XC9119D10A Ver la hoja de datos (PDF) - TOREX SEMICONDUCTOR

Número de pieza

componentes Descripción

Fabricante

XC9119D10A

1MHz, PWM Controlled, Step-Up DC/DC Converter, Ceramic Capacitor Compatible

TOREX SEMICONDUCTOR 

XC9119D10A Series

1MHz, PWM Controlled,

Step-Up DC/DC Converter, Ceramic Capacitor Compatible

ETR0408_004

■GENERAL DESCRIPTION

The XC9119D01A series is 1MHz, PWM controlled step-up DC/DC converter, designed to allow the use of ceramic

capacitors. With a built-in 2.0Ω switching transistor, the XC9119D01A series can easily provide a step-up operation by using

only a coil, a diode, a capacitor, and a resistor, connected externally.

Since output voltage up to 19.5V (Maximum Lx operating voltage: 20V) can be derived with reference voltage supply of 1.0V

(±2.0%) and external components, the series can easily supply high voltage for various general-purpose power supplies, LCD

panels and organic EL displays.

With a high switching frequency of 1.0MHz, a low profile and small board area solution can be achieved using a chip coil and

an ultra small ceramic output capacitor.

With the current limit function (400mA (TYP.): VDD=3.6V), a peak current, which flows through built-in driver transistors can be

limited. Soft-start time can be adjusted by external resistors and capacitors. The stand-by function enables the output to

be turned off (CE ’L’), that is, the supply current will be less than 1.0μA.

■APPLICATIONS

●Organic electroluminescene display (OELD)

●Power supplies for LCD panels

●Various general-purpose power supplies

■FEATURES

Operating Voltage Range : 2.5V ~ 6.0V

Output Voltage Range : Up to 19.5V externally set-up

: Reference voltage 1.0V +2.0%

Oscillation Frequency

ON Resistance

Efficiency

: 1.0MHz±20%

: 2.0Ω (VDD: 3.6V, VDS: 0.4V)

: 86%

Control

(VOUT=15V, VDD=3.6V, IOUT=10mA)

: PWM control

Stand-by function

Load Capacitor

: STB=1.0μA (MAX.)

: Low ESR cap. such as a

ceramic capacitor compatible

Ultra Small Packages : SOT-25, USP-6C

Lx Limit Current

: 400mA (VDD:3.6V)

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

○Efficiency vs. Output Current

XC9119D10A

VIN

L:22uH

CDRH4D18C

SD

XB01SB04A2BR

VOUT=15V

(up to 19.5V)

RSS

220kΩ

C IN

4.7uF

C SS

0.1uF

VDD

Lx

CE/SS

FB

V SS

RFB1

510kΩ

RFB2

36kΩ

C FB

620pF

CL

10uF

100

90

80

70

60

50

40

30

20

10

0

0.1

6V

5V

4.2V

VIN=2.5V

3.6V

2.7V 3V

T a=25oC

1

10

100

Output Current: IOUT (mA)

1000

1/18

Share Link: