- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：多通道 IC (PMIC)
- 功能描述：两个直流/直流转换器和一个 LDO 可配置 PMIC
- 点击这里打开及下载LM26484的技术文档资料
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The LM26484 is a multi-function, configurable Power Management Unit. This device integrates two highly efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and thermal overload protection circuitry. All regulator output voltages are externally adjustable. The LDO controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-24 pin package.
- Step-Down DC/DC Converter (Buck)
- 3.0–5.5V Input Range
- Externally Adjustable VOUT:
- Bucks 1 & 2: 0.8V–3.5V @ 2A
- 180° Phase Shift Between Bucks Clocks
- 2 MHz PWM Switching Frequency
- ±1% feedback Voltage Accuracy
- Automatic Soft Start
- Current Overload Protection
- PWM/PFM efficiency Modes Available
- Linear Regulator (LDO) Controller
- 3.0V–5.5V Input Range
- Externally Adjustable VOUT
- ±1.5% Feedback Voltage Accuracy
- Regulated to Low VIN - Low VOUT LI-LO (Low Input Low Output) NFET Operation
- Input to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2
- Up to 1000 mA Output Current by Selection of External FET
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- Regulated outputs (#)
- 3
- Vin (Min) (V)
- 3
- Vin (Max) (V)
- 5.5
- Iout (Max) (A)
- 2
- Rating
- Catalog
- LDO
- 1
- Features
- Enable, Over Current Protection, Power Good, Power Sequencing, Synchronous Rectification, Thermal Shutdown, UVLO Fixed
- Processor name
- Generic
- Processor supplier
- Generic
- Shutdown current (ISD) (Typ) (uA)
- 0.03
- Switching frequency (Typ) (kHz)
- 2000
- Configurability
- Hardware configurable
LM26484的完整型号有：LM26484SQ/NOPB、LM26484SQE/NOPB、LM26484SQX/NOPB，以下是这些产品的关键参数及官网采购报价：
LM26484SQ/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26484SQ/NOPB的批量USD价格：0.882（1000+）
LM26484SQE/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26484SQE/NOPB的批量USD价格：0.882（1000+）
LM26484SQX/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26484SQX/NOPB的批量USD价格：0.735（1000+）
LM26484SQ/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26484SQ/NOPB的批量USD价格：0.882（1000+）
LM26484SQE/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26484SQE/NOPB的批量USD价格：0.882（1000+）
LM26484SQX/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM26484SQX/NOPB的批量USD价格：0.735（1000+）
