Datasheet > XC9121

XC9121

更新时间： 2024-11-22 14:53:55

品牌	Logo	应用领域
特瑞仕 - TOREX		/
页数	文件大小	规格书
16页	620K
描述
PWM/PFM

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中文翻译

获取价格

数据手册

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XC9121 数据手册

XC9120/XC9121/XC912

Series

ETR04009-005c

Step-Up DC/DC Controller IC, MAXDUTY: 93%

☆Green Operation Compatible

■GENERAL DESCRIPTION

XC9120/XC9121/XC9122 Series are PWM, PWM/PFM auto/external switching controlled step-up DC/DC converter

controller ICs. Since maximum duty ratio is as large as 93%, the series is the best for the applications used as high step-up

ratios, such as the LCD panels and OLED. In this series, even if it is a high step-up ratio, the output voltage stabilized at high

efficiency can be obtained.

With 0.9V (±2.0%) of reference voltage supply internal, and using external resistors, R_FB1and R_FB2, output voltage can be

set up freely within a range of 1.5V to 30V. For a current sense, with the use of RSENSE, ceramic capacitors can be used as

load capacitors and allows for lower output ripple and reduced PCB area requirements.

Control automatically switches from PWM to PFM during light loads with the XC9121 series and the XC9122 series can

switch the control from PWM to PFM using external signals depending on the circuit conditions.

During stand-by (when the CE pin is low), all circuits are shutdown to reduce current consumption to as low as 1.0μA or

less.

■FEATURES

■APPLICATIONS

Input Voltage Range : 0.9V ~ 6.0V

Operating Voltage Range : 1.8V ~ 6.0V

Output Voltage Range : 1.5V ~ 30V (externally set)

Reference voltage 0.9V (±2.0%)

●Power Supply for the LCDs.

●Organic electroluminescence display (OELD)

Oscillation Frequency : 100kHz (±15%)

Output Current

Control

: ≥80mA (V_IN=3.6V, V_OUT=15V)*

: XC9120 (PWM)

: XC9121 (PWM/PFM Automatic)

: XC9122 (PWM/PFM Externally)

: 85% (TYP.)

High Efficiency

: (V_IN=3.6V, V_OUT=15V, I_OUT=10mA)*

: I_STB=1.0A (MAX.)

Stand-by Function

Load Capacitors

: Low ESR capacitor compatible

Maximum Duty Cycle : 93% (TYP.) for High Step-up Ratio

Packages : SOT-25, USP-6C

* When using external components showing in the circuit below.

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

XC9122D091 (100kHz, 15.0V)

RSENSE : 50m ohm

for Ceramic CL

SD:

XBS104S14R

L : 47uH

L=47uH(CDRH5D28),SD:XB01SB04A2

CL=40uF(Ceramic),Tr:161A11A1

100

CFB : 33pF

RFB2 :

4.2V

RFB1 :

PWM/PFM

470k ohm 30k ohm

VOUT = 15V

Nch Power

MOS FET

XP161A1355

VIN = 2.7V 4.2V

VIN=2.7V

CIN

Ceramic CL :

10uF×4

3.2V

3.6V

PWM

0.1

100

Output Current: IOUT(mA)

1/16

12 3 4 5 6 7...16

中文翻译

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与XC9121相关器件

型号	品牌	获取价格	描述	数据表
XC9122	TOREX	获取价格	PWM/PFM
XC9122B091EL	TOREX	获取价格	Switching Controller,
XC9122B091ER	TOREX	获取价格	Switching Controller,
XC9122B091ER-G	TOREX	获取价格	Switching Controller,
XC9122B091ML	TOREX	获取价格	Switching Controller,
XC9122B091MR	TOREX	获取价格	Switching Controller,
XC9122B091MR-G	TOREX	获取价格	Switching Controller,
XC9122D091EL	TOREX	获取价格	Switching Controller,
XC9122D091EL-G	TOREX	获取价格	Switching Controller,
XC9122D091ER-G	TOREX	获取价格	Switching Controller,