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TPS40077

SLUS714E – JANUARY 2007 – REVISED JUNE 2019

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Copyright © 2007–2019, Texas Instruments Incorporated

Typical Applications (continued)

(1)

Voltage accuracy is dependent on resistor tolerance and reference accuracy. Line and load regulation are calculated with respect to the

actual set point voltage.

Table 3. Characteristics

PARAMETER

NOTES AND CONDITIONS

MIN

NOM

MAX

UNITS

INPUT CHARACTERSTICS

VIN

Input voltage

8

12

16

V

IIN

Input current

VIN = NOM, IOUT = MAX

1.8

2

A

No-load input current

VIN = NOM, IOUT = 0 A

62.6

3.6

mA

VIN_UVLO

Input UVLO

IOUT = MIN to MAX

5.4

6

6.6

V

VIN_ONV

Input ONV

IOUT = MIN to MAX

6.3

7

7.7

V

OUTPUT CHARACTERSTICS

VOUT

Output voltage

VIN = NOM, IOUT = NOM

1.75

1.8

1.85

V

Line regulation(1)

VIN = MIN to MAX, IOUT = NOM

0.5%

Load regulation(1)

VIN = NOM, IOUT = MIN to MAX

0.5%

VOUT_ripple

Output voltage ripple

VIN = NOM, IOUT = MAX

100

mVpp

IOUT

Output current

VIN = MIN to MAX

0

5

10

A

IOCP

Output overcurrent

inception point

VIN = NOM, VOUT = VOUT – 5%

12.25

19.4

34

A

VOVP

Output OVP

IOUT = MIN to MAX

NA

NA

NA

Transient response

ΔI

Load step

IOUT_Max to 0.2 × IOUT _Max

8

A

Load slew rate

10

A/μs

Overshoot

200

mV

Settling time

1

ms

SYSTEM CHARACTERSTICS

fSW

Switching frequency

240

300

360

kHz

ηpk

Peak efficiency

VIN = NOM, IOUT = MIN to MAX

90%

η

Full-load efficiency

VIN = NOM, IOUT = MAX

90%

Top

Operating temperature

range

VIN = MIN to MAX, IOUT = MIN to MAX

–40

25

85

°C

MECHANICAL CHARACTERSTICS

L

Width

2

Inches

5.08

cm

W

Length

3

Inches

7.62

cm

h

Component height

0.41

Inch

1.04

cm

Table 4. Bill of Materials

REFDES

COUNT

VALUE

DESCRIPTION

SIZE

PART NUMBER

MFR

C1

1

470 μF

Capacitor, aluminum, 470-μF, 25-V,

20%

0.457 x 0.406

EEVFK1E471P

Panasonic

C2, C10

2

0.1 μF

Capacitor, ceramic, 25-V, X7R, 20%

0603

Std

Vishay

C3

1

15 nF

Capacitor, ceramic, 25-V, X7R 20%

0603

Std

Vishay

C4

1

47 pF

Capacitor, ceramic, 25-V, X7R, 20%

0603

Std

Vishay

C5

1

1.8 nF

Capacitor, ceramic, 25-V, X7R 20%

0603

Std

Vishay

C6

1

680 pF

Capacitor, ceramic, 25-V, X7R 20%

0603

Std

Vishay

C7

1

51 pF

Capacitor, ceramic, 25-V, COG 20%

0603

Std

Vishay

C8, C11

2

0.1 μF

Capacitor, ceramic, 25-V, X7R, 20%

0603

Std

Vishay