LT1941EFE#PBF

LT1941 is a triple current mode DC/DC converter with internal power switches. Two of the regulators are step-down converters with 3A and 2A power switches. The third regulator can be configured as a boost, inverter or SEPIC converter and has a 1.5A power switch. The two step-down converters run with opposite phase, 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. The high switching frequency offers several advantages by permitting the use of small inductors and ceramic capacitors, leading to a very small triple output solution. It is widely used in application such as cable modems, DSL modems, distributed power regulation, wall transformer regulation, disk drives, DSP power etc.

• Wide input voltage range is 3.5V to 25V
• Antiphase switching reduces ripple
• Independent shutdown/soft-start pins
• Independent power good indicators ease supply sequencing
• Input voltage power good indicators monitor input supply
• Uses small inductors and ceramic capacitors
• Operating ambient temperature is -40°C to 85°C
• Package style is 28-lead plastic TSSOP

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