Datasheet Texas Instruments LM21212MHE-2/NOPB — Ficha de datos

LM21212-2
www.ti.com SNVS715A – MARCH 2011 – REVISED MARCH 2013 12A High Efficiency Synchronous Buck Regulator with Adjustable Switching Frequency
Check for Samples: LM21212-2 FEATURES DESCRIPTION The LM21212-2 is a monolithic synchronous buck
regulator that is capable of delivering up to 12A of
continuous output current while producing an output
voltage down to 0.6V with outstanding efficiency. The
device is optimized to work over an input voltage
range of 2.95V to 5.5V, making it suited for a wide
variety of low voltage systems. The voltage mode
control loop provides high noise immunity, narrow
duty cycle capability and can be compensated to be
stable with any type of output capacitance, providing
maximum flexibility and ease of use. 1 2 Integrated 7.0 mΩ High Side and 4.3 mΩ Low
Side FET Switches
300 kHz to 1.55 MHz Resistor-Adjustable
Frequency
Adjustable Output Voltage from 0.6V to VIN
(100% Duty Cycle Capable), В±1% Reference
Input Voltage Range 2.95V to 5.5V
Startup Into Pre-Biased Loads
Output Voltage Tracking Capability
Wide Bandwidth Voltage Loop Error Amplifier
Adjustable Soft-Start With External Capacitor …