LM3263高电流降压型DC - DC转换器, MIPI® RF前端控制接口的射频功率放大器 LM3263 High-Current Step-Down DC-DC Converter with MIPI® RF Front-End Control Interface for RF Power Amplifiers
The LM3263 is a DC-DC converter optimized for powering multi-mode multi-band RF power amplifiers PAs from a single lithium-ion cell. The LM3263 steps down an input voltage from 2.7 V to 5.5 V to a dynamically adjustable output voltage of 0.4 V to 3.6 V. The output voltage is externally programmed through the RFFE Digital Control Interface and is set to ensure efficient operation at all power levels of the RF PA.
When operating in pulse width modulated PWM mode, the LM3263 produces a small and predictable amount of output voltage ripple thus meeting the power and stringent spectral-compliance needs of RF PAs with minimal filtering and minimal excess headroom. When operating in PFM mode, the LM3263 enables the lowest current consumption across PA output power level settings and therefore maximizes system efficiency.
The LM3263 has a unique ctive urrent assist and analog ypass ACB feature to minimize inductor size without any loss of output regulation for the entire battery voltage and RF output power range, until dropout. ACB provides a parallel current path, when needed, to limit the maximum inductor current to 1.45 A typical while still driving a 2.5-A load. The ACB feature also enables operation with minimal dropout voltage.
输出接口数 1
输出电压 0.4V ~ 3.6V
输出电流 2.5 A
开关频率 2430kHz, 2970kHz
拓扑结构 Buck
输入电压Max 5.5 V
输入电压Min 2.7 V
输出电流Max 2.5 A
工作温度Max 90 ℃
工作温度Min 30 ℃
电源电压Min 2.7 V
输入电压 2.7V ~ 5.5V
安装方式 Surface Mount
引脚数 16
封装 DSBGA-16
封装 DSBGA-16
工作温度 -30℃ ~ 90℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM3263TMX/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM3243TME/NOPB 德州仪器 | 类似代替 | LM3263TMX/NOPB和LM3243TME/NOPB的区别 |
LM3263TME/NOPB 德州仪器 | 类似代替 | LM3263TMX/NOPB和LM3263TME/NOPB的区别 |
LM3243TMX/NOPB 德州仪器 | 类似代替 | LM3263TMX/NOPB和LM3243TMX/NOPB的区别 |