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Output Current (A)

Efficiency

0.001 0.005 0.02 0.05 0.1 0.2 0.5 1 2 3

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

D023

OUT

= 1.05 V

OUT

= 1.5 V

OUT

= 1.8 V

OUT

= 3.3 V

OUT

= 5 V

TPS563201

VIN

GND

3 4

OUT

VBST

VFB

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS563201

TPS563208

SLVSD90 –DECEMBER 2015

TPS56320x 4.5-V to 17-V Input, 3-A Synchronous Step-Down Voltage Regulator in SOT-23

1 Features 3 Description

The TPS563201 and TPS563208 are simple, easy-to-

• TPS563201 and TPS563208 3-A Converter

use, 3 A synchronous step-down converters in SOT-

Integrated 95-mΩ and 57-mΩ FETs

23 package.

• D-CAP2™ Mode Control with fast transient

The devices are optimized to operate with minimum

response

external component counts and also optimized to

• Input Voltage Range: 4.5 V to 17 V

achieve low standby current.

• Output Voltage Range: 0.76 V to 7 V

These switch mode power supply (SMPS) devices

• Pulse-skip mode (TPS563201) or Continuous

employ D-CAP2 mode control providing a fast

Current Mode (TPS563208)

transient response and supporting both low-

• 580-kHz Switching Frequency

equivalent series resistance (ESR) output capacitors

such as specialty polymer and ultra-low ESR ceramic

• Low Shutdown Current Less than 10 µA

capacitors with no external compensation

• 2% Feedback Voltage Accuracy (25 ºC)

components.

• Startup from Pre-Biased Output Voltage

TPS563201 operates in pulse skip mode, which

• Cycle-by-Cycle Overcurrent Limit

maintains high efficiency during light load operation.

• Hiccup-mode Overcurrent Protection

The TPS563201 and TPS563208 are available in a 6-

pin 1.6-mm × 2.9-mm SOT (DDC) package, and

• Non-Latch UVP and TSD Protections

specified from a –40°C to 125°C junction

• Fixed Soft Start: 1.0 ms

temperature.

2 Applications

Device Information

(1)

• Digital TV Power Supply

PART NUMBER PACKAGE BODY SIZE (NOM)

• High Definition Blu-ray™ Disc Players

TPS563201

DDC (6) 1.60 mm × 2.90 mm

TPS563208

• Networking Home Terminal

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

• Digital Set Top Box (STB)

the end of the data sheet.

• Surveillance

Simplified Schematic TPS563201 Efficiency

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.

TPS563201

TPS563208

SLVSD90 –DECEMBER 2015

www.ti.com

Table of Contents

7.4 Device Functional Modes........................................ 11

1 Features.................................................................. 1

8 Application and Implementation ........................ 12

2 Applications ........................................................... 1

8.1 Application Information............................................ 12

3 Description ............................................................. 1

8.2 Typical Application ................................................. 12

4 Revision History..................................................... 2

9 Power Supply Recommendations...................... 17

5 Pin Configuration and Functions......................... 3

10 Layout................................................................... 17

6 Specifications......................................................... 3

10.1 Layout Guidelines ................................................. 17

6.1 Absolute Maximum Ratings ...................................... 3

10.2 Layout Example .................................................... 18

6.2 ESD Ratings.............................................................. 3

11 Device and Documentation Support ................. 19

6.3 Recommended Operating Conditions....................... 4

11.1 Related Links ........................................................ 19

6.4 Thermal Information.................................................. 4

11.2 Community Resources.......................................... 19

6.5 Electrical Characteristics........................................... 5

11.3 Trademarks........................................................... 19

6.6 Typical Characteristics.............................................. 6

11.4 Electrostatic Discharge Caution............................ 19

7 Detailed Description .............................................. 9

11.5 Glossary................................................................ 19

7.1 Overview ................................................................... 9

12 Mechanical, Packaging, and Orderable

7.2 Functional Block Diagram ......................................... 9

Information ........................................................... 19

7.3 Feature Description................................................... 9

4 Revision History

DATE REVISION NOTES

December 2015 * Initial release.

Product Folder Links: TPS563201 TPS563208

GND 1 VBST6

SW 2 EN5

VIN 3 VFB4

TPS563201

TPS563208

www.ti.com

SLVSD90 –DECEMBER 2015

5 Pin Configuration and Functions

DDC Package

6-Pin SOT

Top View

Pin Functions

I/O DESCRIPTION

NAME NO.

Ground pin Source terminal of low-side power NFET as well as the ground terminal for

GND 1 —

controller circuit. Connect sensitive VFB to this GND at a single point.

SW 2 O Switch node connection between high-side NFET and low-side NFET.

VIN 3 I Input voltage supply pin. The drain terminal of high-side power NFET.

VFB 4 I Converter feedback input. Connect to output voltage with feedback resistor divider.

EN 5 I Enable input control. Active high and must be pulled up to enable the device.

Supply input for the high-side NFET gate drive circuit. Connect 0.1 µF capacitor between

VBST 6 O

VBST and SW pins.

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1)

MIN MAX UNIT

VIN, EN –0.3 19 V

VBST –0.3 25 V

VBST (10 ns transient) –0.3 27 V

Input voltage VBST (vs SW) –0.3 6.5 V

VFB –0.3 6.5 V

SW –2 19 V

SW (10 ns transient) –3.5 21 V

Operating junction temperature, T

–40 150 °C

Storage temperature, T

stg

–55 150 °C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

6.2 ESD Ratings

VALUE UNIT

Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001

(1)

±3000

(ESD)

Electrostatic discharge V

Charged-device model (CDM), per JEDEC specification JESD22-

±1500

C101

(2)

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

Product Folder Links: TPS563201 TPS563208

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