ISL85403 datasheet(13/24 Pages) INTERSIL

Part #	ISL85403

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

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Manufacturer	INTERSIL [Intersil Corporation]

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13 / 24 page

ISL85403

13

FN8631.1

March 13, 2015

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FIGURE 21. BOOST BUCK MODE, VO = 9V, IO = 1.8A, BOOST INPUT

DROPS FROM 16V TO 9V DC

FIGURE 22. EFFICIENCY, BOOST BUCK, 500kHz, VOUT 12V,

TA = +25°C

FIGURE 23. UPPER MOSFET rDS(ON) (mΩ) OVER-TEMPERATURE

Typical Performance Curves (Continued)

VOUT 5V/DIV

PHASE_BOOST 20V/DIV

10ms/DIV

IL_BOOST 2A/DIV

PHASE_BUCK 20V/DIV

50

55

60

65

70

75

80

85

90

95

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4

LOAD CURRENT (A)

9V VIN

6V VIN

5V VIN

30V VIN

15V VIN

190

160

150

140

130

120

110

100

DIE TEMPERATURE (°C)

180

170

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