Datasheet > XC9280A75CYR-G

XC9280A75CYR-G

更新时间： 2024-11-11 20:10:55

品牌	Logo	应用领域
特瑞仕 - TOREX		开关
页数	文件大小	规格书
28页	1065K
描述
Switching Regulator,

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技术参数
数据手册

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XC9280A75CYR-G 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	2.15
Samacsys Description：	Switching Voltage Regulators 18V Operation 3.0A Synchronous Step-Down DC/DC Converters	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
Base Number Matches：	1

XC9280A75CYR-G 数据手册

XC9280Series

18V Operation 3.0A Synchronous Step-Down DC/DC Converters

ETR05064-001a

■GENERAL DESCRIPTION

The XC9280 series is 18V bootstrap synchronous step-down DC/DC converter with built-in Nch-Nch driver transistors,

the operating voltage range is 4.5V～18.0V, designed to allow the use of ceramic capacitors.

0.75V reference voltage source is incorporated in the IC, and the output voltage can be set to a value from 1.8V to 7.0V using

external resistors (R_FB1, R_FB2).

Switching frequency is 1.2MHz. In PWM/PFM automatic switchover control, IC can change the control method between PWM

and PFM based on the output current requirement and as a result IC can achieve high efficiency over the full load range.

XC9280 has a fixed internal soft start time which is 0.95ms (TYP.), additionally the time can be extended by using an external

resistor and capacitor.

With the built-in UVLO function, the driver transistor is forced OFF when input voltage goes down to 3.33V (TYP.) or lower.

Over current protection and thermal shutdown are embedded and they secure a safety operation.

■FEATURES

Input Voltage Range

Output Voltage Range

FB Voltage

■APPLICATIONS

● Digital TV

4.5V～18V（Absolute Max 20V）

1.8V～7.0V or V_INx 0.7

0.75V±1.5%

● Set Top Box

● Security camera

● Smart meter

Oscillation Frequency

Output Current

1.2MHz

3A peak

● Security system

2.0A DC (V_IN=12V, V_OUT=5V)

PWM/PFM Automatic

0.95ms

Control Method

Soft-start Time

Adjustable by RC

UVLO

Protection Circuits

Over Current Protection

（Automatic Recovery）

Thermal Shutdown

Ceramic Capacitor

Low ESR Ceramic Capacitor

Package

TSOT-26

Environmentally Friendly

EU RoHS Compliant, Pb Free

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

V_IN

BST

C_IN

(ceramic)

C_BST

EN/SS

R_FB1

C_FB

GND

C_L

(ceramic)

R_FB2

1/28

12 3 4 5 6 7...28

中文翻译

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