XC9201 Datasheet, PDF (1/20 Pages) Torex Semiconductor – PWM Controlled Step-Down DC/DC Converters

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NInput Voltage Range
: 2.5V ~20V
NOutput Voltage Range
: 1.2V ~ 16V
NOscillation Frequency Range : 100kHz ~
600kHz
NOutput Current
: up to 3.0A
NCeramic Capacitor Compatible
NMSOP-8A Package
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GPalm top computers, PDAs
GPortable games
GCameras, Digital cameras
GLaptops
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The XC9201 series are step-up multiple current and voltage feedback
DC/DC controller ICs. Current sense, clock frequencies and amp
feedback gain can all be externally regulated.
A stable power supply is possible with output currents of up to 3.0A.With
output voltage fixed internally, VOUT is selectable in 0.1V steps within a
1.2V - 16.0V range (± 2.5%).
For output voltages outside this range, we recommend the FB version
which has a 0.9V internal reference voltage. Using this version, the
required output voltage can be set-up using 2 external resistors.
Switching frequencies can also be set-up externally within a range of
100~600 kHz and therefore frequencies suited to your particular
application can be selected.
With the current sense function, peak currents (which flow through the
driver transistor and the coil) can be controlled. Soft-start time can be
adjusted using external resistors and capacitors.
During shutdown (CE pin =L), consumption current can be reduced to as
little as 0.5µA (TYP.) or less and with U.V.L.O
(Under Voltage Lock Out) built-in, the external transistor will be
automatically shut off below the regulated voltage.
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GStable Operations via Current & Voltage Multiple Feedback
GUnlimited Options for Peripheral Selection
GCurrent Protection Circuit
GCeramic Capacitor Compatible
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