50

55

60

65

70

75

80

85

90

95

100

100m

1

10

100

1k

10k

I load (mA)

L = 1 µH

f = 1.4 MHz

G002

Vout

1.8V/3A

Vin

2.5V to 5.5V

PVIN

PVIN

EN

FB

C1

22mF

L1

1 H

m

C2

22mF

R1

200k

SW

TLV62090

SW

Power Good

AVIN

R2

160k

SS

R3

500k

AGND

PG

C4

10nF

VOS

DEF

CP

CN

C3

10nF

1

2

13

4

5

6

PGND PGND

7

8

9

10

11

12

3

14

15

16

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TLV62090

SLVSBB9D – MARCH 2012 – REVISED SEPTEMBER 2015

TLV62090 3A High Efficient Synchronous Step Down Converter with DCS™ Control

1 Features

3 Description

The

TLV62090

device

is

a

high

frequency

1

•

2.5 V to 5.5 V Input Voltage Range

synchronous step down converter optimized for small

•

DCS™ Control

solution size, high efficiency and suitable for battery

•

95% Converter Efficiency

powered applications. To maximize efficiency, the

converter operates in PWM mode with a nominal

•

Power Save Mode

switching frequency of 1.4 MHz and automatically

•

20 µA Operating Quiescent Current

enters Power Save Mode operation at light load

•

100% Duty Cycle for Lowest Dropout

currents. When used in distributed power supplies

and point of load regulation, the device allows voltage

•

1.4 MHz Typical Switching Frequency

tracking to other voltage rails and tolerates output

•

capacitors ranging from 10 µF up to 150 µF and

•

Output Discharge Function

beyond. Using the DCS™ Control topology the device

•

Adjustable Softstart

achieves excellent load transient performance and

accurate output voltage regulation.

•

Two Level Short Circuit Protection

•

Output Voltage Tracking

The output voltage start-up ramp is controlled by the

softstart pin, which allows operation as either a

•

Wide Output Capacitance Selection

standalone power supply or in tracking configurations.

•

Available in 3.00 x 3.00mm 16 Pin VQFN

Power sequencing is also possible by configuring the

Package

Enable and Power Good pins. In Power Save Mode,

the device operates at typically 20 µA quiescent

2 Applications

current. Power Save Mode is entered automatically

and seamlessly maintaining high efficiency over the

•

Distributed Power Supplies

entire load current range.

•

Notebook, Netbook Computers

•

Hard Disk Drivers (HDD)

Device Information(1)

•

Solid State Drive (SSD)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TLV62090

VQFN (16)

3.00mm x 3.00mm

•

Processor Supply

•

Battery Powered Applications

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Simplified Schematic

Efficiency

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.