Load (A)

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

60

65

70

75

80

85

90

95

100

D008

R1

200 k

R2

100 k

SW

GND FB

EN

PG

VIN

C3*

C2

10 µF

R3

499 k

C1

4.7 µF

2.5 V to 5.5 V

1.8 V / 2.0 A

L1

2.2 µH

C3: Optional

TLV62569P

Copyright Ú 2016, Texas Instruments Incorporated

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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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

TLV62569, TLV62569P

SLVSDG1C – DECEMBER 2016 – REVISED OCTOBER 2017

TLV62569 2-A High Efficiency Synchronous Buck Converter in SOT Package

1

1 Features

1

•

Up to 95% Efficiency

•

•

2.5-V to 5.5-V Input Voltage Range

•

•

Power Save Mode for Light Load Efficiency

•

100% Duty Cycle for Lowest Dropout

•

35-µA Operating Quiescent Current

•

1.5-MHz Typical Switching Frequency

•

Power Good Output

•

Over Current Protection

•

Internal Soft Startup

•

Thermal Shutdown Protection

•

Available in SOT Package

•

Pin-to-Pin Compatible with TLV62568

•

Create a Custom Design Using the TLV62569

With the WEBENCH® Power Designer

2 Applications

•

General Purpose POL Supply

•

Set Top Box

•

Network Video Camera

•

Wireless Router

•

Hard Disk Driver

3 Description

The TLV62569 device is a synchronous step-down

buck DC-DC converter optimized for high efficiency

and compact solution size. The device integrates

switches capable of delivering an output current up to

2 A.

At medium to heavy loads, the device operates in

pulse width modulation (PWM) mode with 1.5-MHz

switching

frequency.

At

light

load,

the

device

automatically enters Power Save Mode (PSM) to

maintain high efficiency over the entire load current

range. In shutdown, the current consumption is

reduced to less than 2 μA.

The TLV62569 provides an adjustable output voltage

via an external resistor divider. An internal soft start

circuit limits the inrush current during startup. Other

features

like

over

current

protection,

thermal

shutdown protection and power good are built-in. The

device is available in a SOT23 and SOT563 package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TLV62569DBV

SOT23 (5)

2.90 mm × 2.80 mm

TLV62569PDDC

SOT23 (6)

TLV62569DRL

SOT563 (6)

1.60 mm x 1.60 mm

TLV62569PDRL

SOT563 (6)

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

the end of the datasheet.

Device Comparison

PART NUMBER

FUNCTION

MARKING

SYMBOL

TLV62569DBV

-

16AF

TLV62569PDDC

Power Good

7G

TLV62569DRL

-

19D

TLV62569PDRL

Power Good

19E

Simplified Schematic

Efficiency at 5-V Input Voltage