ISL8012 查看數據表（PDF） - Intersil

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ISL8012

2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Intersil 

ISL8012

Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and

the typical specifications are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VCC, unless otherwise noted. Typical values are

at TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

(Note 7) TYP (Note 7) UNITS

LX Minimum On-Time

MODE = low (forced PWM mode)

80 100 ns

Soft-Start-Up Time

PG

VIN = 3.6V

1.1

ms

Output Low Voltage

Sinking 1mA, VFB = 0.7V

0.3

V

Delay Time

1

ms

PG Pin Leakage Current

Minimum Supply Voltage for Valid PG Signal

PG = VIN = 3.6V

0.01 0.1 µA

1.2

V

Internal PGOOD Low Rising Threshold

Percentage of nominal regulation voltage

89 92 95

%

Internal PGOOD Low Falling Threshold

Percentage of nominal regulation voltage

85 88 91

%

Internal PGOOD High Rising Threshold

Percentage of nominal regulation voltage

107 110 113 %

Internal PGOOD High Falling Threshold

Percentage of nominal regulation voltage

104 107 110 %

Internal PGOOD Delay Time

30

µs

EN, MODE, RSI

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

NOTES:

6. Limits established by characterization and are not production tested.

7. 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.

6

December 1, 2011

FN6616.2

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