PWM/PFM Switchable Step-up DC/DC Controllers
Description
XC6367/XC6368 Series
PWM Controlled, PWM/PFM Switchable Step-up DC/DC Controllers
ETR0401_006
☆Green Operation Compatible
■GENERAL DESCRIPTION
The XC6367/XC6368 series are multi-functional step-up DC/DC controllers which provide high efficiency outputs by using an externally connected transistor, coil, diode and capacitor.
Output voltage is selectable in 0.
1V increments within a range of 1.
5V ~ 6.
5V (±2.
5%).
For output voltages outside this range, we recommend FB version, which has a 1.
0V internal reference voltage.
Using the FB version, the required output voltage can be set-up using 2 external resistors.
With a 300kHz oscillation frequency, the size of the external components can be reduced.
Control switches from PWM to PFM during light loads with the XC6368 (PWM/PFM switchable) and the series is highly efficient from light loads to large output currents.
Soft start time of XC6367/ XC6368A, B, and E series is internally set to 10ms and XC6367/68C, D, and F series regulate soft-start time by connecting resistors and capacitors externally.
During stand-by (CE pin "L"), supply current is reduced to less than 0.
5μA.
■APPLICATIONS
●E-book Readers / Electronic dictionaries ●Smart phones / Mobile phones ●Note PCs / Tablet PCs ●Digital audio equipments ●Multi-function power supplies
■FEATURES
Input Voltage Range : 0.
9V ~ 10V
Operating Voltage Range : 2.
0V ~ 10V
Output Voltage Range : 1.
5V ~ 6.
5V (0.
1V increments) (±2.
5%)
Oscillation Frequency : 300kHz, 100kHz (±15%)
Custom products for 180kHz, 500kHz
Output Current
: More than 200mA (VIN=1.
8V, VOUT=3.
3V)
High Efficiency
: 84% (TYP.
)
Stand-by capability : ISTB=0.
5μA (MAX.
)
Selection
: Soft-start set-up external
Output voltage set-up internal (VOUT)
Output voltage set-up external (FB)
PWM/PFM Control (XC6368)
Package
: SOT-25
Environmentally Friendly : EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT ■ TYPICAL PERFORMANCE CHARACTERISTICS
1/28
XC6367/XC6368 Series
■PIN CONFIGURATION
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）
■PI...
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