MAX1705EEE
MAXIM(美信)
企业名:润嘉泰电子元器件销售部
类型:经销商
电话: 0755-36649002
手机:13631620280
联系人:杜小姐
邮箱:duxiaominkelly@sina.cn
地址:广东深圳新亚洲二期N1A200
低噪声、双输出转换器,为蜂窝电话中的PA、无线基带和逻辑电路供电
The MAX1705/MAX1706 are high-efficiency, low-noise, step-up DC-DC converters with an auxiliary linear-regulator output. These devices are intended for use in battery-powered wireless applications. They use a synchronous rectifier pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from battery inputs, such as 1 to 3 NiCd/NiMH cells or 1 Li-Ion cell. The MAX1705 has an internal 1A n-channel MOSFET switch. The MAX1706 has a 0.5A switch. Both devices also have a built-in low-dropout linear regulator that delivers up to 200mA.
With an internal synchronous rectifier, the MAX1705/MAX1706 deliver 5% better efficiency than similar non-synchronous converters. They also feature a pulse-frequency-modulation (PFM) standby mode to improve efficiency at light loads, and a 1μA shutdown mode. An efficiency-enhancing track mode reduces the step-up DC-DC converter output to 300mV above the linear-regulator output.
Both devices come in a 16-pin QSOP package, which occupies the same space as an 8-pin SO. Other features include two shutdown-control inputs for push-on/push-off control, and an uncommitted comparator for use as a voltage monitor.
企业名:润嘉泰电子元器件销售部
类型:经销商
电话: 0755-36649002
手机:13631620280
联系人:杜小姐
邮箱:duxiaominkelly@sina.cn
地址:广东深圳新亚洲二期N1A200
友情链接: 深圳市元东发电子有限公司