Datasheet > C3216X5R1E226M

C3216X5R1E226M

更新时间： 2024-11-04 12:54:03

品牌	Logo	应用领域
特瑞仕 - TOREX		晶体转换器晶体管驱动
页数	文件大小	规格书
21页	571K
描述
18V Driver Transistor Built-In Synchronous Step-Down DC/DC Converter

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C3216X5R1E226M 数据手册

XC9248Series

ETR05022-004

18V Driver Transistor Built-In Synchronous Step-Down DC/DC Converter

■GENERAL DESCRIPTION

The XC9248 series is 18V bootstrap synchronous step-down DC/DC converter with built-in Nch-Nch driver transistors.

With an input voltage range from 4.5V to 18V and a maximum output current of 2.2A, the series is suitable for digital home

appliance power supplies and can be used with small ceramic capacitors.

The series has a 0.8V reference voltage, and using externally connected resistors, the output voltage can be set freely from

1.0V to 12V.

The control method is synchronous PWM (Source/ Sink). The soft start time is internally set to 2.8ms (TYP.), also can be

adjusted using external capacitor.

With UVLO (Under Voltage Lock Out) function, the internal driver transistors are forced OFF when input voltage falls down

below 3.8V (TYP.).

The series includes over current protection, V_OUTshort-circuit protection, Lx short-circuit protection, V_OUTovervoltage

protection and thermal shutdown.

■FEATURES

Input Voltage

■APPLICATIONS

●Digital home appliance

：

4.5V ～ 18V

1.0V～12V (V_FB=0.8V±1.5%) ^(*1)

Output Voltage

●Office automation equipment

●Notebook computers

Output Current

2.2A

Efficiency

93.8% ^(*1)@V_IN=12V,V_OUT=5V, I_OUT=700mA

500kHz

Oscillation Frequency

Maximum Duty Cycle

Soft-Start Time

●Car accessories power supplies

79%

Fixed2.8ms, set by external capacitor

UVLO

Protection Circuit

High side over current protection

Low side over current protection

V_OUTShort-circuit Protection

L_XShort-circuit Protection

V_OUTOver voltage protection

Thermal shutdown

Package

：

SOP-8FD

Environmentally Friendly

EU RoHS Compliant, Pb Free

^(*1)Performance depends on external components and wiring on the PCB.

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

Efficiency vs. Output Current

Ta=25°C

V_IN

L_X

GND

BST

V_L

V_OUT

100

C_BST

C_FB

R_FB1

V_IN=12V , V_OUT=5V

V_IN=12V , V_OUT=3.3V

C_IN

C_SS

C_VL

C_L

R_FB2

500

1000

1500

2000

Output Current : I_OUT[mA]

1/21

12 3 4 5 6 7...21

中文翻译

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