TPS61070-Q1, TPS61071-Q1

TPS61072-Q1, TPS61073-Q1

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SLVSAA5 – MAY 2010

ELECTRICAL CHARACTERISTICS

over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature

range of 25°C) (unless otherwise noted)

DC/DC STAGE

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Minimum input voltage range for

start-up

1.1

1.25

(TPS61070, TPS61071, TPS61072)

Minimum input voltage range for

2.3

start-up (TPS61073)

V

Input voltage range, after start-up

0.9

5.5

(TPS61070, TPS61071, TPS61072)

Input voltage range, after start-up

2.3

5.5

(TPS61073)

Output voltage range (TPS61070,

1.8

5.5

TPS61071, TPS61072)

V

Output voltage range (TPS61073)

2.3

5.5

Feedback voltage

490

500

510

mV

Oscillator frequency (TPS61070,

960

1200

1440

TPS61071, TPS61073)

f

kHz

Oscillator frequency (TPS61072)

480

600

720

Switch current limit

VOUT= 3.3 V

455

600

735

mA

Start-up current limit

mA

Boost switch-on resistance

VOUT= 3.3 V

480

m

Ω

Rectifying switch-on resistance

VOUT= 3.3 V

600

m

Ω

Total accuracy (including line and

5%

load regulation)

Line regulation

1%

Load regulation

1%

VBAT

0.5

1

Quiescent current

(TPS61070, TPS61071,

µA

VOUT

TPS61072)

VBAT

1

1.5

Quiescent current

µA

(TPS61073)

VOUT

30

50

Shutdown current (TPS61070,

0.05

0.5

µA

TPS61071, TPS61072)

Shutdown current (TPS61073)

0.05

1.5

µA

(1)

Switching current

(2)

Non-switching current

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