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XC6367_6368 ETR0401_001.doc
◆Input Voltage Range : 0.9~10.0V
◆Output Voltage Range : 1.5~6.5V(±2.5%)
◆Oscillator Frequency : 300kHz(±15%)
◆PWM/PFM Switching Control (XC6368)
◆High Efficiency : 84% (TYP.)
◆SOT-25 Package
■GENERAL DESCRIPTION
The XC6367/68 series are multi-functional step-up DC/DC
converter controllers with built-in high speed, low ON resistance
drivers.
Large output currents are possible using an externally
connected transistor, coil, diode and capacitor.
Output voltage is selectable in 100mV 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 XC6367/68A, B, and C series is internally set
to 10msec and XC6367/68C, D, and F series regulate soft-star
time by connecting resistors and capacitors externally.
During stand-by (CE pin "Low"), supply current is reduced to
less than 0.5μA.
■APPLICATIONS
●Electronic information organizers
●Palmtops
●Cellular and portable phones
●Portable audio systems
●Various multi-function power supplies
■TYPICAL APPLICATION CIRCUIT
■ TYPICAL PERFORMANCE
CHARACTERISTICS
■FEATURES
Input Voltage Range : 0.9V ~ 10V
Operating Voltage Range
: 2.0V ~ 10V
Output voltage Range :
1.5V ~ 6.5V programmable in
100mV increments (
±
2.5%)
Oscillation Frequency
: 300kHz, 100kHz (
±
15%)
Custom products for
180kHz, 500kHz
Output Current : More than 200mA
(V
IN=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(V
OUT)
Output voltage set-up external(FB)
Package : SOT-25
☆GO-Compatible
