Datasheet > XC9140C501MR-G

XC9140C501MR-G

更新时间： 2022-09-29 19:18:30

品牌	Logo	应用领域
特瑞仕 - TOREX		/
页数	文件大小	规格书
32页	2460K
描述
IC REG BST 5V 295MA SYNC SOT-25

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XC9140C501MR-G 数据手册

XC9140 Series

ETR04015-007a

Step-UpSynchronous PFM DC/DC Converter

☆Green Operation Compatible



■ GENERAL DESCRIPTION



The XC9140 series are step-up synchronous DC/DC converters that support ceramic capacitors and have an internal 0.6Ω



(TYP.) Nch driver transistor and an internal 0.65Ω (TYP.) Pch synchronous rectifier switch transistor. PFM control enables a low

quiescent current, making these products ideal for portable devices that require high efficiency.

When the output voltage is 3.3V and the load current is 1mA, startup from an input voltage of V_IN= 0.9V is possible which means that

these products can be used in applications that start using a single alkaline or nickel-metal hydride battery. The output voltage can be

set from 1.8V to 5.0V (±2.0%) in steps of 0.1V.

A version with a UVLO (Under Voltage Lock-out) function is also available. This function enables the prevention of battery leakage by

stopping IC’s operation when the input voltage is low. The standard product has a UVLO release voltage of 1.65V, 2.15V and a

custom version with a release voltage selectable from between 1.65V to 2.2V, in steps of 0.05V, is also available.

■FEATURES

■APPLICATIONS

Input Voltage Range

operating hold voltage 0.7V ~ 5.5V

Start-up voltage 0.9V ~ 5.5V

●

Mouses, Keyboards

Bluetooths

Household use Medical equipments

Remote controls

Output Voltage Setting

Output Current

1.8V ~ 5.0V (±2.0%) 0.1V increments

100mA＠V_OUT=3.3V, V_BAT=1.8V (TYP.)

0.6Ω Nch driver transistor

Game consoles

Driver Transistor

Devices with 1~3 Alkaline, 1~3 Nickel Hydride,

1 Lithium and 1 Li-ion

0.65Ω Pch synchronous rectifier switch transistor

6.3μA (V_BAT=V_OUT+0.5V)

Supply Current

Control Method

PFM Control

High speed transient response

PFM Switching Current

Functions

50mV@V_OUT=3.3V, V_BAT=1.8V, I_OUT=1→50mA

350mA

Load Disconnection (A,B Type)

Bypass Mode (C Type)

C_Ldischarge (B Type), UVLO

Ceramic Capacitor

-40℃ ~ 85℃

Output Capacitor

Operating Ambient Temperature

Packages

SOT-25, USP-6EL

EU RoHS Compliant, Pb Free

Environmentally Friendly

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

●Efficiency vs. Output Current

XC9140A331MR-G(VOUT=3.3V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

100

L=4.7μH

2.5V

VOUT

CL=10μF

3.0V

V_BAT=1.8V

VIN=0.9～5.5V

VBAT

GND

C_IN=4.7μF

IN=10μF

0.01

0.1

100

1000

Output Current : I_OUT(mA)

1/32

12 3 4 5 6 7...32

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