V

= 1.5 V (50 mV/div)

O2

Iout (1 A/div)

t - Time - 100 s/div

m

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

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.

TPS54295

SLVSB01D – OCTOBER 2011 – REVISED AUGUST 2016

TPS54295 2-A Dual Channel Synchronous Step-Down Switcher With Integrated FET

1

1 Features

1

•

D-CAP2™ Control Mode

–

Fast Transient Response

–

No External Parts Required For Loop

Compensation

–

Compatible With Ceramic Output Capacitors

•

Wide Input Voltage Range : 4.5 V to 18 V

•

Output Voltage Range : 0.76 V to 7 V

•

Highly Efficient Integrated FETs Optimized for

Low Duty Cycle Applications

–

150 m

Ω (High-Side) and 100 mΩ (Low-Side)

•

High Initial Reference Accuracy

•

•

Adjustable Soft Start

•

Non-Sinking Prebiased Soft Start

•

700-kHz Switching Frequency

•

Cycle-by-Cycle Overcurrent Limit Control

•

OCL, OVP, UVP, UVLO, and TSD Protections

•

Adaptive Gate Drivers With Integrated Boost

PMOS Switch

•

OCP Constant Due to Thermally Compensated

•

16-Pin HTSSOP, 16-pin VQFN

•

Auto-Skip Eco-mode™ for High Efficiency at Light

Load

2 Applications

•

Point-of-Load Regulation in Low Power Systems

for Wide Range of Applications

–

Digital TV Power Supplies

–

Networking Home Terminals

–

Digital Set Top Boxes (STB)

–

DVD Players and Recorders

–

Gaming Consoles and Other

3 Description

The TPS54295 is a dual, adaptive on-time D-CAP2

mode synchronous buck converter. The TPS54295

enables system designers to complete the suite of

various end-equipment power bus regulators with a

cost effective, low component count, and low standby

current solution. The main control loops of the

TPS54295 use the D-CAP2 mode control which

provides a very fast transient response with no

external compensation components. The adaptive on-

time control supports seamless transition between

PWM mode at higher load conditions and Eco-mode

operation

at

light

loads.

Eco-mode

allows

the

TPS54295 to maintain high efficiency during lighter

load conditions. The TPS54295 is able to adapt to

both low equivalent series resistance (ESR) output

capacitors such as POSCAP or SP-CAP, and ultra-

low ESR ceramic capacitors. The device provides

convenient and efficient operation with input voltages

from 4.5 V to 18 V.

The TPS54295 is available in a 4.4 mm × 5 mm 16-

pin HTSSOP (PWP) package and 4 mm x 4 mm 16-

pin VQFN (RSA) package, designed to operate at an

ambient temperature range from –40°C to 85°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS54295

HTSSOP (16)

5.00 mm × 4.40 mm

VQFN (16)

4.00 mm × 4.00 mm

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

the end of the data sheet.

Load Transient Response