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TPS55160-Q1 Datasheet Preview

TPS55160-Q1 Datasheet

Synchronous Step-Up and Step-Down Voltage Regulator

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TPS55160-Q1, TPS55162-Q1, TPS55165-Q1

SLVSD46 – NOVEMBER 2017

TPS5516x-Q1 36-V, 1-A Output, 2-MHz, Single Inductor, Synchronous Step-Up

and Step-Down Voltage Regulator

1 Features

•1 Qualified for Automotive Applications

• AEC-Q100 Qualified with the Following Results:

– Device Temperature Grade 1: –40°C to

+125°C Ambient Operating Temperature

– Device HBM ESD Classification Level 2

– Device CDM ESD Classification Level C4B

• 2-V to 36-V Input Voltage Range for VOUT = 5 V

• 5-V or 12-V Fixed Output Voltage (TPS55165-Q1)

• Adjustable Output Voltage Options from 5.7 V to

9 V (TPS55160-Q1 and TPS55162-Q1)

• Up to 85% Efficiency

• 1-A Output Current for VOUT = 5 V and VIN ≥ 5.3 V

• 0.8-A Output Current for VOUT = 5 V and

VIN ≥ 3.8 V

• 0.4-A Output Current for VOUT = 5 V and

VIN ≥ 2.3 V

• Automatic Transition Between Step-Down and

Step-Up Mode

• Low-Power Mode for Improved Efficiency at Light

Load Conditions (TPS55160-Q1 and

TPS55165-Q1)

• Device Quiescent Current Less than 15 μA in

Low-Power Mode (TPS55160-Q1 and

TPS55165-Q1)

• Device Shutdown Current Less than 3 μA

• Forced Fixed-Frequency Operation at 2 MHz

• Selectable Spread Spectrum (TPS55160-Q1 and

TPS55165-Q1)

• Wake-up Through IGN With Power-Latch Function

• Smart Power-Good Output With Configurable

Delay Time

• Overtemperature Protection and Output

Overvoltage Protection

• Available in Easy-to-Use 20-Pin HTSSOP

PowerPAD™ Package

2 Applications

• Start-Stop Sensitive Automotive Power

Applications

– Infotainment and Cluster

– Body Electronics and Gateway Modules

• Industrial Applications With Fluctuating Input

Voltage

– Solar-to-Battery Charging

– Li-Ion Battery Packs

3 Description

The TPS5516x-Q1 family of devices is a high-voltage

synchronous buck-boost DC-DC converter. The

device provides a stable power-supply output from a

wide varying input-power supply such as an

automotive car battery. The buck-boost overlap

control ensures automatic transition between step-

down and step-up mode with optimal efficiency. The

TPS55165-Q1 output voltage can be set to a fixed

level of 5 V or 12 V. The TPS55160-Q1 and

TPS55162-Q1 devices have a configurable output

voltage ranging from 5.7 V to 9 V that is set by an

external resistive divider.

Output currents can be as high as 1 A for a normal

car battery voltage, and can be maintained at 0.4 A

for lower input voltages, such as those for common

battery-cranking profiles. The buck-boost converter is

based on a fixed-frequency, pulse-width-modulation

(PWM) control circuit using synchronous rectification

to obtain maximum efficiency. The switching

frequency is set to 2 MHz (typical) which allows for

the usage of a small inductor that uses less board

space.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS55160-Q1

TPS55162-Q1

TPS55165-Q1(2)

HTSSOP (20)

6.50 mm × 4.40 mm

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

the end of the data sheet.

(2) Available for preview.

Simplified Schematic

2 V ” VIN ” 36 V

10 µF

OFF

Power

Latch

Low-

Power

Mode

0.1 µF

BST1 L1

VINP

VINL

4.7 µF

0.1 µF

L2 BST2

VOUT

VOUT = 5 V

1 A at VIN t 5.3 V

0.8 A at VIN t 3.8 V

0.4 A at VIN t 2.3 V

100 k

22 µF

IGN_PWRL

VOUT_SENSE

SS_EN

VOS_FB

IGN

PGND

GND

VREG

VREG_Q

PG_DLY

TPS5516x-Q1

100 nF

RDLY

4.7 µF

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.

etcTI

TPS55160-Q1 Datasheet Preview

TPS55160-Q1 Datasheet

Synchronous Step-Up and Step-Down Voltage Regulator

No Preview Available !

TPS55160-Q1, TPS55162-Q1, TPS55165-Q1

SLVSD46 – NOVEMBER 2017

www.ti.com

Table of Contents

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

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

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

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

5 Description (continued)......................................... 3

6 Pin Configuration and Functions ......................... 3

7 Specifications......................................................... 5

7.1 Absolute Maximum Ratings ...................................... 5

7.2 ESD Ratings.............................................................. 5

7.3 Recommended Operating Conditions....................... 5

7.4 Thermal Information .................................................. 6

7.5 Electrical Characteristics — External Components .. 6

7.6 Electrical Characteristics — Supply Voltage (VINP,

VINL pins) .................................................................. 6

7.7 Electrical Characteristics — Reference Voltage

(VOS_FB Pin) and Output Voltage (VOUT Pin) ........ 7

7.8 Electrical Characteristics — Buck-Boost................... 7

7.9 Electrical Characteristics — Undervoltage and

Overvoltage Lockout .................................................. 9

7.10 Electrical Characteristics — IGN Wakeup .............. 9

7.11 Electrical Characteristics — Logic Pins PS,

IGN_PWRL, SS_EN .................................................. 9

7.12 Electrical Characteristics – Overtemperature

Protection ................................................................. 10

7.13 Electrical Characteristics – Power Good............... 10

7.14 Switching Characteristics — Reference Voltage

(VOS_FB Pin) and Output Voltage (VOUT Pin) ...... 10

7.15 Switching Characteristics — Buck-Boost.............. 11

7.16 Switching Characteristics — Undervoltage and

Overvoltage Lockout ................................................ 11

7.17 Switching Characteristics — IGN Wakeup............ 11

7.18 Switching Characteristics — Logic Pins PS,

IGN_PWRL, SS_EN ................................................ 11

7.19 Switching Characteristics – Power Good.............. 12

7.20 Typical Characteristics .......................................... 12

8 Detailed Description ............................................ 15

8.1 Overview ................................................................. 15

8.2 Functional Block Diagram ....................................... 16

8.3 Feature Description................................................. 17

8.4 Device Functional Modes........................................ 18

9 Application and Implementation ........................ 27

9.1 Application Information............................................ 27

9.2 Typical Application ................................................. 31

10 Power Supply Recommendations ..................... 35

11 Layout................................................................... 35

11.1 Layout Guidelines ................................................. 35

11.2 Layout Example .................................................... 36

12 Device and Documentation Support ................. 37

12.1 Device Support...................................................... 37

12.2 Documentation Support ........................................ 37

12.3 Related Links ........................................................ 37

12.4 Community Resources.......................................... 37

12.5 Trademarks ........................................................... 37

12.6 Electrostatic Discharge Caution ............................ 37

12.7 Glossary ................................................................ 37

13 Mechanical, Packaging, and Orderable

Information ........................................................... 38

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

DATE

November 2017

REVISION

NOTES

Initial release.

2 Submit Documentation Feedback

Product Folder Links: TPS55160-Q1 TPS55162-Q1 TPS55165-Q1

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TPS55160-Q1 Datasheet

Synchronous Step-Up and Step-Down Voltage Regulator

TPS55160-Q1 Datasheet

Synchronous Step-Up and Step-Down Voltage Regulator

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