ISL8002(2013_01) Просмотр технического описания (PDF) - Intersil

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ISL8002
(Rev.:2013_01)

Compact Synchronous Buck Regulators

Intersil 

ISL8002, ISL8002A, ISL80019, ISL80019A

Typical Performance Curves (Continued)

LX 5V/DIV

VOUT 20mV/DIV

LX 5V/DIV

VOUT 10mV/DIV

IL 0.5A/DIV

50ms/DIV

FIGURE 40. STEADY STATE AT NO LOAD

FSW = 2MHz, VIN = 5V, MODE = PFM, TA = +25°C

IL 0.5A/DIV

500ns/DIV

FIGURE 41. STEADY STATE AT NO LOAD

FSW = 2MHz, VIN = 5V, MODE = PWM, TA = +25°C

VOUT RIPPLE 50mV/DIV

VOUT RIPPLE 50mV/DIV

IL 1A/DIV

200µs/DIV

FIGURE 42. LOAD TRANSIENT

FSW = 2MHz, VIN = 5V, MODE = PFM, TA = +25°C

LX 5V/DIV

IL 2A/DIV

IL 1A/DIV

200µs/DIV

FIGURE 43. LOAD TRANSIENT

FSW = 2MHz, VIN = 5V, MODE = PWM, TA = +25°C

VOUT 0.5V/DIV

IL 1A/DIV

VOUT 1V/DIV

PG 5V/DIV

5µs/DIV

FIGURE 44. OUTPUT SHORT-CIRCUIT

FSW = 2MHz, VIN = 5V, MODE = PFM, TA = +25°C

15

PG 5V/DIV

500µs/DIV

FIGURE 45. OVERCURRENT PROTECTION

FSW = 2MHz, VIN = 5V, MODE = PWM, TA = +25°C

FN7888.1

January 7, 2013

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