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Torex Semiconductor - 1.0A Inductor Built-in Step-Down Converters

Numéro de référence XCL220
Description 1.0A Inductor Built-in Step-Down Converters
Fabricant Torex Semiconductor 
Logo Torex Semiconductor 





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XCL220 fiche technique
XCL219/XCL220 Series
ETR28010-001
1.0A Inductor Built-in Step-Down “micro DC/DC” Converters
GENERAL DESCRIPTION
GreenOperationCompatible
The XCL219/XCL220 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control
IC in one tiny package (2.0mm×2.5mm, h=1.0mm). An internal coil simplifies the circuit and enables minimization of noise and
other operational trouble due to the circuit wiring. A wide operating voltage range of 2.5V to 5.5V enables support for
applications that require an internally fixed output voltage (0.8V to 3.6V). The XCL219/XCL220 series uses synchronous
rectification at an operating frequency of 3.0MHz. The XCL219/XCL220 series uses HiSAT-COT (*) synchronous rectification.
HiSAT-COT+PWM control (XCL219) or HiSAT-COT+automatic PWM/PFM switching control (XCL220) can be selected.
The series have a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock
Out) function, the internal P-channel driver transistor is forced OFF when input voltage becomes 2.0V or lower. When CE=Low,
the integrated CL discharge function which enables the electric charge at the output capacitor CL to be discharged via the internal
discharge switch located between the LX and VSS pins. The power consumption will be less than 1.0μA.
(*) HiSAT-COT is an original Torex term for High Speed Transient Response.
APPLICATIONS
Note Book PC
Tablet PC
SSD(Solid State Drive)
Mobile phone
Digital still camera
Portable game machine
FEATURES
Input Voltage
Output Voltage
Oscillation Frequency
Output Current
Efficiency
Control Methods
Circuit Protection
Functions
: 2.5V5.5V
: 0.8V3.6V(±2.0%)
: 3.0MHz
: 1.0A
: 93% (VIN=5.0V, VOUT=3.3V/300mA)
: HiSAT-COT
100% Duty Cycle
HiSAT-COT+PWM (XCL219)
HiSAT-COT+PWM/PFM (XCL220)
: Thermal Shut Down
Current Limit Circuit (Drop)
Short Circuit Protection (Latch)
: Soft-start Circuit Built-in
UVLO
CL Discharge
Output Capacitor
: Low ESR Ceramic Capacitor
Operating Ambient Temperature : -40℃~+105
Package
Environmental Friendly
: CL-2025-02
: EU RoHS Compliant, Pb Free
TYPICAL APPLICATION CIRCUIT
TYPICAL PERFORMANCE
CHARACTERISTICS
XCL219/XCL220 (VOUT=3.3V)
100
1.0A
CL
10μF
7
1 Lx
VIN 6
2 AGND PGND 5
3 VOUT
8
CE 4
CIN
4.7μF
80
60
40
20
0
0.1
XCL220
XCL219
VIN=5.0V
1 10 100
Output Current : IOUT (mA)
1000
1/20

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