Microchip Technology MIC5249
The MIC5249 is an efficient, precise 300 mA CMOS voltage regulator with power on reset (POR) delay which can be implemented via an external capacitor. It offers 1% initial accuracy, extremely low dropout voltage (typically 400 mV @ 300 mA), and low ground current (typically 85 mA) over load. Designed specifically for noise-critical applications in hand-held or battery-powered devices, the MIC5249 comes equipped with a noise reduction feature to filter the output noise via an external capacitor.FEATURES
● 300 mA Output Current● High PSRR: 65 dB@120 Hz
● Stable with Ceramic Output Capacitor
● Power-on-Reset (POR) Output with Adjustable Delay Time
● High Output Accuracy: - ±1.0% Initial Accuracy - ±3.0% Over Temperature
● Low Dropout Voltage of 340 mV @ 300 mA
● Low Quiescent Current: 85 µA
● Zero Current Shutdown Mode
● Thermal Shutdown and Current-Limit Protection
● Tiny MSOP-8 Package
APPLICATIONS
● Cellular Phones● PDAs
● Fiber Optic Modules
GENERAL DESCRIPTION
Other features of the MIC5249 include a logic-compatible enable pin, current limit, thermal shutdown, ultra-fast transient response, and an active clamp to speed up device turnoff. The MIC5249 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The MIC5249 is available in the MSOP-8 package. Package Type MIC5249 8-Lead MSOP (MM) (Top View) CBYP 1 DELAY 2 GND 3 VIN 4 8 ENABLE 7 RESET 6 NC 5 VOUT 2021 Microchip Tech...