LT3506/LT3506A
Dual Monolithic 1.6A
Step-Down Switching Regulator
FEATURES DESCRIPTION n The LT®3506 is a dual current mode PWM step-down DC/DC
converter with internal 2A power switches. Both converters are synchronized to a single oscillator and run with
opposite phases, reducing input ripple current. The output
voltages are set with external resistor dividers, and each
regulator has independent shutdown and soft-start circuits.
Each regulator generates a power-good signal when its
output is in regulation, easing power supply sequencing
and interfacing with microcontrollers and DSPs. Wide Input Voltage Range, 3.6V to 25V
Two 1.6A Output Switching Regulators with Internal
Power Switches
Constant Switching Frequency
LT3506: 575kHz
LT3506A: 1.1MHz
Anti-Phase Switching Reduces Ripple
Accurate 0.8V Reference, ±1%
Independent Shutdown/Soft-Start Pins
Independent Power Good Indicators Ease Supply
Sequencing
Uses Small Inductors and Ceramic Capacitors
Small 16-Lead Thermally Enhanced 5mm × 4mm …