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XC9505

Torex Semiconductor
Part Number XC9505
Manufacturer Torex Semiconductor
Description Step-up / Inverting DC/DC Controller
Published May 30, 2007
Detailed Description XC9505 Series 2ch. Step-Down / Inverting DC/DC Controller IC ETR0705_006b ☆GreenOperation-Compatible ■GENERAL DESCRIPT...
Datasheet PDF File XC9505 PDF File

XC9505
XC9505

Overview
XC9505 Series 2ch.
Step-Down / Inverting DC/DC Controller IC ETR0705_006b ☆GreenOperation-Compatible ■GENERAL DESCRIPTION XC9505 series are PWM controlled, PWM/PFM switching 2 channel (step-down and inverting) DC/DC controller ICs.
With 0.
9V of internal standard voltage supply, and using externally connected components, the output 1 voltage (step-down DC/DC controller) can be set freely within a range of 0.
9V to 6.
0V.
Since output 2 (inverting DC/DC controller) has a built-in 0.
9V reference voltage (accuracy ±2%), a negative voltage can be set with the external components.
With a 180 kHz frequency, the size of the external components can be reduced.
Switching frequencies of 300 kHz and 500 kHz are also available as custom designed products.
The control of the XC9505 series can be switched between PWM control and PWM/PFM automatic switching control using external signals.
Control switches from PWM to PFM during light loads when automatic switching is selected and the series is highly efficient from light loads through to large output currents.
Noise is easily reduced with PWM control since the frequency is fixed.
The series gives freedom of control selection so that control suited to the application can be selected.
Soft-start time is internally set to 10ms (output1) which offers protection against rush currents and voltage overshoot when the power is switched on.
■APPLICATIONS ●PDAs ●Palm top computers ●Digital cameras ●Various power supplies ■FEATURES 2 ch.
DC/DC Controller (Step-Down / Inverting) Output Voltage Range : 0.
9V ~ 6.
0V (set by FB1 pin) Output Current : More than 1000mA Maximum Duty Cycle (VIN=5.
0V, VOUT=3.
3V) : 100% Soft-Start Internally Set-Up Output Voltage Range : -30V ~ 0V (set by FB2 pin) Output Current : More than -100mA Maximum Duty Cycle (VIN=5.
0V, VOUT= - 3.
3V) : 80% (TYP.
) Operating Voltage Range : 2.
0V ~ 10.
0V Oscillation Frequency : 18...


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