LM2655MTC-ADJ datasheet(4/16 Pages) NSC

Part #	LM2655MTC-ADJ

Description	2.5A High Efficiency Synchronous Switching Regulator

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Manufacturer	NSC [National Semiconductor (TI)]

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Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (PV

IN)

3.8V

≤ V

IN ≤ 14V

Supply Voltage (AV

IN)

4.0V

≤ V

IN ≤ 14V

Feedback Pin Voltage

-0.4V

≤ V

FB ≤ 5V

V

CB Voltage, (Note 7)

7V

C

SS Voltage

2.5V

Comp Voltage

2.5V

L

DELAY Voltage

2.5V

LDR Voltage

5V

V

SW, (Note 8)

14V

Power Dissipation (T

A =25˚C),

(Note 2)

TSSOP-16 Package

θ

JA

140˚C/W

Power Dissapation

893mW

Lead Temperature

Vapor Phase (60 sec.)

215˚C

Infrared (15 sec.)

220˚C

ESD Susceptibility(Note 3)

Human Body Model(Note 4)

1kV

Machine Model

200V

Operating Ratings (Note 1)

Storage Temperature Range

−65˚C

≤ T

J ≤ +150˚C

Junction Temperature

Range

−40˚C

≤ T

J ≤ +125˚C

LM2655-3.3 Electrical Characteristics

Specifications with standard typeface are for T

J = 25˚C, and those in boldface type apply over full Operating Temperature

Range.V

IN = 10V unless otherwise specified.

Symbol

Parameter

Conditions

Typical

(Note 5)

Limit

(Note 6)

Units

V

OUT

Output Voltage

I

LOAD = 1.5 A

3.3

3.235/3.185

3.392/3.416

V

V(min)

V(max)

V

OUT

Output Voltage Line

Regulation

V

IN = 5V to 14V

I

LOAD = 1.5 A

0.5

0.7

%

%(max)

Output Voltage Load

Regulation

I

LOAD = 100 mA to 2.5A

V

IN =10V

0.6

1.7

%

%(max)

V

INUV

V

IN Undervoltage Lockout

Threshold Voltage

Rising Edge

3.8

3.95

V

V(max)

V

UV_HYST

Hysteresis for the Input

Undervoltage Lockout

210

mV

I

CL(Note 9)

Average Output Current

Limit

V

IN = 5V

V

OUT = 3.3V

3.3

A

LM2655-ADJ Electrical Characteristics

Specifications with standard typeface are for T

J = 25˚C, and those in boldface type apply over full Operating Temperature

Range.V

IN = 10V unless otherwise specified.

Symbol

Parameter

Conditions

Typical

(Note 5)

Limit

(Note 6)

Units

V

FB

Feedback Voltage

I

LOAD = 1.5 A

1.238

1.208/1.181

1.260/1.267

V

V(min)

V(max)

V

OUT

Output Voltage Line

Regulation

V

IN = 5V to 14V

I

LOAD = 1.5 A

0.5

0.7

%

%(max)

Output Voltage Load

Regulation

I

LOAD = 100 mA to 2.5A

V

IN =10V

0.6

1.7

%

%(max)

V

INUV

V

IN Undervoltage Lockout

Threshold Voltage

Rising Edge

3.8

3.95

V

V(max)

V

UV_HYST

Hysteresis for the Input

Undervoltage Lockout

210

mV

I

CL(Note 9)

Average Output Current

Limit

V

IN = 5V

V

OUT = 3.3V

3.3

A

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