ISL8011 データシートの表示（PDF） - Renesas Electronics

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ISL8011

1.2A Integrated FETs, High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8011

Electrical Specifications

TA = +25°C, VPVIN = VVCC = 3.6V, EN = VCC, L = 1.8µH, C1 = 10µF, C2 = 10µF, IOUT = 0A (see “Typical

Applications” on page 6); Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise

specified. Temperature limits established by characterization and are not production tested. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNITS

POR

Output Low Voltage

Sinking 1mA, FB = 0.7V

-

-

0.3

V

Delay Time

150

200

275

ms

POR Pin Leakage Current

Minimum Supply Voltage for Valid POR Signal

POR = VCC = 3.6V

-

0.01

0.1

µA

1.2

-

-

V

Internal PGOOD Low Rising Threshold

Percentage of Nominal Regulation Voltage

89.5

92

94.5

%

Internal PGOOD Low Falling Threshold

Percentage of Nominal Regulation Voltage

85

88

91

%

Internal PGOOD High Rising Threshold

Percentage of Nominal Regulation Voltage 105.5 108 110.5

%

Internal PGOOD High Falling Threshold

Percentage of Nominal Regulation Voltage

102

105

108

%

Internal PGOOD Delay Time

-

50

-

µs

EN

Logic Input Low

-

-

0.4

V

Logic Input High

1.4

-

-

V

Logic Input Leakage Current

Pulled up to 5.5V

-

0.1

1

µA

Thermal Shutdown

-

150

-

°C

Thermal Shutdown Hysteresis

-

25

-

°C

Typical Operating Performance

100

2.60

VOUT = 3.3V

90

VOUT = 1.8V

80

VOUT = 2.5V

2.55

2.50

70

2.45

60

50

200 350 500 650 800 950 1100

LOAD CURRENT (mA)

FIGURE 1. EFFICIENCY vs LOAD CURRENT (VIN = 5.0V)

2.40

50

250

450

650

850

1050

LOAD CURRENT (mA)

FIGURE 2. VOUT vs LOAD CURRENT (VIN = 5V)

FN9254 Rev 2.00

August 4, 2009

Page 3 of 10

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