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ISL8014

4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Intersil 

ISL8014

Electrical Specifications

PARAMETER

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

the typical specification are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VDD,

unless otherwise noted. Typical values are at TA = +25°C. (Continued)

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNITS

N-Channel MOSFET ON-Resistance

LX Maximum Duty Cycle

VIN = 5V, IO = 200mA

VIN = 2.7V, IO = 200mA

-

50

75

mΩ

-

70

100

mΩ

-

100

-

%

PWM Switching Frequency

LX Minimum On-Time

fS

SYNCH = High

0.80

1.0

1.20 MHz

-

-

140

ns

PG

Output Low Voltage

Sinking 1mA

-

-

0.3

V

Delay Time (Rising Edge)

0.65

1

1.35

ms

PG Pin Leakage Current

PG = VIN = 3.6V

-

0.01

0.1

µA

PGOOD Rising Threshold

Percentage of regulation voltage

89

92

95

%

PGOOD Falling Threshold

Percentage of regulation voltage

85

88

91

%

PGOOD Delay Time (Falling Edge)

-

15

-

µs

EN, SYNCH

Logic Input Low

-

-

0.4

V

Logic Input High

1.4

-

-

V

Synch Logic Input Leakage Current

Enable Logic Input Leakage Current

Thermal Shutdown

ISYNCH Pulled up to 5.5V

IEN

-

0.1

1

μA

-

0.1

1

μA

-

140

-

°C

Thermal Shutdown Hysteresis

-

25

-

°C

NOTE:

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

5

FN6576.1

December 20, 2007

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