1A Low Dropout Linear Regulators

1A Low Dropout Linear Regulators


The BCT2040 series low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.2V to 6.0V input voltage. They are the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The BCT2040 series also offer ultra-low dropout voltage to prolong battery life in portable electronics. Output current minimum limit is 1A, and over-current protection limit is set at 2A typical.

These devices feature a shutdown function and are offered in active low with auto discharge. The output voltage is preset to voltages in the range of 1.0V to 5.0V. Other features include a low shutdown current, fold-back current limit and thermal shutdown protection.

The BCT2040 is available in Green ESOP-8 packages. It operates over an ambient temperature range of -40°C to +85°C.


Cellular Telephones

Cordless Telephones



MP3 Player

Hand-Held Instruments

Portable/Battery-Powered Equipment


Wide Input Voltage Range: 2.2V to 6.0V

Fixed Outputs of1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V 3.3V and 5.0V

Adjustable Output from 0.8V to 5.0V

1A Current Rating

Low Dropout Voltage

Output Current Limit

Quick output discharge

Thermal-Overload Protection

High PSRR(65dB at 1kHz)

-40°C to 85°C Operating Temperature Range

Available in Green ESOP-8 Packages