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发布者:来自网络 发布时间:2020/3/12 阅读:253次    关键字: DC-DC
FP1207-异步升压控制IC


FP1207-异步升压控制IC DataSheet

FP1207应用说明  Application Note

FP1207 8V to 24V 5A

FP1207 24V to 48V 2.5A

FP1207元件值计算

一般描述:
FP1207是异步升压控制IC,透过EXT Pin控制外部NMOS,输入低启动电压2.8V与宽工作电压5V~24V,单节锂电池3V~4.2V应用,将Vout接到HVDD Pin;精准的反馈电压1.2V,内置软启动,工作频率由外部电阻调整;过电流保护,检测电感峰值电流,检测电阻Rcs接在开关NMOS Source端与地之间。
 
特色:
➢启动电压2.8V
➢工作电压范围5V~24V
➢反馈电压1.2V(±2%)
➢关机耗电流小于3μA
➢可调工作频率100kHz~1000kHz
➢内置软启动
➢输入低电压保护(UVP)
➢可调过电流保护(OCP)
➢过温保护(OTP)
➢封装SOP-8L(EP)
 
应用范围:
➢蓝牙音响
➢充电器
➢移动电源
➢携带式产品

General Description
    The FP1207 is boost topology switching regulator for wide operating voltage applications. It provides built-in gate driver pin for driving external N-MOSFET. The non-inverting input of error amplifier connects to a 1.2V precision reference voltage. It has programmable switching frequency set by external resistor, and programmable inductor peak current limit connects a resistor from CS to GND. Current mode control and external compensation network make is easy and flexible to stabilize the system.
    The FP1207 is available in the small footprint SOP-8L(EP) package to fit in space-saving PCB layout for application fields.

Features
 Start-up Voltage: 2.8V
 Wide Supply Voltage Operating Range: 5V to 24V
 Precision Feedback Reference Voltage: 1.2V (±2%)
 Shutdown Current: <3μA
 Programmable Switching Frequency: 100KHz~1000KHz
 Input Under Voltage Protection(UVP)
 Switching MOSFET Over Current Protection (OCP)
 Over Temperature Protection (OTP)
 Package: SOP-8L(EP)

Applications
 Chargers
 LCD Displays
 Handheld Devices
 Portable Products
 Power Bank

 
 
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