YD34063 Datasheet | Wuxi Youda electronics

DESCRIPTION The YD34063 is a monolithic regulator subsystem intended for use as DC to DC converter: This device contains a temperature pensated band-gap reference, a duty-cycle control oscillator, driver and high current output switch. FEATURES - Operation From 3.0V to 40V - Short Circuit Current Limiting - Low Standby Current - Output Switch Current Of 1.5A Without External Transistors - Frequency Of Operation From 100Hz to 100k Hz - Step-up, Step-down or Inverting Switch Regulators BLOCK DIAGRAM E 1 T1 2 A 3 4 C IS CT OSCILLATOR + P. T2 Q S R D 7 8 6 5 B 1.25Vref Wu Xi You Da Electronics Co., Ltd Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China Tel: 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: .e-youda. SHENZHEN OFFICE Tel： 86-755-83740369 Fax： 86-755-83741418 Ver 5.0 1 of 4 2006-7-10 Data Sheet 4 U . .. YOUDA INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage parator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage Switch Collector to Emitter Voltage Driver Collector Voltage Driver Collector Current Switch Current Power Dissipation Operating Junction Temperature Operating Temperature Storage Temperature (Tamb=25℃) VALUE 40 -0.3 ～ +40 40 40 40 40 -55～100 1.5 1.25 150 0～70 -65～150 SYMBOL Vcc Vi(p) Vc(sw) Ve(sw) Vce(sw) Vc(dr) Ic Isw PD Tj Tamb Tstg UNIT V V V V V V m A A W ℃ ℃ ℃ ELECTRICAL CHARACTERISTICS PARAMETER Oscillator Frequency Charging Current Discharging Current Discharge to Charge Current Ratio Current Limit Sense Voltage Output Switch Saturation Voltage Saturation Voltage DC Current Gain Collector OFF Current Threshold Voltage Threshold Voltage Line Regulation Input Bias Current Vce(sat) Vce(sat) h FE Ic(off) Vth Reg IIB f OSC Ichq Idischg K VIPK SYMBOL (Tamb=0～70℃, Vcc=5.0V, Unless otherwise specified) MIN TYP MAX UNIT TEST CONDITIONS Vpin=0V, CT=1.0 Vpin5=5 to 40V Vpin5=5 to 40V V7=Vcc 24 24 140 5.2 250 33 35 190 6.1 300 42 42 260 7.5 350 k Hz μA...