LP2953_15 datasheet(5/41 Pages) TI

5 / 41 page

LP2952-N, LP2952A, LP2953, LP2953A

www.ti.com

SNVS095F – MAY 2004 – REVISED MARCH 2015

6.4 Thermal Information

LP2952, LP2953

LP2953

THERMAL METRIC(1)

SOIC (D)

PDIP (NBG)

UNIT

16 PINS

RθJA

Junction-to-ambient thermal resistance

76.9

42.1

RθJC(top)

Junction-to-case (top) thermal resistance

37.4

28.1

RθJB

Junction-to-board thermal resistance

34.6

22.2

°C/W

ψJT

Junction-to-top characterization parameter

7.3

12.0

ψJB

Junction-to-board characterization parameter

34.3

22.1

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics: 3.3-V Versions

Limits are assured by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.

Unless otherwise specified: MIN (minimum) and MAX (maximum) specifications in apply over the full Operating Temperature

Range and TYP (typical) values apply at TJ = 25°C, VIN = VOUT(NOM) + 1 V, IOUT = 1 mA, COUT = 2.2 μF for 5-V parts and 4.7

μF for 3.3-V parts. FEEDBACK pin is tied to VTAP pin, OUT pin is tied to SENSE pin.

LP2952AI-3.3, LP2953AI-3.3

LP2952I-3.3, LP2953I-3.3

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

TJ = 25°C

3.284

3.3

3.317

3.267

3.3

3.333

VOUT

Output voltage

3.260

3.3

3.340

3.234

3.3

3.366

1 mA

≤ IOUT ≤ 250 mA

3.254

3.3

3.346

3.221

3.3

3.379

6.6 Electrical Characteristics: 5-V Versions

Limits are assured by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.

Unless otherwise specified, MIN (minimum) and MAX (maximum) specifications in apply over the full Operating Temperature

Range and TYP (typical) values apply at TJ = 25°C, VIN = VOUT(NOM) + 1 V, IOUT = 1 mA, COUT = 2.2 μF for 5-V parts and 4.7

μF for 3.3-V parts. FEEDBACK pin is tied to VTAP pin, OUT pin is tied to SENSE pin.

LP2952AI, LP2953AI

LP2952I, LP2953I

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

TJ = 25°C

4.975

5.025

4.95

5.05

VOUT

Output voltage

4.94

5.06

4.9

5.1

1 mA

≤ IOUT ≤ 250 mA

4.93

5.07

4.88

5.12

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