LM2665 - 开关电容器电压转换器

LM2665是TI德州仪器公司的一款电荷泵（无感应器）产品，LM2665是开关电容器电压转换器，本站介绍了LM2665的封装应用图解、特点和优点、功能等，并给出了与LM2665相关的TI元器件型号供参考。

LM2665 - 开关电容器电压转换器 - 电荷泵（无感应器） - DC/DC开关稳压器 - 德州仪器

产品特性

Input Voltage for Voltage Doubler: 2.5 V to 5.5 V
Voltage Divider Splits Voltage: 1.8 V to 11 V
Doubles or Splits Input Supply Voltage
12-Ω Typical Output Impedance
90% Typical Conversion Efficiency at 40 mA
1-µA Typical Shutdown Current

产品应用

Cellular Phones
Pagers
PDAs
Operational Amplifier Power Suppliers
Interface Power Suppliers
Handheld Instruments

产品说明

The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of 2.5 V to 5.5 V. Two low-cost capacitors and a diode (needed during start-up) are used in this circuit to provide up to 40 mA of output current. The LM2665 can also work as a voltage divider to split a voltage in the range of 1.8 V to 11 V in half.

The LM2665 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 µA (operating efficiency greater than 90% with most loads) and 1-µA typical shutdown current, the LM2665 provides ideal performance for battery powered systems.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM2665	SOT-23 (6)	2.90 mm × 1.60 mm

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