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| - NPager Use NDuty Ratio NCMOS Structure : Low Noise : 75% : Small Supply GPagers GPalmtops GCameras, Video cameras GVarious portable products Current NOperating Voltage Range : 0.9~10.0V NOutput Voltage Range : 2.0~7.0V NOutput Voltage Accuracy : 2.5% The XC6385 series are a group of PFM (frequency) controlled step-up DC/DC converters. The XC6385 series employs CMOS process and laser trimming technologies to attain low power and high accuracy. A common problem among pagers is one of noise, but with the XC6385, high frequency noise that occurs during switching is reduced. Output voltage is selectable in 0.1V steps within 2.0V ~ 7.0V and maximum frequency is 100kHz (Typ.) With a built-in switching transistor, a step-up circuit can be configured using a coil, diode and capacitor connected externally. Also available is a CE (chip enable) function that reduces power consumption during shut-down mode, and an independent VDD pin function (separated power supply and voltage detect pins) for fly-back circuits. SOT-89-5 and SOT-23/25 small packages. 4 Low noise Operating voltage range : 0.9V~10V Output voltage range : 2.0V~7.0V (programmable in 0.1V steps) Output voltage accuracy: 2.5% Maximum oscillator frequency : 100kHz (15%) Built-in switching transistor CE function and/or separated VDD/VOUT types selectable with 5 pin packages Small package : SOT-23/25 mini-mold (3pin, 5pin) SOT-89/89-5 mini-power mold (3 pin, 5 pin) For typical application circuit and electrical characteristics of XC6385 series, please refer to that of XC6382 series. For more detail, please contact Torex sales offices or sales person. 525 GSelection Guide PARAT TYPE XC6385A DUTY RATIO 75% PACKAGE SOT-23 SOT-89 SOT-23 SOT-89-5 SWITCHING CE TRANSISTOR FUNCTION Built-in NO VDD PIN NO FEATURES Duty Ratio 75% Stand-by (CE) function During stand-by (CE pin "Low"), Supply current = 0.50A (max) Since the power supply (VDD) pin and the voltage sensor (VOUT) pin are separated, use as a PFM controller is possible. XC6385C 75% Built-in YES NO XC6385E 75% SOT-23 SOT-89-5 Built-in NO YES 4 GOrdering Information XC6385qwerty XC6385 Series A q C E w e r 1 M t P y R L Package PFM Controlled Duty 75% 3-pin. Built-in switching transistor Stand-by capability. (5-pin) Built-in switching transistor Stand-by capability. (5-pin) Built-in switching transistor Output Voltage e.g.VOUT=3.5V w=3, e=5 Maximum Oscillator Frequency Package q=A q=C, E q=A q=C, E 100kHz SOT-23 SOT-25 SOT-89 SOT-89-5 Embossed tape: Standard Feed Embossed tape: Reverse Feed 526 GSOT-23 4 GSOT-25 527 GSOT-89 4 GSOT-89-5 528 qwer qwer w q r e 2 1 4 3 q w 4 e r 529 Note: The CE pin is set up for XC6385C. 4 Note: The VDD pin is set up for XC6385E. For electrical characteristics of XC6385 series, please refer to that of XC6382 series. For more detail, please contact Torex sales offices or sales person. 530 GXC6385A301 (Outut Voltage = 3.0V) (1) OUTPUT VOLTAGE vs. OUTPUT CURRENT (2) EFFICIENCY vs. OUTPUT CURRENT Output Voltage:VOUT (V) Efficiency:EFFI (%) Output Current:IOUT (mA) Output Current:IOUT (mA) (3) RIPPLE VOLTAGE vs. OUTPUT CURRENT (4) NO LOAD INPUT CURRENT vs. INPUT VOLTAGE 4 Ripple Voltage:Vr (mVp-p) Output Current:IOUT (mA) Input Current:IIN (A) Input Voltage:VIN (V) 531 |
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