LP2952-N, LP2952A, LP2953, LP2953A

SNVS095F – MAY 2004 – REVISED MARCH 2015

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Pin Functions LP2953

PIN

I/O

DESCRIPTION

NAME

SOIC(D)

PDIP(NBG)

COMPIN

10

15

I

Auxiliary comparator input

COMPOUT

11

14

O

Auxiliary comparator output

ERROR

6

10

O

Error signal output

FEEDBACK

14

2

I

Error amplifier noninverting input

GROUND

1, 8, 9, 16

4, 5, 12, 13

-

Ground

IN

15

3

I

Regulator power input

NC

2, 7

7, 11

-

NC

OUT

3

6

O

Regulated output voltage

REFERENCE

12

16

O

Internal reference voltage output

SENSE

4

8

I

Feedback voltage sense input

SHUTDOWN

5

9

I

Shutdown input

VTAP

13

1

I

Internal resistor divider input

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

Power dissipation(2)

Internally Limited

Input supply voltage

−20

30

V

FEEDBACK input voltage(3)

−0.3

5

V

Comparator input voltage(4)

−0.3

30

V

SHUTDOWN input voltage(4)

−0.3

30

V

Comparator output voltage(4)

−0.3

30

V

Maximum junction temperature

150

°C

Storage temperature, Tstg

−65

150

°C

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction-to-ambient thermal

resistance, RθJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated

using the equation for P(MAX): P(MAX) = (TJ(MAX) – TA) / RθJA.

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

shutdown. See Power Supply Recommendations for additional information on heatsinking and thermal resistance.

(3)

When used in dual-supply systems where the regulator load is returned to a negative supply, the output voltage must be diode-clamped

to ground.

(4)

May exceed the input supply voltage.

6.2 ESD Ratings

VALUE

UNIT

Electrostatic

Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1)

±2000

V(ESD)

V

discharge

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Operating junction temperature

−40

125

°C

Input supply voltage

2.3

30

V

4

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