ISL85403 View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ISL85403

2.5A Regulator with Integrated High-side MOSFET for Synchronous Buck or Boost Buck Converter

Intersil 

ISL85403

Typical Performance Curves (Continued)

200

180

160

140

120

100

80

60

40

20

0-50

VIN = 12V

VIN = 24V

-25

0

25

50

75

100

125

AMBIENT TEMPERATURE (°C)

FIGURE 9. INPUT QUIESCENT CURRENT UNDER NO LOAD,

PFM MODE, VOUT = 5V

VOUT 2V/DIV

PHASE 20V/DIV

2ms/DIV

FIGURE 10. SYNCHRONOUS BUCK MODE, VIN 36V, IO 2A,

ENABLE ON

VOUT 2V/DIV

PHASE 20V/DIV

2ms/DIV

FIGURE 11. SYNCHRONOUS BUCK MODE, VIN 36V, IO 2A,

ENABLE OFF

VOUT 20mV/DIV (5V OFFSET)

PHASE 20V/DIV

5µs/DIV

FIGURE 13. SYNCHRONOUS BUCK WITH FORCE PWM MODE,

VIN 36V, IO 2A

Submit Document Feedback 11

VOUT 2V/DIV

PHASE 20V/DIV

2ms/DIV

FIGURE 12. VIN 36V, PREBIASED START-UP

VOUT 100mV/DIV (5V OFFSET)

IOUT 1A/DIV

PHASE 20V/DIV

1ms/DIV

FIGURE 14. VIN 24V, 0 TO 2A STEP LOAD, FORCE PWM MODE

FN8631.1

March 13, 2015

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