ISL85410 Просмотр технического описания (PDF) - Intersil

Номер в каталоге

Компоненты Описание

производитель

ISL85410

Wide VIN 1A Synchronous Buck Regulator

Intersil 

ISL85410

Efficiency Curves FSW = 500kHz, TA = +25°C (Continued)

1.810

1.809

1.808

1.807

1.806

1.805

1.804

1.803

1.802

1.801

VIN = 15V

VIN = 5V

VIN = 33V

VIN = 12V

VIN = 24V

1.818

1.816

1.814

1.812

1.810

1.808

1.806

1.804

1.802

VIN = 5V

VIN = 12V

VIN = 33V

VIN = 15V

VIN = 24V

1.800

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

OUTPUT LOAD (A)

FIGURE 17. VOUT REGULATION vs LOAD, PWM, VOUT = 1.8V

1.800

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

OUTPUT LOAD (A)

FIGURE 18. VOUT REGULATION vs LOAD, PFM, VOUT = 1.8V

Measurements FSW = 500kHz, VIN = 24V, VOUT = 3.3V, TA = +25°C

LX 20V/DIV

LX 20V/DIV

VOUT 2V/DIV

VOUT 2V/DIV

EN 20V/DIV

PG 2V/DIV

5ms/DIV

FIGURE 19. START-UP AT NO LOAD, PFM

EN 20V/DIV

PG 2V/DIV

5ms/DIV

FIGURE 20. START-UP AT NO LOAD, PWM

LX 20V/DIV

VOUT 2V/DIV

EN 20V/DIV

100ms/DIV

PG 2V/DIV

FIGURE 21. SHUTDOWN AT NO LOAD, PFM

LX 20V/DIV

VOUT 2V/DIV

EN 20V/DIV

100ms/DIV

PG 2V/DIV

FIGURE 22. SHUTDOWN AT NO LOAD, PWM

10

FN8375.2

November 22, 2013

Share Link: