- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:直流/直流开关稳压器 - 降压稳压器
- 功能描述:具有高效睡眠模式的 3A 开关稳压器
- 点击这里打开及下载LM26003的技术文档资料
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The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.
The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.
Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.
Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.
- LM26003-Q1 is an Automotive-Grade Product That is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)
- High-Efficiency Sleep Mode
- 40-μA Typical Iq in Sleep Mode
- 10.8-μA Typical Iq in Shutdown Mode
- 3.0-V Minimum Input Voltage
- 4.0-V to 38-V Continuous Input Range
- 1.5% Reference Accuracy
- Cycle-by-Cycle Current Limit
- Adjustable Frequency (150 kHz to 500 kHz)
- Synchronizable to an External Clock
- Power Good Flag
- Forced PWM Function
- Adjustable Soft-Start
- 20-Pin HTSSOP Package
- Thermal Shut Down
- Vin (Min) (V)
- 3
- Vin (Max) (V)
- 38
- Vout (Min) (V)
- 1.25
- Vout (Max) (V)
- 35
- Iout (Max) (A)
- 3
- Iq (Typ) (uA)
- 40
- Switching frequency (Min) (kHz)
- 150
- Switching frequency (Max) (kHz)
- 500
- Features
- Enable, Light Load Efficiency, Over Current Protection, Power Good, Pre-Bias Start-Up
- Rating
- Catalog
- Regulated outputs (#)
- 1
- Control mode
- Current Mode
- Duty cycle (Max) (%)
- 98
LM26003的完整型号有:LM26003MH/NOPB、LM26003MHX/NOPB,以下是这些产品的关键参数及官网采购报价:
LM26003MH/NOPB,工作温度:-40 to 125,封装:HTSSOP (PWP)-20,包装数量MPQ:73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LM26003MH/NOPB的批量USD价格:1.685(1000+)
LM26003MHX/NOPB,工作温度:-40 to 125,封装:HTSSOP (PWP)-20,包装数量MPQ:2500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LM26003MHX/NOPB的批量USD价格:1.404(1000+)
LM26003EVAL — LM26003 - 具有高效休眠模式的 3A 开关稳压器评估模块
The LM26003 evaluation board is designed to demonstrate the capabilities of the LM26003 switching regulator. The LM26003 eval board can be configured to provide an output of 3.3V at up to 3A from the input range of 4V to 38V. The nominal operating frequency is 300kHz and can be synchronized from (...)
LM26003 PSpice Average Model
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
PMP9477 — 用于汽车仪表板并采用预升压的 CISPR 25 5 类额定功率多路输出电源
PMP9477 设计是针对汽车仪表盘单元的传导 EMI 优化多输出电源。此电源具有用于冷启动和启停操作的预升压级以及两个降压稳压器。预升压级采用 LM3481 升压控制器,可在输入电压降至 9.5V 时开始工作并提供 9.5V 稳压输出。它使此设计具有 4.5V 至 38V 的宽输入电压范围,因而适用于 12V 汽车电池系统。此设计在预升压后有两个降压稳压器可生成 3 个输出电压:第一级降压利用 LM26003 生成 5V、2A 输出;第二级利用 LM26420 生成两种输出 2.8V、2A 和 1.8V、2A(最大输出功率共计 15W)。LM26003 (...)PMP9458 — 参考设计 - 用于汽车仪表板的 CISPR 25 5 类 14W 额定功率多路输出电源
PMP9458 参考设计是针对汽车群集单元的传导 EMI 优化双层板电源。该电源包含 2 个级联式连接的降压稳压器:第一级可利用 LM26003 生成 5V、2A 输出;第二级可利用 LM26420 生成两种输出 2.8V、1.5A 和 1.8V、2A(最大输出功率共计 14W)。LM26003 是宽输入电压非同步降压稳压器;LM26420 是 5V 2A 输入双路高频同步降压稳压器。它们都具备汽车级版本,且通过了 AEC-Q100 1 级认证。此设计具有 6.5V 到 38V 的输入电压范围,因而适用于 12V 汽车电池系统。双层板设计包含经过优化的 PCB (...)