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车规 ET533XX
General Description
The ET533XX family are the 300mA LDO with auto discharge function, it uses an advanced CMOS process and a PMOSFET pass device to achieve high power supply rejection ratio (PSRR), low noise, low dropout, low ground current, fast start-up and excellent output accuracy.
The ET533XX family are stable with a 1.0μF ceramic output capacitor, uses a precision voltage reference and feedback loop to achieve excellent regulation and transient response.
The ET533XX family offered in a small SOT23-5 / SC70-5 / SOT343 / DFN4 / SOT23-3 / SOT89-3 package, which are ideal for small form factor portable equipment.
The ET533XX is available in standard fixed output voltages of 1.2V (ET53312), 1.8V (ET53318), 2.5V (ET53325), 2.8 (ET53328), 3.0V (ET53330), 3.3V (ET53333) and custom voltage options (50mV step options between 0.8V and 5.0V are available upon request).
Features
Wide Input Voltage Range from 2.0V to 6.0V
Up to 300mA Load Current
Standard Fixed Output Voltage Options:1.2V, 1.8V, 2.5V, 2.8V, 3.0V and 3.3V etc
Very Low IQ is 42µA typical
Low Dropout is typical 240mV@2.8V at 300mA Load
Very Low Noise is 45uVrms at 1.2V output
Ultra-Fast Start-Up Time is 25µs typical
Excellent Load/Line Transient Response
Part No. and Package
Applications
Smart Phones and Cellular Phones
Digital Still Cameras
Portable Instruments
Pin Configuration
Block Diagram
Application Circuits
