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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