ACT4065 Ver la hoja de datos (PDF) - Active-Semi, Inc

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ACT4065

High Input 2A Step Down Converter

Active-Semi, Inc 

ACT4065

ABSOLUTE MAXIMUM RATINGS

(Note: Exceeding these limits may damage the device. Exposure to absolute maximum rating conditions for long periods may affect device

reliability.)

PARAMETER

IN Supply Voltage

SW Voltage

BS Voltage

EN, FB, COMP Voltage

Continuous SW Current

Maximum Power Dissipation

Junction to Ambient Thermal Resistance (θ JA)

Operating Junction Temperature

Storage Temperature

Lead Temperature (Soldering, 10 sec)

VALUE

UNIT

-0.3 to 30

V

-1 to VIN + 1

V

VSW – 0.3 to VSW + 8

V

-0.3 to 6

V

Internally limited

A

0.76

W

105

°C/W

-40 to 150

°C

-55 to 150

°C

300

°C

ELECTRICAL CHARACTERISTICS

(VIN = 12V, TJ = 25°C unless otherwise specified.)

PARAMETER

Input Voltage

Feedback Voltage

High-Side Switch On Resistance

Low-Side Switch On Resistance

SW Leakage

Current Limit

COMP to Current Limit

Transconductance

Error Amplifier Transconductance

Error Amplifier DC Gain

Switching Frequency

Short Circuit Switching Frequency

Maximum Duty Cycle

Minimum Duty Cycle

Enable Threshold Voltage

Enable Pull Up Current

Supply Current in Shutdown

IC Supply Current in Operation

Thermal Shutdown Temperature

SYMBOL

TEST CONDITIONS

VIN

VOUT = 5V, ILOAD = 1A

VFB VCOMP = 1.5V

RONH

RONL

VEN = 0

ILIM

GCOMP

GEA ΔICOMP = ±10µA

AVEA

fSW

VFB = 0

DMAX VFB = 1.1V

VFB = 1.4V

Hysteresis = 0.1V

Pin pulled up to 4.5V typically when

left unconnected

VEN = 0

VEN = 3V, VFB = 1.4V

Hysteresis = 10°C

MIN

6

1.267

3

160

0.7

TYP

1.293

0.2

8

0

3.5

1.8

550

4000

200

50

93

1

1

8

0.7

160

MAX UNIT

28 V

1.319 V

Ω

Ω

10 µA

A

A/V

µA/V

V/V

240 kHz

kHz

%

0

%

1.3 V

µA

20 µA

mA

°C

Active-Semi, Inc.

-3-

www.active-semi.com

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