MAX1557ETB+T

The MAX1557ETB+T is a 16μA quiescent current, 1.2A PWM step-down DC to DC converter in 10 pin TDFN package. It is a high efficiency, low-quiescent operating current, low dropout and minimal (27μA) quiescent current in dropout make this converter ideal for powering portable devices from 1-cell Li-ion or 3-cell alkaline/NiMH batteries. The MAX1557 delivers up to 600mA and has pin selectable 1V, 1.3V and 1.5V outputs and is also adjustable. The MAX1557 contain a low on-resistance internal MOSFET switch and synchronous rectifier to maximize efficiency and dropout performance while minimizing external component count. A 1MHz PWM switching frequency keeps components small. Both devices also feature an adjustable soft-start to minimize battery transient loading.

• Supply voltage range is 2.6V to 5.5V
• Operating temperature range from -40°C to 85°C
• Voltage positioning optimizes load transient response
• Low shutdown current is 0.1μA
• No external schottky diode required

Notas

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