4

LM53602, LM53603

SNVSAR0 – NOVEMBER 2016

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Copyright © 2016, Texas Instruments Incorporated

Pin Functions (continued)

PIN

DESCRIPTION

NO.

NAME

15, 16

PGND

G

Power ground to internal low-side MOSFET. Connect to AGND and system ground. Connect pins 15

and 16 directly together at the PCB.

17

EP

G

Exposed die attach paddle. Connect to ground plane for adequate heat sinking and noise reduction.

(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. Values given

are D.C.

(2)

A maximum of 42 V can be sustained at this pin for a duration of

≤ 500 ms at a duty cycle of ≤ 0.01%.

(3)

Transients on this pin, not exceeding –3 V or +40 V, can be tolerated for a duration of

≤ 100 ns. For transients between 40 V and 42 V,

see note (2).

(4)

Positive current flows into this pin.

(5)

A transient voltage of ±2 V can be sustained for

≤1 µs.

7 Specifications

7.1 Absolute Maximum Ratings

over the recommended operating junction temperature range of –40°C to 150°C (unless otherwise noted)

(1)

PARAMETER

MIN

MAX

UNIT

–0.3

40

V

–0.3

V

CBOOT to SW

–0.3

3.6

V

–0.3

40

V

BIAS to AGND, PGND

–0.3

16

V

FB to AGND, PGND : fixed 5 V and 3.3 V

–0.3

16

V

FB to AGND, PGND : ADJ

–0.3

5.5

V

RESET to AGND, PGND

–0.3

8

V

SYNC, FPWM, to AGND, PGND

–0.3

5.5

V

VCC to AGND, PGND

–0.3

4.2

V

–0.1

1.2

mA

–0.3

0.3

V

–40

150

°C

(1)

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

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.2 ESD Ratings

VALUE

UNIT

Electrostatic

discharge

Human-body model (HBM), per ANSI/ESDA/JEDEC JS-

Pins 1, 2, 3, 12, 13,

±1500

V

Pins 11, 5, 8, 9, 6, 7, 4

±2500

Charged-device model (CDM), per JEDEC specification

Pins 3, 4, 5, 6, 7, 11, 12

and 13

±750

Pins 1, 2, 8, 9, 15 and 16

±500