AP72200高效同步DC-DC升降压转换器解决方案
diodes公司的ap72200是大电流同步dc/dc升降压转换器,具有高效率,极好的瞬态响应和大dc输出精度.它采用四开关h桥配置,支持降压和升压工作,升/降压提供大于2a的输出电流.ap72200具有i2c兼容两线串行接口,包括双向串行数据线,sda和串行时钟线,scl.支持scl时钟速率高达3.4mhz;此外,还具有uvlo,otp和ocp保护电路.输入电压vin从2.3v到5.5v,输出电压从2.6v-5.14v,连续输出电流2a,当vout=3.4v和 vin>2.9v时效率高达97%.主要用在智能手机,平板电脑和其它手持设备.本文介绍了ap72200主要特性,功能框图,典型应用以及评估板ap72200-evm主要特性,电路图,材料清单和pcb设计图.
the ap72200 is a high-current synchronous buck-boost converter providing high efficiency, excellent transient response, and high dc output accuracy. the targeted applications are smartphones, tablets, and other handheld devices. the ap72200 utilizes a four-switch h-bridge configuration to support buck and boost operation. the buck-boost provides at least 2a output current.
the current control scheme handles wide input/output voltage ratios and provides low external component count with outstanding performance in line/load transient response and seamless transition between buck and boost modes.
the ap72200 features i2c compatible, two-wire serial interface consisting of a bidirectional serial-data line, sda, and a serial-clock line, scl. it supports scl clock rates up to 3.4mhz.
the ap72200 also features uvlo, otp, and ocp to protect the circuit.
this ic is available in a small 2.125mm × 1.750mm, 20 balls wlcsp package.
ap72200主要特性:
• vin 2.3v to 5.5v
• output voltage range: 2.6v to 5.14v
• 2a continuous output current for vout=3.4v and vin>2.9v efficiency up to 97%
• 2.5mhz switching frequency
• i2c interface
• selectable mode pfm/pwm
• ultrasonic operation programmable through i2c
• power good indicator with 5mω internal pull-up
• adjustable overcurrent limit
• fully protected for overcurrent, short circuit, reverse current protection, overtemperature, and uvlo
• totally lead-free & fully rohs compliant (notes 1 & 2)
• halogen and antimony free. “green” device (note 3)
ap72200应用:
• smartphones
• tablets
• portable consumer devices
图1.ap72200框图
图2. ap72200典型应用
评估板ap72200-evm
the ap72200 is a high current synchronous buck-boost converter providing high efficiency, excellent transient response and high dc output accuracy. the targeted applications are smartphones, tablets, and other handheld devices. the ap72200 utilizes a four switches h-bridge configuration to support buck and boost operation. the buck-boost provides at least 2a output current.
the current control scheme handles wide input/output voltage ratios and provides low external component count with outstanding performance in line/load transient response and seamless transition between buck and boost modes.
the ap72200 features i2c compatible, 2-wires serial interface consisting of a bidirectional serial-data line, sda, and a serial-clock line, scl. it supports scl clock rates up to 3.4mhz.
the ap72200 also features uvlo, otp, and ocp to protect the circuit.
this ic is available in a small 2.125x1.750mm, 20 balls wlcsp package
评估板ap72200-evm主要特性:
vin 2.3v to 5.5v
output voltage range: 2.6v to 5.14v
2a continuous output current for vout=3.4v and vin > 2.9v efficiency up to 97%
2.5mhz switching frequency
i2c interface
selectable mode pfm/pwm
ultrasonic operation programmable through i2c
power good indicator with 5m internal pull-up
adjustable overcurrent limit
full protected for overcurrent,short circuit,reverse current protection, over temperature, and uvlo
totally lead-free & fully rohs compliant
halogen and antimony free. “green” device
应用:
smartphones
tablets
portable consumer devices
图3.评估板ap72200-evm外形图
图4.评估板ap72200-evm电路图
评估板ap72200-evm材料清单:
图5.评估板ap72200-evm pcb设计图:顶层
图6.评估板ap72200-evm pcb设计图:底
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the ap72200 is a high-current synchronous buck-boost converter providing high efficiency, excellent transient response, and high dc output accuracy. the targeted applications are smartphones, tablets, and other handheld devices. the ap72200 utilizes a four-switch h-bridge configuration to support buck and boost operation. the buck-boost provides at least 2a output current.
the current control scheme handles wide input/output voltage ratios and provides low external component count with outstanding performance in line/load transient response and seamless transition between buck and boost modes.
the ap72200 features i2c compatible, two-wire serial interface consisting of a bidirectional serial-data line, sda, and a serial-clock line, scl. it supports scl clock rates up to 3.4mhz.
the ap72200 also features uvlo, otp, and ocp to protect the circuit.
this ic is available in a small 2.125mm × 1.750mm, 20 balls wlcsp package.
ap72200主要特性:
• vin 2.3v to 5.5v
• output voltage range: 2.6v to 5.14v
• 2a continuous output current for vout=3.4v and vin>2.9v efficiency up to 97%
• 2.5mhz switching frequency
• i2c interface
• selectable mode pfm/pwm
• ultrasonic operation programmable through i2c
• power good indicator with 5mω internal pull-up
• adjustable overcurrent limit
• fully protected for overcurrent, short circuit, reverse current protection, overtemperature, and uvlo
• totally lead-free & fully rohs compliant (notes 1 & 2)
• halogen and antimony free. “green” device (note 3)
ap72200应用:
• smartphones
• tablets
• portable consumer devices
图1.ap72200框图
图2. ap72200典型应用
评估板ap72200-evm
the ap72200 is a high current synchronous buck-boost converter providing high efficiency, excellent transient response and high dc output accuracy. the targeted applications are smartphones, tablets, and other handheld devices. the ap72200 utilizes a four switches h-bridge configuration to support buck and boost operation. the buck-boost provides at least 2a output current.
the current control scheme handles wide input/output voltage ratios and provides low external component count with outstanding performance in line/load transient response and seamless transition between buck and boost modes.
the ap72200 features i2c compatible, 2-wires serial interface consisting of a bidirectional serial-data line, sda, and a serial-clock line, scl. it supports scl clock rates up to 3.4mhz.
the ap72200 also features uvlo, otp, and ocp to protect the circuit.
this ic is available in a small 2.125x1.750mm, 20 balls wlcsp package
评估板ap72200-evm主要特性:
vin 2.3v to 5.5v
output voltage range: 2.6v to 5.14v
2a continuous output current for vout=3.4v and vin > 2.9v efficiency up to 97%
2.5mhz switching frequency
i2c interface
selectable mode pfm/pwm
ultrasonic operation programmable through i2c
power good indicator with 5m internal pull-up
adjustable overcurrent limit
full protected for overcurrent,short circuit,reverse current protection, over temperature, and uvlo
totally lead-free & fully rohs compliant
halogen and antimony free. “green” device
应用:
smartphones
tablets
portable consumer devices
图3.评估板ap72200-evm外形图
图4.评估板ap72200-evm电路图
评估板ap72200-evm材料清单:
图5.评估板ap72200-evm pcb设计图:顶层
图6.评估板ap72200-evm pcb设计图:底
美国海军正在研制三种新型舰载武器
变压器的吊芯检修要求
2015德州仪器中国教育者巡回讲座圆满收官
安捷伦购并元件模型厂Accelicon
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比特币和区块链的核心特征是去中心化
电力电容器的寿命和工作时电压工作电流之间的关系
NASA拟2026年在月球和火星上建造核电站
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胆机产生失真的原因及消除的方法,amplifier distortion
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弱电设备中隐藏的电磁兼容问题探讨
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