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6 page 
PRODUCTION DATA SHEET Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 6 Copyright © 2000 Rev. 1.0, 2005-08-10 LX1672 Multiple Output LoadSHARE™ PWM TM ® BLOCK DIAGRAM CS Comp + - Amplifier/ Compensation + - Error Comp + - I RESET R S Q Q V TRIP 20k V REF Ramp Oscillator UVLO L1 R 1 ESR C OUT R 2 C IN +12V +5V V out 1 R SET C SS V CC LO1 HO1 VC1 CS1 FB1 SS I SET PWM I SET +5V EO1 VS1 VCCL PG1 UVLO Hiccup FAULT TEMP SS1 SS2 F R S S S 5.5V DIS1 PWGD (MLP Only) 16V 16V V in Figure 1 – Block Diagram of PWM Phase 1 - +5V +V V REF +12V LDGD LDFB LDDIS VC1 VOUT3 Figure 2 – LDO Controller Block Diagram |
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