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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
ON
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
PG
VOUT_SENSE
SS_EN
VOS_FB
IGN
PS
PGND
GND
VREG
VREG_Q
PG_DLY
TPS5516x-Q1
100 nF
RDLY
4.7 µF
Copyright © 2017, Texas Instruments Incorporated
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.




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
Copyright © 2017, Texas Instruments Incorporated
Product Folder Links: TPS55160-Q1 TPS55162-Q1 TPS55165-Q1


Part Number TPS55160-Q1
Description Synchronous Step-Up and Step-Down Voltage Regulator
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