ISL8013AIRZ 데이터 시트보기 (PDF) - Renesas Electronics

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ISL8013AIRZ

3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8013A

Absolute Maximum Ratings (Reference to GND)

VIN, VDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V (DC) or 7V (20ms)

EN, SYNCH, PG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V

LX . . . . . . . . . . . . . . . . -1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)

VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.8V

Recommended Operating Conditions

VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8V to 5.5V

Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 3A

Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C

Thermal Information

Thermal Resistance (Typical, Notes 4, 5)

JA (°C/W) JC (°C/W)

16 Ld 4x4 QFN Package . . . . . . . . . . . . .

39

3

Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product

reliability and result in failures not covered by warranty.

NOTES:

4. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech

Brief TB379.

5. JC, “case temperature” location is at the center of the exposed metal pad on the package underside.

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

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

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

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

MAX

(Note 7) TYP (Note 7)

UNITS

INPUT SUPPLY

VIN Undervoltage Lockout Threshold

VUVLO

Rising, no load

Falling, no load

-

2.6 2.8

V

2.15 2.35 -

V

Quiescent Supply Current

IVIN SYNCH = GND, no load at the output

-

35

-

µA

SYNCH = GND, no load at the output and no switches

-

30 45

µA

switching

Shut Down Supply Current

OUTPUT REGULATION

SYNCH = VDD, FS = 1MHz, no load at the output

ISD

VIN = 5.5V, EN = low

-

6.5 10

mA

-

0.1

2

µA

Reference Voltage

VFB Bias Current

Line Regulation

Soft-Start Ramp Time Cycle

VREF

IVFB

VFB = 0.75V

VIN = VO + 0.5V to 5.5V (minimal 2.8V)

0.790 0.8 0.810

V

-

0.1

-

µA

-

0.2

-

%/V

-

1

-

ms

OVERCURRENT PROTECTION

Current Limit Blanking Time

Overcurrent and Auto Restart Period

Switch Current Limit

Peak Skip Limit

COMPENSATION

tOCON

tOCOFF

ILIMIT

ISKIP

(Note 6)

(Note 6)

-

17

- Clock pulses

-

4

-

SS cycle

4.0 4.8 5.9

A

-

1.2

-

A

Error Amplifier Transconductance

-

20

-

µA/V

Trans-Resistance

RT

0.213 0.25 0.287

Ω

LX

P-Channel MOSFET ON-resistance

VIN = 5V, IO = 200mA

VIN = 2.8V, IO = 200mA

-

50 75

mΩ

-

70 100

mΩ

FN7526 Rev 2.00

November 17, 2014

Page 4 of 16

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