LM2621 - 低输入电压，升压 DC-DC

LM2621是TI德州仪器公司的一款转换器（集成开关）产品，LM2621是低输入电压，升压 DC-DC，本站介绍了LM2621的封装应用图解、特点和优点、功能等，并给出了与LM2621相关的TI元器件型号供参考。

LM2621 - 低输入电压，升压 DC-DC - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

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

产品应用

PDAs, Cellular Phones
2-Cell and 3-Cell Battery-Operated Equipment
PCMCIA Cards, Memory Cards
Flash Memory Programming
TFT/LCD Applications
3.3-V to 5.0-V Conversion
GPS Devices
Two-Way Pagers
Palmtop Computers
Hand-Held Instruments

产品说明

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.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM2621	VSSOP (8)	3.00 mm x 3.00 mm

下面可能是您感兴趣的TI德州仪器公司转换器（集成开关）元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购