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XC9801_2 Datasheet, PDF (1/12 Pages) Torex Semiconductor – Regulated Voltage Step-Up Charge Pump ICs | |||
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XC9801/XC9802 Series
Regulated Voltage Step-Up Charge Pump ICs
ETR0802_003a
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ç ËçGENERAL DESCRIPTION
ç The XC9801 series are fixed regulated voltage step-up charge pump ICs which provide stable, highly efficient, positive
ç voltages with the only external components required being 2 capacitors.
Since regulating is done via the control of the charge pump's gate voltage waveform, ripple is minimal. Output voltage is
selectable in 100mV steps within a 2.5V ~ 6.0V range.
Control of the XC9802 switches to PFM (pulse skip) during light loads without affecting output impedance or ripple so that the
IC is protected against drops in efficiency. Connecting the SENSE pin to the GND pin allows the IC to be used as a voltage
doubler.
As well as the ultra small MSOP-8A and USP-8 packages, the small consumption current and high efficiencies of the series
make the XC9801 suitable for use with all types of battery operated applications.
ËAPPLICATIONS
ËPalm top computers, PDAs
ËOn board local power supplies
ËVarious battery powered devices
ËFEATURES
Input Voltage Range
: 1.8V ~ 5.5V
Output Voltage Range
: 2.5V ~ 6.0V
Small Input Current
: 80ÐA (no load:XC9802)
Output Current
: 80mA (3.6VË 5.0V step-up)
Oscillation Frequency
: 300kHz
Stand-by Current (CE âLâ) : 2.0ÐA (MAX.)
PFM Operation During Light Loads (XC9802)
CE (Chip Enable) Function
Can be used as a step-up doubler (sense = 0V)
Packages
: MSOP-8A, USP-8
Environmentally Friendlyç : EU RoHS Compliant, Pb Free
ËTYPICAL APPLICATION CIRCUIT
Regulation Output
ËTYPICAL PERFORMANCE
CHARACTERISTICS
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