LM2622

SNVS068E – MAY 2000 – REVISED MARCH 2013

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Absolute Maximum Ratings

(1) (2)

12V

SW Voltage

18V

FB Voltage

7V

7V

SHDN Voltage

7V

FSLCT

12V

Maximum Junction Temperature

150°C

Internally Limited

Lead Temperature

300°C

Vapor Phase (60 sec.)

215°C

Infrared (15 sec.)

220°C

ESD Susceptibility

(4)

Human Body Model

2kV

Machine Model

200V

(1)

Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the

device is intended to be functional, but device parameter specifications may not be ensured. For ensured specifications and test

conditions, see the Electrical Characteristics.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

resistance,

the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown.

(4)

The human body model is a 100 pF capacitor discharged through a 1.5k

Ω resistor into each pin. The machine model is a 200pF

capacitor discharged directly into each pin.

Operating Conditions

−40°C to +125°C

Storage Temperature

−65°C to +150°C

Supply Voltage

2V to 12V

(1)

All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are

100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC)

methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

Electrical Characteristics

Min

Typ

Max

Symbol

Parameter

Conditions

Units

(1)

(2)

(1)

Quiescent Current

FB = 0V (Not Switching)

1.3

2.0

mA

5

10

µA

Feedback Voltage

1.2285

1.26

1.2915

V

(3)

Switch Current Limit

(4)

1.0

1.65

2.3

A

Load Regulation

6.7

mV/A

Feedback Voltage Line

2.0V

0.013

0.1

%/V

Regulation

0.5

20

nA

(1)

All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are

100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC)

methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely norm.

(3)

Duty cycle affects current limit due to ramp generator.

(4)

(5)

Bias current flows into FB pin.

4

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