The MAX1765EUE+ is an 800mA, low noise, step-up DC-DC converter with 500mA linear regulator in 16 pin TSSOP package. This device operates at a high 1MHz fixed frequency while maintaining an exceptionally low quiescent supply current (200μA). It's small external components and tiny package make this device an excellent choice for small hand-held applications that requires longest possible battery life. Uses a synchronous-rectified pulse width modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources such as one to three alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell. The low-dropout (LDO) linear regulator and DC-DC converter have separate shutdown control. The high efficiency, low noise, converter used in battery-powered wireless applications and PCS phones, personal communicators, palmtop computers.
Input voltage range from 0.7V to 5.5V
Operating temperature range from -40°C to 85°C
Up to 93% efficiency
500mA LDO linear regulator
2.85V linear regulator output or adjustable (1.25V to 5V)
(EN)
