DISSIPATION RATINGS

RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

TPS65161

TPS65161A, TPS65161B

PACKAGE

POWER RATING

POWER RATING

POWER RATING

28-Pin HTSSOP

3.57 W

1.96 W

1.42 W

(1)

See Texas Instruments application report SLMA002 regarding thermal characteristics of the PowerPAD package.

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

MIN

NOM

MAX

UNIT

19

V

Input capacitor at VINB

2×22

µF

Input capacitor AVIN

1

µF

10

L

µH

15

1.8

5.0

V

Output capacitor boost converter

3×22

µF

Output capacitor buck converter

2×22

Operating ambient temperature

–40

85

°C

Operating junction temperature

–40

125

°C

(1)

The maximum output voltage is limited by the overvoltage protection threshold and not be the maximum switch voltage rating.

(2)

See application section for further information.

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

Input voltage range

8

14.7

V

Quiescent current into AVIN

0.2

2

Boost converter not switching

mA

Quiescent current into VINB

0.2

0.5

Buck converter not switching

Shutdown current into AVIN

EN1 = EN2 = GND

0.1

2

µA

Shutdown current into VINB

EN1 = EN2 = GND

0.1

2

Shutdown current into SUP

EN1 = EN2 = GND

0.1

4

µA

Quiescent current into SUP

0.2

2

mA

6

6.4

Undervoltage lockout threshold

V

8

8.8

Reference voltage

1.203

1.213

1.223

V

Thermal shutdown

Temperature rising

155

°C

Thermal shutdown hysteresis

5

°C

LOGIC SIGNALS EN1, EN2, FREQ

High-level input voltage EN1, EN2

2.0

V

Low-level input voltage EN1, EN2

0.8

V

High-level input voltage FREQ

1.7

V

Low-level input voltage FREQ

0.4

V

Input leakage current

0.01

0.1

µA

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