TPS61041-Q1 Converter Datasheet

TPS61041-Q1 Datasheet, PDF, Equivalent


Part Number

TPS61041-Q1

Description

Low-Power DC-DC Boost Converter

Manufacture

etcTI

Total Page 28 Pages
Datasheet
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TPS61041-Q1
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TPS61040-Q1, TPS61041-Q1
SGLS276D – JANUARY 2005 – REVISED MARCH 2016
TPS6104x-Q1 Low-Power DC-DC Boost Converter in SOT-23 Package
1 Features
1 Qualified for Automotive Applications
• 1.8-V to 6-V Input Voltage Range
• Adjustable Output Voltage Range Up to 28 V
• 400-mA (TPS61040-Q1) and 250-mA (TPS61041-
Q1) Internal Switch Current
• Up to 1-MHz Switching Frequency
• 28-µA Typical No Load Quiescent Current
• 1-µA Typical Shutdown Current
• Internal Soft Start
• Space-Saving, 5-Pin SOT-23 Package
2 Applications
• Automotive Telematics, eCall, and Tolling
• Infotainment and Clusters
• Advanced Driver Assistance System (ADAS)
• LCD Bias Supplies
• White-LED Supplies for LCD Backlights
• Dual-CELL NiMH/NiCd or Single-CELL Li-Ion
Battery-Powered Systems
• Standard 3.3-V or 5-V to 12-V Conversions
VIN
1.8 V to 6 V
CIN
4.7 mF
Typical Application Diagram
L1
10 mH
D1
5 VIN
1
SW
3
FB
R1
VOUT
VIN to 28 V
CFF
CO
1 mF
4 EN
2
GND
R2
3 Description
The TPS6104x-Q1 devices are high-frequency boost
converters for automotive applications. The devices
are ideal for generating output voltages up to 28 V
from a pre-regulated low voltage rail, dual-cell
NiMH/NiCd or a single-cell Li-Ion battery, supporting
input voltages from 1.8 V to 6 V.
The TPS6104x-Q1 devices operate with a switching
frequency up to 1 MHz, allowing the use of small
external components such as ceramic as well as
tantalum output capacitors. Combined with the space-
saving, 5-pin SOT-23 package, the TPS6104x-Q1
devices accomplish a small overall solution size. The
TPS61040-Q1 device has an internal 400-mA switch
current limit, while the TPS61041-Q1 device has a
250-mA switch current limit, offering lower output
voltage ripple and allowing the use of a smaller form
factor inductor for lower-power applications.
The TPS6104x-Q1 devices operate in a pulse
frequency modulation (PFM) scheme with constant
peak current control. The combination of low
quiescent current (28 µA typical) and the optimized
control scheme enable operation of the devices at
high efficiencies over the entire load current range.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6104x-Q1
SOT-23 (5)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Efficiency vs Output Current
90
88 VO = 18 V VI = 5 V
86
84 VI = 3.6 V
82
80
78 VI = 2.4 V
76
74
72
70
0.1
1 10
IO − Output Current − mA
100
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.

TPS61041-Q1
TPS61040-Q1, TPS61041-Q1
SGLS276D – JANUARY 2005 – REVISED MARCH 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ......................................... 9
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Application .................................................. 11
8.3 System Examples ................................................... 16
9 Power Supply Recommendations...................... 19
10 Layout................................................................... 19
10.1 Layout Guidelines ................................................. 19
10.2 Layout Example .................................................... 19
11 Device and Documentation Support ................. 20
11.1 Device Support .................................................... 20
11.2 Related Links ........................................................ 20
11.3 Community Resource............................................ 20
11.4 Trademarks ........................................................... 20
11.5 Electrostatic Discharge Caution ............................ 20
11.6 Glossary ................................................................ 20
12 Mechanical, Packaging, and Orderable
Information ........................................................... 20
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (April 2012) to Revision D
Page
• Changed bullets in Applications ............................................................................................................................................ 1
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Changed TPS61040/TPS61041 to TPS6104x-Q1, add -Q1 to TPS61040 and TPS61041, VIN and Vin to VIN, Cff to
CFF, RDS(ON) and RDSon to RDS(on), and Isw to ISW throughout document ......................................................................... 1
• Updated text in Description ................................................................................................................................................... 1
• Added MAX value of 47 in the Inductor row of Recommended Operating Conditions for better clarity ............................... 4
• Changed Operating junction temperature row to Operating ambient temperature row in Recommended Operating
Conditions .............................................................................................................................................................................. 4
• Changed TJ to TA in the conditions statement of Electrical Characteristics .......................................................................... 5
• Moved figures 12 through 14 to Application Curves section .................................................................................................. 6
• Deleted 50 mA from Inductor Selection, Maximum Load Current ....................................................................................... 11
• Deleted Sumida CR32-100 row from Table 3 ..................................................................................................................... 13
• Changed Layout Diagram in Layout Example...................................................................................................................... 19
Changes from Revision B (July 2011) to Revision C
Page
• Added THERMAL SHUTDOWN section between UNDERVOLTAGE LOCKOUT and ABS MAX Table. ........................... 10
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Copyright © 2005–2016, Texas Instruments Incorporated
Product Folder Links: TPS61040-Q1 TPS61041-Q1


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS61040-Q1, TPS61041-Q1 SGL S276D – JANUARY 2005 – REVISED MARC H 2016 TPS6104x-Q1 Low-Power DC-DC Boos t Converter in SOT-23 Package 1 Featur es •1 Qualified for Automotive Applic ations • 1.8-V to 6-V Input Voltage R ange • Adjustable Output Voltage Rang e Up to 28 V • 400-mA (TPS61040-Q1) a nd 250-mA (TPS61041- Q1) Internal Switc h Current • Up to 1-MHz Switching Fre quency • 28-µA Typical No Load Quies cent Current • 1-µA Typical Shutdown Current • Internal Soft Start • Sp ace-Saving, 5-Pin SOT-23 Package 2 Appl ications • Automotive Telematics, eCa ll, and Tolling • Infotainment and Cl usters • Advanced Driver Assistance S ystem (ADAS) • LCD Bias Supplies • White-LED Supplies for LCD Backlights Dual-CELL NiMH/NiCd or Single-CELL L i-Ion Battery-Powered Systems • Stand ard 3.3-V or 5-V to 12-V Conversions V IN 1.8 V to 6 V CIN 4.7 mF Typical Application Diagram L1 10 mH D1 5 VIN 1 SW 3 FB R1 VOUT VIN.
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