TPS61260, TPS61261

www.ti.com

SLVSA99

– MAY 2011

RECOMMENDED OPERATING CONDITIONS

MIN

NOM

MAX UNIT

Supply voltage at VIN

0.8

4.0

V

–40

85

°C

–40

125

°C

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)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DC/DC STAGE

Input voltage range

0.8

4.0

V

Minimum input voltage for startup

0.8

V

TPS61260 output voltage range

1.8

4.0

V

TPS61260 feedback voltage

-40

495

500

505

mV

TPS61261 output voltage

3.27

3.3

3.33

V

7 x

Average switch current limit

mA

High side switch on resistance

1000

m

Ω

Low side switch on resistance

250

m

Ω

Maximum output voltage line regulation

0.5%

Maximum output voltage load regulation

0.5%

Average output current programming range

10

100

mA

Average output current

19

20

21

mA

Average output current

18

20

22

mA

Maximum average output current line regulation

0.5%

Maximum average output current load regulation

0.5%

VIN

4

7

μA

Quiescent

current

VOUT

25

40

μA

TPS61261 FB input impedance

1

M

Ω

Shutdown current

0.1

1.5

μA

CONTROL STAGE

UVLO

Under voltage lockout threshold

0.6

0.7

0.8

V

Under voltage lockout threshold hysteresis

200

mV

0.2

×

EN input low voltage

EN input low voltage

0.36

V

0.8

×

EN input high voltage

EN input high voltage

1.2

V

EN input current

Clamped on GND or VIN

0.01

0.1

μA

Output overvoltage protection

4.0

4.5

V

Copyright

© 2011, Texas Instruments Incorporated

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