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1m

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100m

1

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50

60

70

80

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100

Load current [A]

Vin=2.7V

Vin=3.6V

Vin=5.5V

C001

V

V

V

V

TLV62565

2.7V to 5.5V

V

IN

FB

VIN

GND

EN

SW

C2

10µF

V

OUT

1.8V

L1

2.2µH

C1

4.7µF

R1

240k

R2

120k

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TLV62565, TLV62566

SLVSBC1C – OCTOBER 2013 – REVISED JULY 2015

TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package

1 Features

3 Description

The TLV62565/6 devices are synchronous step-down

1

•

2.7-V to 5.5-V Input Voltage Range

converters optimized for small solution size and high

•

1.5-MHz Typical Switching Frequency

efficiency. The devices integrate switches capable of

•

Output Current up to 1.5 A (Max)

delivering an output current up to 1.5 A.

•

Adaptive On-Time Current Control

The devices are based on an adaptive on time with

•

Power Save Mode for Light Load Efficiency

valley

current

mode

control

scheme.

Typical

operating frequency is 1.5 MHz at medium to heavy

•

50-µA Operating Quiescent Current

loads. The devices are optimized to achieve very low

•

Up to 95% Efficiency

output

voltage

ripple

even

with

small

external

•

Over Current Protection

components and feature an excellent load transient

response.

•

95% Maximum Duty Cycle

•

Excellent AC and Transient Load Response

During a light load, the TLV62565/6 automatically

enter into Power Save Mode at the lowest quiescent

•

Power Good Output, TLV62566

current (50

μA typ) to maintain high efficiency over

•

Internal Soft Startup of 250 µs (Typ)

the entire load current range. In shutdown, the

•

Adjustable Output Voltage

current consumption is reduced to less than 1

μA.

•

Thermal Shutdown Protection

The TLV62565/6 provide an adjustable output voltage

•

Available in SOT-23 5-Pin Package

via an external resistor divider. The output voltage

start-up ramp is controlled by an internal soft start,

2 Applications

typically 250 µs. Power sequencing is possible by

configuring the Enable (TLV62565) and Power Good

•

Portable Devices

(TLV62566) pins. Other features like over current

•

DSL Modems

protection and over temperature protection are built-

•

Hard Disk Drivers

in. The TLV62565/6 devices are available in a SOT-

23 5-pin package.

•

Set Top Box

•

Tablet

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TLV62565,

SOT-23 (5)

2.90 mm × 1.60 mm

TLV62566

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

the end of the datasheet.

4 Simplified Schematic

Efficiency vs Load Current

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.