Datasheet LT3514 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Triple Step-Down Switching Regulator with 100% Duty Cycle Operation |
| Pages / Page | 26 / 10 — BLOCK DIAGRAM |
| File Format / Size | PDF / 482 Kb |
| Document Language | English |
BLOCK DIAGRAM
Model Line for this Datasheet
Text Version of Document
LT3514
BLOCK DIAGRAM
PRECISION UVLO 1.44V ON SW5 REF BOOST ERROR AMP EN/UVLO BOOST SWITCH AND DRIVE SKY S VIN VIN R NQ Q5 4.5V 5V VIN 1µA SKYBAD 0.7V SKY Σ D5 0.4V LOCK 1SHOT BOOST REGULATOR STARTUP/SHUTDOWN THERMAL SHUTDOWN SLOPE CLK1 CLK2 TO CH3, CH4 SKY OSC SLOPE 1SHOT V 0 IN SYNC 1 FREQUENCY DETECT TO CURRENT 2.2V 0.7V S Σ 0.8V R NQ Q1 1µA SW1 0.1V OUT1 SWITCH AND DRIVE + SKYBAD – DA1 SKYBAD FB1 ONE OF THREE BUCK REGULATORS SHOWN 0.8V CURRENT LIMIT FOLDBACK PG PGOOD 0.72V FB1 COMPARATORS FROM OTHER CHANNELS POWER GOOD LOGIC RT/SYNC RUN/SS1 GND 3514 BD 3514fa 10 For more information www.linear.com/LT3514 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
BLOCK DIAGRAM
PRECISION UVLO 1.44V ON SW5 REF BOOST ERROR AMP EN/UVLO BOOST SWITCH AND DRIVE SKY S VIN VIN R NQ Q5 4.5V 5V VIN 1µA SKYBAD 0.7V SKY Σ D5 0.4V LOCK 1SHOT BOOST REGULATOR STARTUP/SHUTDOWN THERMAL SHUTDOWN SLOPE CLK1 CLK2 TO CH3, CH4 SKY OSC SLOPE 1SHOT V 0 IN SYNC 1 FREQUENCY DETECT TO CURRENT 2.2V 0.7V S Σ 0.8V R NQ Q1 1µA SW1 0.1V OUT1 SWITCH AND DRIVE + SKYBAD – DA1 SKYBAD FB1 ONE OF THREE BUCK REGULATORS SHOWN 0.8V CURRENT LIMIT FOLDBACK PG PGOOD 0.72V FB1 COMPARATORS FROM OTHER CHANNELS POWER GOOD LOGIC RT/SYNC RUN/SS1 GND 3514 BD 3514fa 10 For more information www.linear.com/LT3514 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
