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TPS7B4254-Q1

SLVSDI1B – APRIL 2016 – REVISED JUNE 2016

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Copyright © 2016, Texas Instruments Incorporated

(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)

All voltage values are with respect to the GND pin.

(3)

An internal diode is connected between the OUT and GND pins with 600-mA dc current capability for inductive clamp protection.

(4)

When the (ADJ – IN) voltage is higher than 18 V, the (ADJ – OUT) voltage should be maintained lower than 18 V, otherwise the device

can be damaged.

6 Specifications

6.1 Absolute Maximum Ratings

over operating ambient temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

Unregulated input voltage

–40

45

V

Regulated output voltage

–1

45

V

Voltage difference between the input

and output

IN – OUT

–40

45

V

Reference voltage

–0.3

45

V

Feedback input voltage for the tracker

–1

45

V

Reference voltage minus the input

voltage

18

V

–40

150

ºC

–65

150

°C

(1)

AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

6.2 ESD Ratings

VALUE

UNIT

Electrostatic discharge

Human-body model (HBM), per AEC

All pins except NC

±4000

V

NC pins

±2000

Charged-device model (CDM), per AEC Q100-011

±1000

(1)

Within the functional range the device operates as described in the circuit description. The electrical characteristics are specified within

the conditions given in the related Electrical Characteristics table.

(2)

(3)

The minimum output capacitance requirement is applicable for a worst-case capacitance tolerance of 30%. When a resistor divider is

connected between the OUT and FB pins (the output voltage is higher than reference voltage), a 47-nF feedforward capacitor is

required to be connected between the OUT and FB pins for loop stability, and the ESR range of the output capacitor is required to be

from 0.001 to 10 Ω.

(4)

Relevant ESR value at f = 10 kHz

6.3 Recommended Operating Conditions

over operating ambient temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

4

40

V

Reference input voltage

2

18

V

Feedback input voltage for the tracker

2

18

V

Regulated output voltage

2

40

V

10

500

µF

0.001

20

Ω

Operating junction temperature

–40

150

ºC