Datasheet > XC9264

XC9264

更新时间： 2024-09-30 01:17:19

品牌	Logo	应用领域
特瑞仕 - TOREX		/
页数	文件大小	规格书
30页	1060K
描述
18V Operation 0.5A Synchronous Step-Down DC/DC Converters

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中文翻译

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数据手册

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XC9264 数据手册

XC9263/XC9264Series

ETR05047-001

18V Operation 0.5A Synchronous Step-Down DC/DC Converters

■GENERAL DESCRIPTION

The XC9263/64 series are 18V operation synchronous step-down DC/DC converter ICs with a built-in high-side / low-side driver

transistor. The XC9263/64 series has operating voltage range of 3.0V～18.0V and it can support 0.5A as an output current with

high-efficiency. Compatible with Low ESR capacitors such as ceramic capacitors for the load capacitor (C_L).

0.75V reference voltage source is incorporated in the IC, and the output voltage can be set to a value from 1.0V to 15.0V using

external resistors (R_FB1, R_FB2).

500kHz or 1.2MHz or 2.2MHz can be selected for the switching frequency. 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.

XC9263/64 has a fixed internal soft start time which is 1.0ms (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 2.7V or lower.

The output state can be monitored using the power good function.

Over current protection, short-circuit protection and thermal shutdown are embedded and they secure a safety operation.

■APPLICATIONS

● Hot water supply system

● Recorders, Camcorders

● Refrigerators, Air-conditioners

● Low Power Systems

■FEATURES

Input Voltage Range

FB Voltage

3～18V（Absolute Max 20V）

0.75V±1.5%

Oscillation Frequency

Output Current

500kHz, 1.2MHz, 2.2MHz

0.5A

Control Methods

PWM/PFM Auto

Efficiency 85%@12V→5V, 1mA

PWM control

Soft-start Time

Adjustable by RC

Protection Circuits

Over Current Protection

Automatic Recovery

(XC9263B/XC9264B)

Integral Latch Method

(XC9263A/XC9264A)

Thermal Shutdown

Low ESR Ceramic Capacitor

Package

Ceramic Capacitor

SOT-25 (no Power good)

USP-6C

Environmentally Friendly

EU RoHS Compliant, Pb Free

■TYPICAL PERFORMANCE

■TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

(V_IN=12V, V_OUT=5V, f_OSC=1200kHz)

XC9264x75C

L=4.7μH(CLF6045NIT-4R7), C_IN=2.2μF(GRM188R61H225KE11),

C_L=10μF×2 (GRM188R61E106MA73)

100

V_IN

C_IN

R_FB1

C_FB

EN/SS

XC9264x75C

C_L

R_FB2

R_PG

0.1

100

GND

Output Current :I_OUT[mA]

1/30

12 3 4 5 6 7...30

中文翻译

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与XC9264相关器件

型号	品牌	获取价格	描述	数据表
XC9264A755ER-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC 6USP
XC9264A755MR-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC SOT25
XC9264A75CER-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC 6USP
XC9264A75CMR-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC SOT25
XC9264A75DER-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC 6USP
XC9264A75DMR-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC SOT25
XC9264B755ER-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC 6USP
XC9264B755MR-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC SOT25
XC9264B75CER-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC 6USP
XC9264B75CMR-G	TOREX	获取价格	IC REG BUCK ADJ 0.5A SYNC SOT25

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