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BCT2057
1A Low Dropout Linear Regulators
GENERAL DESCRIPTION
The BCT2057 series low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 1.6V to 5.5V 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 BCT2057 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 1.8A 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 0.8V to 5.0V. Other features include a low shutdown current, fold-back current limit and thermal shutdown protection.
The BCT2057 is available in Green SOT23-5 or DFN2x2-6L Packages. It operates over an ambient temperature range of -40°C to +85°C.
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Portable/Battery-Powered Equipment
FEATURES
Wide Input Voltage Range: 1.6V to 5.5V
Fixed Outputs of
0.8V,0.9V,1.0V,1.05V,1.1V,1.2V,1.3V,1.35,1.
5V,1.8V,2.2V,2.5V,2.8V,3.0V 3.3V and 3.6V
1A Current Rating
Adjustable Output from 0.8V to 5.0V
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
Green SOT23-5 or DFN2x2-6L Packages
