Datasheet LTM4619 (Analog Devices) - 5

LTM4619
Typical perForMance characTerisTics (Refer to Figures 19 and 20) 1.2V Output Transient Response 1.5V Output Transient Response 2.5V Output Transient Response
IOUT IOUT IOUT 1A/DIV 1A/DIV 1A/DIV VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV 100µs/DIV 4619 G04 100µs/DIV 4619 G05 100µs/DIV 4619 G06 6VIN 1.2VOUT AT 2A/µs LOAD STEP 6VIN 1.5VOUT AT 2A/µs LOAD STEP 6VIN 2.5VOUT AT 2A/µs LOAD STEP f = 780kHz f = 780kHz f = 780kHz COUT 2× 22µF, 6.3V X5R CERAMIC COUT 2× 22µF, 6.3V X5R CERAMIC COUT 2× 22µF, 6.3V X5R CERAMIC COUT 1× 330µF, 6.3V SANYO POSCAP COUT 1× 330µF, 6.3V SANYO POSCAP COUT 1× 330µF, 6.3V SANYO POSCAP
3.3V Output Transient Response Start-Up, IOUT = 0A Start-Up, IOUT = 4A
IOUT VIN VIN 1A/DIV 1V/DIV 1V/DIV VOUT 50mV/DIV IIN IIN 0.5A/DIV 0.5A/DIV 100µs/DIV 4619 G07 20ms/DIV 4619 G08 20ms/DIV 4619 G09 6VIN 3.3VOUT AT 2A/µs LOAD STEP VIN = 12V, VOUT = 2.5V, IOUT = 0A VIN = 12V, VOUT = 2.5V, f = 780kHz COUT = 2× 22µF 10V IOUT = 4A RESISTIVE LOAD COUT 2× 22µF, 6.3V X5R CERAMIC AND 1× 100µF 6.3V CERAMIC CAPs COUT = 2× 22µF 10V, COUT 1× 330µF, 6.3V SANYO POSCAP CSOFTSTART = 0.1µF AND 1× 100µF 6.3V CERAMIC CAPs USE RUN PIN TO CONTROL START-UP CSOFTSTART = 0.1µF USE RUN PIN TO CONTROL START-UP
Short Circuit, IOUT = 0A Short Circuit, IOUT = 4A
VOUT VOUT 1V/DIV 1V/DIV IIN 0.5A/DIV IIN 0.5A/DIV 50µs/DIV 4619 G10 50µs/DIV 4619 G11 VIN = 12V, VOUT = 2.5V, IOUT = 0A VIN = 12V, VOUT = 2.5V, IOUT = 4A COUT = 2× 22µF 10V, COUT = 2× 22µF 10V, AND 1× 100µF 6.3V CERAMIC CAPs AND 1× 100µF 6.3V CERAMIC CAPs 4619fc For more information www.linear.com/LTM4619 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photograph Related Parts Design Resources