LM2621MMX/NOPB 供应商
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LM2621MMX/NOPB
品牌：TI 封装/批号：原厂原装/22+ -
LM2621MMX/NOPB
品牌：TI/德州仪器 封装/批号：MSOP8/21+ -
LM2621MMX/NOPB
品牌：TI(德州仪器) 封装/批号：VSSOP-8/2022+ -
LM2621MMX/NOPB
品牌：TI 封装/批号：原封/23+
LM2621MMX/NOPB 属性参数
- 制造商：National Semiconductor (TI)
- 输入电压：14 V
- 开关频率：300 KHz to 2000 KHz
- 输出电压：1.24 V to 14 V
- 输出电流：1 A
- 输出端数量：1
- 最大工作温度：+ 85 C
- 安装风格：SMD/SMT
- 封装 / 箱体：MSOP
- 最小工作温度：- 40 C
- 封装：Reel
- 工厂包装数量：3500
产品特性
- Small VSSOP8 Package (Half the Footprint of Standard 8-Pin SOIC Package)
- 1.09-mm Package Height
- Up to 2-MHz Switching Frequency
- 1.2-V to 14-V Input Voltage
- 1.24-V to 14-V Adjustable Output Voltage
- Up to 1A Load Current
- 0.17-Ω Internal MOSFET
- Up to 90% Regulator Efficiency
- 80-µA Typical Operating Current
- < 2.5-µA Specified Supply Current In Shutdown
产品概述
The LM2621 is a high efficiency, step-up DC-DC switching regulator for battery-powered
and low input voltage systems. It accepts an input voltage between 1.2 V and 14 V and converts it
into a regulated output voltage. The output voltage can be adjusted between 1.24 V and 14 V. It has
an internal 0.17-Ω N-Channel MOSFET power switch. Efficiencies up to 90% are achievable using the
LM2621.The high switching frequency (adjustable up to 2 MHz) of the LM2621 allows for tiny
surface mount inductors and capacitors. Because of the unique constant-duty-cycle gated oscillator
topology very high efficiencies are realized over a wide load range. The supply current is reduced
to 80 µA because of the BiCMOS process technology. In the shutdown mode, the supply current is less
than 2.5 µA.The LM2621 is available in a VSSOP-8 package. This package uses half the board area of a
standard 8-pin SOIC and has a height of just 1.09 mm.
LM2621MMX/NOPB 电路图
