XCL237/XCL238Series
ETR28025-001
HiSAT-COT ® Control 1.5A Inductor Built-in Step-Down “micro DC/DC” Converters
☆Green Operation Compatible
■GENERAL DESCRIPTION
The XCL237/XCL238 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control
IC in one tiny package (3.2mm x 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.
The Output voltage is internally set in a range from 0.8V to 3.6V increments of 0.05V.
HiSAT-COT is a proprietary high-speed transient response technology for DC/DC converter which was minimized output
voltage during load fluctuations. It is Ideal for the applications with large instantaneous load fluctuations such as FPGAs and
equipment that requires stable output voltage.
(*) HiSAT-COT is a proprietary high-speed transient response technology for DC/DC converter which was developed by Torex. It is Ideal for the
LSI's that require high precision and high stability power supply voltage.
■FEATURES
Input Voltage Range
Output Voltage Range
■APPLICATIONS
●Communication equipment / modules
(Bluetooth/Wi-Fi/GPS etc.)
:
:
2.5V ~ 5.5V
0.80V ~ 1.00V (±20mV)
1.05V ~ 3.60V (±2.0%)
Output Current
Oscillation Frequency
Efficiency
:
:
1.5A
●Power supply for MCU/FPGA/ASIC
(POL power supply)
3.0MHz
89%(VIN=3.8V,VOUT=1.8V,IOUT=500mA)
25μA
●Smart phones/Mobile phones
Quiescent Current
Control Methods
:
:
●DSC/Camcorder
HiSAT-COT Control
PWM Control (XCL237)
PWM/PFM Auto (XCL238)
Thermal Shutdown
Current Limit
●Portable game consoles
●Wearable devices
Protection Functions
Functions
:
:
●Active cable/Active optical cable
Short Protection
Soft-Start
UVLO
CL Discharge
Input/Output Capacitor
Operating Ambient Temperature
Packages
:
:
:
:
Ceramic Capacitor
-40℃ ~ 105℃
USP-9B01 (3.2 x 2.5 x 1.0mm)
EU RoHS Compliant, Pb Free
Environmentally Friendly
■TYPICAL APPLICATION
■ TYPICAL PERFORMANCE
CHARACTERISTICS
VOUT(T)=1.8V
CIRCUIT
CIN=10μF(GRM188C81A106KA73)
CL=10μF(GRM188C81A106KA73)
100
90
80
70
60
50
40
VIN
2.5 ~ 5.5V
VOUT
1.8V / 1.5A
LX
L1
VIN
EN
L2
EN
VOUT
CIN
10μF
CL
10μF
PGND AGND
30
XCL237_VIN=3.8V
20
10
0
XCL237_VIN=5.0V
XCL238_VIN=3.8V
XCL238_VIN=5.0V
0.1
1
10
100
1000
Output Current : IOUT [mA]
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