TPS62242-Q1 datasheet(8/21 Pages) TI1

No. de pieza	TPS62242-Q1

Descripción Electrónicos	2.25-MHz 300-mA Step-Down Converter in DDC/TSOT23 Package

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Fabricante Electrónico	TI1 [Texas Instruments]

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EN2V/Div

SW2V/Div

V

2V/Div

OUT

I 100mA/Div

IN

V =3.6V

R

=10R

V

=1.8V

I intoC

MODE=GND

IN

Load

OUT

IN

TimeBase-100 s/Div

m

1.74

1.76

1.78

1.8

1.82

1.84

1.86

1.88

PFM

PWM

0.01

0.1

1

10

100

1000

I

-OutputCurrent-mA

O

V =3.6V

I

V =4.5V

I

V =3V

I

V =2.7V

I

V =2.3V

I

T =85°C,

V

=1.8V,

MODE=GND,

L =2.2 H,

C

=10 F

A

O

m

TimeBase-10 s/Div

m

V 3.6V

V

1.8V,I

150mA

L 2.2 H,C

10 F0603

IN

OUT

m

V

10mV/Div

OUT

SW2V/Div

I

200mA/Div

coil

TimeBase-10 s/Div

m

V 3.6V

V

1.8V,I

10mA

L 2.2 H,C

10 F0603

IN

OUT

m

V

20mV/Div

OUT

SW2V/Div

I

200mA/Div

coil

TPS62242-Q1

SLVSB38A – MARCH 2011 – REVISED MARCH 2012

www.ti.com

OUTPUT VOLTAGE ACCURACY

vs

OUTPUT CURRENT

STARTUP TIMING

Figure 5.

Figure 6.

TYPICAL OPERATION

vs

PWM MODE

PFM MODE

Figure 7.

Figure 8.

8

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TPS62242-Q1 Datasheet(PDF) 8 Page - Texas Instruments

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