to 85 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.6
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • 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) DC-DC
  • High-Efficiency Synchronous Buck Converter
  • 300mA Maximum Load Capability (PWM Mode)
  • 500mA Maximum Load Capability (Bypass mode)
  • PWM, Forced and Automatic Bypass Mode
  • 3 Low-Dropout and Fast Transient Response LDOs
  • 16-pin DSBGA Package
  • Current Overload Protection
  • Thermal Overload Protection
  • 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) DC-DC
  • High-Efficiency Synchronous Buck Converter
  • 300mA Maximum Load Capability (PWM Mode)
  • 500mA Maximum Load Capability (Bypass mode)
  • PWM, Forced and Automatic Bypass Mode
  • 3 Low-Dropout and Fast Transient Response LDOs
  • 16-pin DSBGA Package
  • Current Overload Protection
  • Thermal Overload Protection

The LM3280 is a multi-functional Power Management Unit, optimized for low-power handheld applications such as Cellular Phones.

The LM3280 incorporates three low-dropout LDO voltage regulators and one step down PWM DC-DC converter with an internal Bypass FET. The step down converter's output voltage can be set using an analog input (VCON) for optimizing efficiency of the RF PA at various power levels. The LDO operates a nominal output voltage of 2.85V and maximum load current capability of 20mA for a reference voltage required by linear RF power amplifiers. The LM3280 additionally features a separate enable pin for each output.

The LM3280 is available in a 16-pin lead free DSBGA package.

The LM3280 is a multi-functional Power Management Unit, optimized for low-power handheld applications such as Cellular Phones.

The LM3280 incorporates three low-dropout LDO voltage regulators and one step down PWM DC-DC converter with an internal Bypass FET. The step down converter's output voltage can be set using an analog input (VCON) for optimizing efficiency of the RF PA at various power levels. The LDO operates a nominal output voltage of 2.85V and maximum load current capability of 20mA for a reference voltage required by linear RF power amplifiers. The LM3280 additionally features a separate enable pin for each output.

The LM3280 is available in a 16-pin lead free DSBGA package.

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類型 標題 日期
* Data sheet LM3280 Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management datasheet (Rev. B) 2013年 2月 19日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
EVM User's guide AN-1539 LM3280 Evaluation Board (Rev. A) 2013年 4月 30日

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DSBGA (YZR) 16 Ultra Librarian

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