2ch. Step-Down / Inverting DC/DC Controller

XC9505 series are PWM controled, PWM/PFM automatic switching, 2 channel (step-down and inverting) DC/DC controller ICs. With 0.9V of standard voltage supply internal, 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 the output 2 (inverting DC/DC controller) has a built-in 0.9V reference voltage (±2.0%), negative voltage can be set with the external components.

With a 180kHz frequency, the size of the external components can be reduced. Switching frequencies of 300kHz and 500kHz frequency 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.

Feature

2chDC/DC ControllerOutput1 : Step-down DC/DC Controller
Output2 : Inverting DC/DC Controller
Soft-StartInternally Set-Up
Output Voltage RangeOutput 1: 0.9V~6.0V ,Can be set freely with 0.9V (±2.0%) of reference voltage supply and external components
Output2 : -30.0V~0V ,Can be set freely with 0.9V (±2.0%) of reference voltage supply and external components
Output CurrentOutput1 :more than 1000mA (VIN=5.0V, VOUT=3.3V),Output2 :more than -100mA (VIN=5.0V, VOUT= -3.3V)
Stand-by Current3.0μA(MAX)
Power Supply Voltage Range2.0V～10V
Oscillation Frequency180kHz±15%, 300kHz、500kHz are available as custom

Typical Application Circuit

Quality Reports

Technical Document

Packages

Package Number of Pins Pcs/Reel Package Size(mm)
MSOP-10 10 1,000 4.9 x 3.0 x 1.16
USP-10 10 3,000 2.5 x 2.7 x 0.6

XC9505 Series Part Numbers

Part number Sample Output Voltage Oscillation Frequency Packages EDA Online Store
XC9505B092AR-G 0.9V 180kHz MSOP-10
XC9505B092DR-G 0.9V 180kHz USP-10
XC9505B093AR-G 0.9V 300kHz MSOP-10
XC9505B093DR-G 0.9V 300kHz USP-10
XC9505B095AR-G 0.9V 500kHz MSOP-10
XC9505B095DR-G 0.9V 500kHz USP-10

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