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 - Load Current - A

L

V

= 4.2 V

IN

V

= 5 V

IN

V

= 3.7 V

IN

L = 1.2 H (NRG4026T 1R2),

C

= 22 F (0603 size),

V

= 3.3 V,

Mode: Auto PFM/PWM

m

m

OUT

OUT

TYPICAL APPLICATION CIRCUIT

L

1.0 H

m

C

10 F

OUT

m

V

= 2.9 V to 5.5 V

IN

C

22 pF

ff

R

180 k

2

W

R

360 k

1

W

C

10

IN

mF

PVIN

PGND

EN

FB

TLV62065-Q1

SW

AVIN

AGND

V

1.8 V 2 A

OUT

MODE

TLV62065-Q1

www.ti.com

SLVSB92A – JANUARY 2012 – REVISED MARCH 2012

3-MHz 2-A Step-Down Converter in 2-mm x 2-mm SON Package

Check for Samples: TLV62065-Q1

1

FEATURES

DESCRIPTION

2

•

Qualified for Automotive Applications

The TLV62065-Q1 is a highly efficient, synchronous

•

AEC-Q100 Test Guidance With the Following

step-down, dc-dc converter with a 1.2-V fixed output

Results:

voltage.. It provides up to 2 A of output current.

–

Device Temperature Grade 2: –40°C to

With an input voltage range of 2.9 V to 5.5 V, the

105°C Ambient Operating Temperature

device is a perfect fit for power conversion from a 5-V

Range

or 3.3-V system supply rail. The TLV62065-Q1

–

Device HBM ESD Classification Level H2

operates at 3-MHz fixed frequency and enters power-

save mode operation at light load currents to maintain

–

Device CDM ESD Classification Level C3B

high efficiency over the entire load current range. For

•

low-noise applications, the TLV62065-Q1 can be

•

Up to 97% Efficiency

forced into fixed-frequency PWM mode by pulling the

MODE pin high.

•

Power-Save Mode / - MHz Fixed PWM Mode

•

Output Voltage Accuracy in PWM Mode ±2.0%

In the shutdown mode, the current consumption is

reduced to less than 1 µA and an internal circuit

•

Output Capacitor Discharge Function

discharges the output capacitor.

•

Typical 18-µA Quiescent Current

The TLV62065-Q1 operates with a 1-µH inductor and

•

100% Duty Cycle for Lowest Dropout

10-µF output capacitor.

•

For Improved Feature Set See TPS62065

The TLV62065-Q1 is available in a small 2-mm × 2-

•

Available in a 2-mm × 2-mm × 0.75-mm SON

mm × 0.75-mm 8-pin SON package.

APPLICATIONS

•

Point of Load (POL)

•

Notebooks, Pocket PCs

•

Portable Media Players

•

Set Top Box

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 © 2012, 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.