DatasheetsPDF.com

XC9505 Dataheets PDF



Part Number XC9505
Manufacturers Torex Semiconductor
Logo Torex Semiconductor
Description Step-up / Inverting DC/DC Controller
Datasheet XC9505 DatasheetXC9505 Datasheet (PDF)

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 vo.

  XC9505   XC9505


Document
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 : 180kHz (±15%) * 300kHz, 500kHz custom Control Method : PWM or PWM/PFM Selectable Stand-by Function : 3.0μA (MAX.) Packages : MSOP-10, USP-10 Environmentally Friendly : EU RoHS Compliant, Pb Free ■TYPICAL APPLICATION CIRCUIT Tr1:Pch MOSFET XP162A12A6P Tr2:Pch MOSFET XP162A12A6P SD2 :MA2Q737 VOUT2:-5.0V ■TYPICAL PERFORMANCE CHARACTERISTICS ●Efficiency vs. Output Current SD1 :MA2Q737 CL1:47uF RFB11 :200kΩ CFB1 :62pF RFB12 :75kΩ VPWM1 VNE1 VIN =5.0V CIN :47uF 1 EXT1/ EXT2/ 10 2 VDD GND 9 3 FB1 FB2 8 4 PWM1 PWM2 7 5 EN1 EN2 6 L2:22uH CDRH5D28 CL2:47uF VPWM2 VNE2 RFB21 :27kΩ RFB22 :11kΩ CFB2 :62pF 1/50 XC9505 Series ■PIN CONFIGURATION 1 EXT1 2 VDD 3 FB1 4 PWM1 5 CEEN11 EXT2 10 GND 9 FB2 8 PWM2 7 CEEN22 6 MSOP-10 (TOP VIEW) ■PIN ASSIGNMENT USP-10 (BOTTOM VIEW) PIN NUMBER 1 2 3 4 5 6 7 8 9 10 PIN NAME EXT 1 VDD FB1 PWM1 EN1 EN2 PWM2 FB2 GND EXT2/ FUNCTIONS Channel 1: External Transistor Drive Pin Supply Voltage Channel 1: Output Voltage Monitor Feedback Pin Channel 1: PWM/PFM Switching Pin Channel 1: Enable Pin Channel 2: Enable Pin Channel 2: PWM/PFM Switching Pin Channel 2: Output Voltage Monitor Feedback Pin Ground Channel 2: External Transistor Drive Pin ■PRODUCT CLASSIFICATION ●Ordering Information XC9505①②③④⑤⑥-⑦(*1) MARK ① ②③ ④ ⑤⑥-⑦ ITEM Type of DC/DC Controller Output Voltage Oscillation Frequency Packages (Oder Unit) SYMBOL B 09 2 3 5 AR AR-G DR DR-G DESCRIPTION Standard type (10 pin) FB products→②=0, ③=9 fixed 180kHz 300kHz (custom) 500kHz (custom) MSOP-10 (1,000/Reel) MSOP-10 (1,000/Reel) USP-10 (3,000/Reel) USP-10 (3,000/Reel) (*1) The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant. 2/50 ■BLOCK DIAGRAM EXT1 VDD PW M/PFM C on troller1 PW M/PFM Con troll er2 PW M Compa rator1 PW M Compa rator2 + - + - FB1 PWM1 CENE1 + - Error Amp1 Ramp W ave Gene rator1 - + Ramp Wave Gene rator2 Error Amp2 OSC Gene rator Vref1=0.9V with Soft Start1, EN1 EN1 to internal circuit EN2 to internal circuit.


XC9504 XC9505 XC9508


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)