Datasheet LTC3129 (Analog Devices) - 9

LTC3129
block DiagraM
V BST1 SW1 SW2 BST2 IN VIN VCC VREF LDO VCC_GD START VOUT V DRIVER OUT A V VCC 4.1V CC VCC ISENSE D DRIVER B START V 1.175V DRIVER REF VREF I NC SENSE VREF_GD NC C DRIVER RUN + START 0.9V – DRV_B DRV_C DRV_A DRV_D + SD I 1.22V – SENSE + UV – FB 500mA VIN – ILIM + 1.1V 1.175V LOGIC – ENABLE ISENSE UVLO + – V I C SENSE – IZERO – + 20mA + PWM + 1.175V THERMAL + SHUTDOWN – RESET SOFT-START OSC MPPC + 1.175V – PWM – PGOOD 600mV + – 5M – SLEEP CLAMP SLEEP –7.5% + 100mV + GND PGND 3129 BD 3129fc For more information www.linear.com/LTC3129 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts