ADI公司的ADP2116是多功能同步降壓DC/DC開關(guān)穩(wěn)壓電源,兩個PWM通路可提供獨(dú)立的3A和3A或3A和2A輸出或配置成單路6A輸出.輸入電壓2.75V-5.5V,可選擇固定輸出電壓0.8V,1.2V,1.5V,1.8V,2.5V或3.3V,或可調(diào)節(jié)輸出電壓低至0.6V,效率高達(dá)95%.主要應(yīng)用在點(diǎn)負(fù)載,通信和網(wǎng)絡(luò)系統(tǒng)消費(fèi)類電子,工業(yè)和儀表與醫(yī)療設(shè)備.本文介紹ADP2116主要特性,方框圖,幾種典型應(yīng)用電路和ADP2116評估板的主要特性,電路圖和所用材料清單.TheADP2116isaversatile,synch
ADI 公司的ADP21
16是多功能同步降壓DC/DC
開關(guān)穩(wěn)壓電源,兩個PWM通路可提供獨(dú)立的3A和3A或3A和2A輸出或配置成單路6A輸出.輸入電壓2.75V-5.5V,可選擇固定輸出電壓0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V或 3.3 V,或可調(diào)節(jié)輸出電壓低至0.6V,效率高達(dá)95%.主要應(yīng)用在點(diǎn)負(fù)載,通信和網(wǎng)絡(luò)系統(tǒng)消費(fèi)類
電子,工業(yè)和
儀表與醫(yī)療設(shè)備.本文介紹ADP2116主要特性,方框圖,幾種典型應(yīng)用電路和ADP2116評估板的主要特性,電路圖和所用材料清單.
The ADP2116 is a versatile, synchr
onous, step-down switching regulator that satisfies a wide range of customer point-of-load requirements. The two PWM channels can be configured to deliver independent
outputs at 3 A and 3 A (or at 3 A and 2 A) or can be configured
asa single interleaved output capable of delivering 6 A. The two PWM channels are 180° phase shifted to reduce input ripple current and input capacitance.
The ADP2116 provides high efficiency and can operate at switching frequencies of up to 2 MHz. At light loads, the ADP2116 can be set to operate in pulse skip mode for higher efficiency or in forced PWM mode for noise sensitive applications.
The ADP2116 is designed with an optimized slew rate to reduce EMI emissions, allowing the device to power sensitive, high perfor-mance signal chain circuits. The switching frequency can be set to 300 kHz, 600 kHz, or 1.2 MHz, or it can be synchronized to an external clock that minimizes the system noise. The bidirectional synchronization pin is also configurable as a 90° out-of-phase output clock, providing the possibility for a stackable multiphase power solution.
The ADP2116 input voltage range is from 2.75 V to 5.5 V and can convert to a fixed output of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V that can be set independently for each channel using external resistors. If a resistor divider is used, the output voltage can be set as low as 0.6 V. The ADP2116 operates over the −
40°C to +125°C junction temperature range.
