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TPS62170-Q1, TPS62171-Q1, TPS62172-Q1

www.ti.com

SLVSCK7A – DECEMBER 2014 – REVISED SEPTEMBER 2016

Product Folder Links: TPS62170-Q1 TPS62171-Q1 TPS62172-Q1

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Copyright © 2014–2016, Texas Instruments Incorporated

(1)

(2)

Current into VIN pin.

(3)

This is the static current limit. It can be temporarily higher in applications due to internal propagation delay (see Current Limit and Short

Circuit Protection).

(4)

For fixed voltage versions, the (internal) resistive feedback divider is included.

(5)

(6)

Line and load regulation are depending on external component selection and layout (see Figure 14 and Figure 15).

6.5 Electrical Characteristics

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY

3

17

V

Operating quiescent current

EN = High, IOUT = 0 mA, Device not switching

17

30

µA

EN = Low

1.8

25

µA

Undervoltage lockout threshold

Falling input voltage

2.6

2.7

2.82

V

Hysteresis

180

mV

Thermal shutdown temperature

160

°C

Thermal shutdown hysteresis

20

CONTROL (EN, PG)

High-level input threshold voltage (EN)

0.9

V

Low-level input threshold voltage (EN)

0.3

V

Input leakage current (EN)

0.01

1

µA

Power Good threshold voltage

92%

95%

98%

87%

90%

93%

Power Good output low

0.07

0.3

V

Input leakage current (PG)

1

400

nA

POWER SWITCH

High-side MOSFET ON-resistance

300

600

mΩ

430

Low-side MOSFET ON-resistance

120

200

mΩ

165

0.85

1.05

1.35

A

OUTPUT

VREF

Internal reference voltage

0.8

V

Pin leakage current (FB)

5

400

nA

Output voltage range

0.9

6.0

V

–3%

3%

(5)

–3.5%

4%

0.05

% / A

3 V

PWM Mode operation

0.02

% / V