SHUTDOWN

3

6

GND

4

5

ERROR

OUTPUT

1

SENSE

2

8

INPUT

7

FEEDBACK

OUTPUT

SENSE

SHUTDOWN

GND

1

8

2

Thermal

7

3

6

4

5

INPUT

FEEDBACK

V

TAP

ERROR

LP2951-33-Q1, LP2951-50-Q1

www.ti.com

SLVSAW6E – JUNE 2011 – REVISED NOVEMBER 2014

5 Pin Configuration and Functions

D Package

DRG Package

8-Pin SOIC

8-Pin WSON With Exposed Thermal Pad

LP2591-50-Q1 Top View

Top View

Pin Functions

PIN

TYPE

DESCRIPTION

NAME

NO.

ERROR

5

O

nominal value.

FEEDBACK

7

I

to output the fixed voltage corresponding to the part version, or connect to a

resistor divider to adjust the output voltage.

GND

4

—

Ground

INPUT

8

I

Supply input

OUTPUT

1

O

Voltage output.

SENSE

2

I

to output the voltage corresponding to the part version.

SHUTDOWN

3

I

Active-high input. Shuts down the device.

6

O

Tie to FEEDBACK to output the fixed voltage corresponding to the part version.

6 Specifications

6.1 Absolute Maximum Ratings

(1)

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

MIN

MAX

UNIT

Input voltage range

–0.3

35

V

–1.5

35

V

–1.5

30

V

–1.5

30

V

Operating virtual-junction temperature

150

°C

(1)

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

May exceed input supply voltage

(3)

If load is returned to a negative power supply, the output must be diode clamped to GND.

6.2 Handling Ratings

MIN

MAX

UNIT

Storage temperature range

–65

150

°C

0

2000

Corner pins (1, 4, 8,

0

1000

Electrostatic discharge

V

Charged device model (CDM), per

and 5)

AEC Q100-011

Other pins

0

1000

(1)

AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

(2)

LP2951-50QDRQ1 Feedback pin survives up to 1500V HBM

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