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XC9141 fiches techniques PDF

Torex Semiconductor - 0.8A Step-up DC/DC Converters

Numéro de référence XC9141
Description 0.8A Step-up DC/DC Converters
Fabricant Torex Semiconductor 
Logo Torex Semiconductor 





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XC9141 fiche technique
XC9141/XC9142 Series
ETR04018-001
Load Disconnection Function, 0.8A Step-up DC/DC Converters
GENERAL DESCRIPTION
GreenOperation-compatible
XC9141/XC9142 series are synchronous step-up DC/DC converters with a 0.3(TYP.) N-channel driver transistor and a
0.3(TYP.) synchronous P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 0.8A
by reducing ON resistance of the built-in transistors.
The series are able to start operation under the condition which has 0.9V input voltage to generate 3.3V output voltage with a
100load resistor, suitable for mobile equipment using only one Alkaline battery or one Nickel metal hydride battery.
The output voltage can be set from 1.8V to 5.5V (±2.0%) in steps of 0.1V.With the built-in oscillator, either 1.2MHz or 3.0MHz can
be selected for suiting to your particular application.
During the devices enter stand-by mode, A, D types prevent the application malfunction by CL Discharge Function which can
quickly discharge the electric charge at the output capacitor (CL). B, E types is able to drive RTC etc. by Bypass Switch Function
to maintain continuity between the input and output. C, F types is able to connect in parallel with other power supplies by Load
Disconnection Function which breaks continuity between the input and output. * D, E, and F types are under development.
APPLICATIONS
Portable equipment
Beauty & health equipment
Wearable devices
Game & Hobby
PC Peripherals
Devices with 1~3 Alkaline,
1~3 Nickel Hydride, 1 Lithium and 1 Li-ion
FEATURES
Input Voltage Range
Fixed Output Voltage
Oscillation Frequency
Input Current
Output Current
Control Mode Selection
Load Transient Response
Protection Circuits
Functions
Output Capacitor
Operating Ambient Temperature
Package
Environmentally Friendly
: 0.65V 6.0V
: 1.8V 5.5V (0.1V increments)
: 1.2MHz (±15%), 3.0MHz (±20%)
: 0.8A
: 500mA @VOUT=5.0V, VBAT=3.3V (TYP.)
350mA @VOUT=3.3V, VBAT =1.8V (TYP.)
: PWM (XC9141 Series) or
Auto PWM/PFM (XC9142 Series)
: 100mV
@VOUT=3.3V, VBAT =1.8V,IOUT=1mA200mA
: Over-current limit
Integral latch method (D,E,F type)
Output short-circuit protection (D,E,F type)
: Soft-start
Load Disconnection Function (A,C,D,F type)
CL Auto Discharge Function (A,D type)
Bypass Switch Function (B,E type)
: Ceramic Capacitor
: -40 +85
: SOT-25,USP-6C,WLP-6-01
: EU RoHS Compliant, Pb Free
* D, E, and F types are under development.
TYPICAL APPLICATION CIRCUIT
TYPICAL PERFORMANCE
CHARACTERISTICS
XC9141A33C / XC9142A33C
L=4.7μH(LQH5BPN4R7NT0L)
CIN=10μF(GRM188R60J106M),CL=10μF(GRM188R60J106M)
L=4.7μH
Lx
VOUT
CE CE
VB AT
BAT GND
CIN =10μF
VOUT
CL=10μF
100
90
80
70
60
50
40
30
20
10
0
0.1
VBAT=0.9V
VBAT=1.2V
VBAT=1.8V
VBAT=2.5V
solid line : XC9141
dotted line : XC9142
1 10 100
Output Current : IOUT [mA]
1000
1/30

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