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CM3708GIT Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers |
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2 / 6 page CM3708 3A LOW-NOISE PWM STEP-DOWN REGULATOR 2004/09/15 Rev. 1.2 Champion Microelectronic Corporation Page 2 PIN DESCRIPTION Operating Rating Pin No. Symbol Description Min. Typ. Max. Unit 1,16 VIN1, VIN2 Voltage supply for internal circuits 2 2.5 5 V 2,15 PVIN1, PVIN2 Voltage supply for output power transistors 2 2.5 5 V 3,14 LX1, LX2 Inductor connection to the Drains of the internal power MOSFETs 5 V 4,13 PGND1, PGND2 Ground for output power transistors 5,9,12 AGND Ground for internal reference voltage divider 8 AGSEN Ground for remote sensing 6 SD Shutdown active high. CMOS input level 0.75 x VIN VIN + 0.3V V 7 VREF VOUT Set Voltage 1.1 VIN V 10 NC No Connection 11 VFB Feedback node for the VOUT 5 V BLOCK DIAGRAM PWM Controller Oscillator Ramp Generator Error Amp Thermal Protection MOS VREF AGND 12 AGND AGND 7 9 5 VFB 11 PGND1 4 PGND2 13 LX2 14 LX1 3 PVIN2 15 PVIN1 2 SD 6 VIN2 16 VIN1 1 NC 10 AGSEN 8 |
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