L

1.0 H

m

C

10 F

OUT

m

V

=3Vto6V

IN

C

22pF

ff

R

100k

PG

W

R

180k

2

W

R

360k

1

W

C

10

IN

mF

PVIN

PGND

EN

FB

TPS62067

PG

SW

AVIN

AGND

V

1.8V2 A

OUT

50

55

60

65

70

75

80

85

90

95

100

0

0.25

0.5

0.75

1

1.25

1.5

1.75

2

I -LoadCurrent- A

L

V

=4.2V

IN

V

=5V

IN

V

=3.7V

IN

L =1.2 H(NRG4026T1R2),

C

=22 F(0603size),

V

=3.3V,

Mode: AutoPFM/PWM

m

m

OUT

OUT

TYPICAL APPLICATIONCIRCUIT

TPS62065, TPS62067

www.ti.com

SLVS833 – MARCH 2010

3-MHz 2A Step Down Converter in 2x2 SON Package

Check for Samples: TPS62065, TPS62067

1

FEATURES

DESCRIPTION

2

•

3 MHz Switching Frequency

•

The

TPS6206x

is

a

family

of

highly

efficient

synchronous step down DC-DC converters. They

•

Up to 97% Efficiency

provide up to 2.0A output current.

•

Power Save Mode / 3MHz Fixed PWM Mode

With an input voltage range of 3.0V to 6V the device

•

Power Good Output

is a perfect fit for power conversion from a 5V or 3.3V

•

Output Voltage Accuracy in PWM Mode ±1.5%

system supply rail. The TPS6206x operates at 3MHz

•

Output Capacitor Discharge Function

fixed frequency and enters Power Save Mode

operation at light load currents to maintain high

•

Typical 18 µA Quiescent Current

efficiency over the entire load current range. The

•

100% Duty Cycle for Lowest Dropout

Power Save Mode is optimized for low output voltage

•

Voltage Positioning

ripple. For low noise applications, TPS62065 can be

forced into fixed frequency PWM mode by pulling the

•

Clock Dithering

MODE pin high. TPS62067 provides an open drain

•

Supports Maximum 1mm Height Solutions

power good output.

•

Available in a 2x2x0.75mm SON

In the shutdown mode, the current consumption is

reduced to less than 1µA and an internal circuit

APPLICATIONS

discharges the output capacitor.

•

POL

TPS6206x family is optimized for operation with a tiny

•

Notebooks, Pocket PCs

1.0µH inductor and a small 10µF output capacitor to

•

Portable Media Players

achieve smallest solution size and high regulation

•

DSP Supply

performance.

The TPS6206X is available in a small 2x2x0.75mm

8-pin SON package.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.