LP3962, LP3965

www.ti.com

SNVS066H – MAY 2000 – REVISED APRIL 2013

Operating Ratings

2.5V to 7.0V

Shutdown Input Voltage (Operating)

Maximum Operating Current (DC)

1.5A

Operating Junction Temp. Range

−40°C to +125°C

(1)

Electrical Characteristics

LP3962/LP3965

Symbol

Parameter

Conditions

Units

Min

Max

10 mA

-1.5

+1.5

0

%

-3.0

+3.0

Adjust Pin Voltage (ADJ version)

10 mA

1.198

1.234

1.216

V

1.180

1.253

Output Voltage Line Regulation

0.02

%

(3)

0.06

Output Voltage Load

0.04

%

0.09

38

45

55

mV

380

450

550

4

9

10

Ground Pin Current In Normal

mA

Operation Mode

5

14

15

Ground Pin Current In Shutdown

15

25

µA

75

Peak Output Current

2.5

2.0

A

1.7

SHORT CIRCUIT PROTECTION

Short Circuit Current

4.5

A

OVER TEMPERATURE PROTECTION

Tsh(t)

Shutdown Threshold

165

°C

Tsh(h)

Thermal Shutdown Hysteresis

10

°C

SHUTDOWN INPUT

Output = High

Shutdown Threshold

V

Output = Low

0

0.2

Turn-off delay

20

µs

(1)

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

(2)

Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using

Statistical Quality Control (SQC) methods. The limits are used to calculate TI's Average Outgoing Quality Level (AOQL).

(3)

Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the input line voltage.

Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in load current. The line

and load regulation specification contains only the typical number. However, the limits for line and load regulation are included in the

output voltage tolerance specification.

(4)

Dropout voltage is defined as the minimum input to output differential voltage at which the output drops 2% below the nominal value.

Dropout voltage specification applies only to output voltages of 2.5V and above. For output voltages below 2.5V, the drop-out voltage is

nothing but the input to output differential, since the minimum input voltage is 2.5V.

(5)

This specification has been tested for

conditions.

(6)

At elevated temperatures, devices must be derated based on package thermal resistance. The devices in TO-220 package must be

derated at

surface-mount package must be derated at

package must be derated at

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