LT3506AEDHD#PBF

LT3506A 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. This device switching frequency is 1.1MHz. This high switching frequencies allow the use of tiny inductors and capacitors, resulting in a very small dual 1.6A output solution. Current mode PWM architecture provides fast transient response with simple compensation components and cycle-by-cycle current limiting. It is used in application such as disk drives, DSP power supplies, wall transformer regulation, distributed power regulation, DSL modems, cable modems etc.

• Wide input voltage range is 3.6V to 25V
• Anti-phase switching reduces ripple
• Independent shutdown/soft-start pins
• Uses small inductors and ceramic capacitors
• Quiescent current is 3.8mA typical
• Shutdown current is 30mA typical
• Switch VCESAT is 210mV typical at (SW = 1A)
• Accurate 0.8V reference
• Operating temperature is -40°C to 85°C
• Package style is 16-lead plastic DFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party