Datasheet > XCL303A052KR-G

XCL303A052KR-G

更新时间： 2022-06-24 15:43:03

品牌	Logo	应用领域
特瑞仕 - TOREX		/
页数	文件大小	规格书
24页	778K
描述
Inductor Built-in Negative Output Voltage âmicro DC/DCâ Converters

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XCL303A052KR-G 数据手册

XCL303/XCL304 Series

ETR28016-001

Inductor Built-in Negative Output Voltage “micro DC/DC” Converters

☆Green Operation Compatible

■GENERAL DESCRIPTION

The XCL303/XCL304 series are small coil-integrated negative voltage micro DC/DC converter IC. The oscillating frequency is a

fast 2.5MHz and the small 2.5 x 2.0 x 1.0mm package contributes significantly to space saving in PCB area.

Further, integrating the coil together with the DC/DC simplifies the circuit board layout and minimizes potential noise interference.

Compared to a charge pump type solution, the switching method of the XCL303/XCL304 maintains a stable output voltage even

when the input voltage fluctuates. In addition, this new micro DC/DC can support larger output current than a charge pump

solution.

The PWM controlled XCL303 series can be selected for applications where low noise is important, and the PWM/PFM automatic

switching controlled XCL304 series can be selected for applications where high efficiency at light load current and low noise at

high load current is important.

The XCL303/XCL304 series allows users to select either a PWM control or PWM/PFM automatic switching control method,

which are optimum for applications where low noise and high efficiency are important.

Output voltage can be adjusted within the range of -1.2V to -6.0V using externally mounted resistors.

■FEATURES

Input Voltage Range

Output Voltage Range

FB Voltage

■APPLICATIONS

2.7V ~ 5.5V

●

Negative power supply for Optical transceiver

-1.2V ~ -6.0V

Negative power supply for AMP

0.5V ± 10mV

Negative power supply for LCD

V_REFVoltage

1.6V ± 40mV

Output Current

300mA @V_OUT=-3.0V, V_IN=3.3V(TYP.)

250μA (TYP.)

Negative power supply for CCD

Quiescent Current

Control Methods

General purpose Negative power supply

PWM Control (XCL303 Series)

PWM/PFM Control (XCL304 Series)

2.5MHz

Oscillation Frequency

Protection Function

Function

Current Limit (1.1A TYP.)

Soft Start Time External Adjustment

UVLO

Operating Ambient Temperature

Packages

-40 ~ +105℃

CL-2025-02 (2.5 x 2.0 x 1.0mm)

EU RoHS Compliant, Pb Free

Environmentally Friendly

■TYPICAL PERFORMANCE

■TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

XCL303/304 (V_IN= 3.7V, V_OUT= -3.3V)

C_IN=10μF(GRM188D71A106KA73),C_L=10μF(GRM188D71A106KA7)

SD=PMEG2010BELD, R_FB1=150kΩ, R_FB2=43kΩ

V_IN

GND

L_x

R_FB1

C_IN

R_FB2

C_L

V_REF

C_VREF

1/24

12 3 4 5 6 7...24

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