ISL8025 Ver la hoja de datos (PDF) - Intersil

Número de pieza

componentes Descripción

fabricante

ISL8025

Compact Synchronous Buck Regulators

Intersil 

ISL8025, ISL8025A

Typical Operating Performance Unless otherwise noted, operating conditions are: TA = +25°C, VVIN = 5V, EN = VIN,

SYNC = VIN, L = 1.0µH, C1 = 22µF, C2 = 2 x 22µF, IOUT = 0A to 5A). (Continued)

PHASE 5V/DIV

PHASE 5V/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

500µs/DIV

FIGURE 31. START-UP VIN AT NO LOAD (PFM)

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

500µs/DIV

FIGURE 32. START-UP VIN AT NO LOAD (PWM)

PHASE 5V/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

2ms/DIV

FIGURE 33. SHUTDOWN VIN AT NO LOAD (PFM)

PHASE 1V/DIV

PHASE 5V/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

2ms/DIV

FIGURE 34. SHUTDOWN VIN AT NO LOAD (PWM)

PHASE 1V/DIV

10ns/DIV

FIGURE 35. JITTER AT NO LOAD PWM

13

10ns/DIV

FIGURE 36. JITTER AT FULL LOAD PWM

FN8357.0

February 20, 2013

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