ISL8002(2013_01) 데이터 시트보기 (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 1V/DIV

LX 5V/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

500µs/DIV

FIGURE 34. START-UP VIN AT NO LOAD

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

VIN 5V/DIV

PG 5V/DIV

500µs/DIV

FIGURE 35. START-UP VIN AT NO LOAD

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

LX 5V/DIV

VOUT 1V/DIV

VIN 5V/DIV

LX 5V/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

100ms/DIV

FIGURE 36. SHUTDOWN VIN AT NO LOAD

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

PG 5V/DIV

50ms/DIV

FIGURE 37. SHUTDOWN VIN AT NO LOAD

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

LX 1V/DIV

LX 1V/DIV

10ns/DIV

FIGURE 38. JITTER AT NO LOAD

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

14

10ns/DIV

FIGURE 39. JITTER AT FULL LOAD

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

FN7888.1

January 7, 2013

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