LM3280
- 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.
技術文件
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檢視所有 3 | 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 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| DSBGA (YZR) | 16 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點