MAX1706Maxim Integrated1 to 3 Cell, High Current, Low-Noise, Step-Up DC-DC Converters with Linear RegulatorLow-Noise, Dual-Output Converter Powers PA and Radio Baseband and Logic In Cellular Phones
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MAX1706Maxim Integrated
制造商:
Maxim Integrated
制造商型号#:
MAX1706
百芯编号#:
CM1749083037
价格(CNY):
百芯库存:
207
个
库存地点:
可供应量:
174
个在库
此为供应商库存，需要与销售确认
产品描述:
1 to 3 Cell, High Current, Low-Noise, Step-Up DC-DC Converters with Linear RegulatorLow-Noise, Dual-Output Converter Powers PA and Radio Baseband and Logic In Cellular Phones
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.
