ADI公司的ADP2116是多功能同步降压DC/DC开关稳压电源,两个PWM通路可提供独立的3A和3A或3A和2A输出或配置成单路6A输出.输入电压2.75V-5.5V,可选择固定输出电压0.8V,1.2V,1.5V,1.8V,2.5V或3.3V,或可调节输出电压低至0.6V,效率高达95%.主要应用在点负载,通信和网络系统消费类电子,工业和仪表与医疗设备.本文介绍ADP2116主要特性,方框图,几种典型应用电路和ADP2116评估板的主要特性,电路图和所用材料清单.TheADP2116isaversatile,synch
ADI 公司的ADP21
16是多功能同步降压DC/DC
开关稳压电源,两个PWM通路可提供独立的3A和3A或3A和2A输出或配置成单路6A输出.输入电压2.75V-5.5V,可选择固定输出电压0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V或 3.3 V,或可调节输出电压低至0.6V,效率高达95%.主要应用在点负载,通信和网络系统消费类
电子,工业和
仪表与医疗设备.本文介绍ADP2116主要特性,方框图,几种典型应用电路和ADP2116评估板的主要特性,电路图和所用材料清单.
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.
