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TPS54061-Q1 Datasheet Preview

TPS54061-Q1 Datasheet

200-mA Synchronous Step-Down DC-DC Converter

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TPS54061-Q1
SLVSBM7A – MARCH 2013 – REVISED JANUARY 2016
TPS54061-Q1 Wide-Input, 60-V, 200-mA Synchronous Step-Down
DC–DC Converter With Low IQ
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 Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• Integrated High-Side and Low-Side MOSFETs
• Diode Emulation for Light-Load Efficiency
• Peak-Current Mode Control
• 90-µA Operating Quiescent Current
• 1.4-µA Shutdown Supply Current
• 50-kHz to 1.1-MHz Adjustable Switching
Frequency
• Synchronizes to External Clock
• 0.8 V ±1% Voltage Reference
• Stable With Ceramic Output Capacitors or Low-
Cost Aluminum Electrolytic
• Cycle-by-Cycle Current Limit, Thermal, OVP, and
Frequency Foldback Protection
• 3-mm x 3-mm, 8-Pin SON Package With Thermal
Pad
• –40°C to 150°C Operating Junction Temperature
2 Applications
• Low-Power Standby or Bias Voltage Supplies
• High-Efficiency Replacement for High-Voltage
Linear Regulators
3 Description
The TPS54061-Q1 device is a 60-V, 200-mA,
synchronous step-down DC-DC converter with
integrated high-side and low-side MOSFETs. Current-
mode control provides simple external compensation
and flexible component selection. The non-switching
supply current is 90 µA. Using the enable pin reduces
the shutdown supply current to 1.4 µA.
To increase light-load efficiency, the low-side
MOSFET emulates a diode when the inductor current
reaches zero.
The internal undervoltage lockout setting is 4.5 V, but
using two resistors on the enable pin can increase
the setting. The internal slow-start time controls the
output-voltage start-up ramp.
The adjustable switching-frequency range allows
optimization of efficiency and external component
size. Frequency foldback and thermal shutdown
protect the part during an overload condition.
The TPS54061-Q1 enables small designs by
integrating the MOSFETs and boot recharge diode,
and by minimizing the IC footprint with a small 3-mm
× 3-mm thermally-enhanced SON package.
The TPS54061-Q1 is supported in the WEBENCH™
Designer at www.ti.com.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS54061-Q1
SON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VIN VIN BOOT
TPS54061-Q1
EN PH
VOUT
RT /CLK
VSNS
COMP
GND
PowerPAD
100
90
80
70
60
50
40
30
20
10
0
0.001
Efficiency
VOUT = 5 V, fSW = 50 kHz
VOUT = 5 V, fSW = 400 kHz
VOUT = 3.3 V, fSW = 400 kHz
0.010
Load Current (A)
0.100
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.




etcTI

TPS54061-Q1 Datasheet Preview

TPS54061-Q1 Datasheet

200-mA Synchronous Step-Down DC-DC Converter

No Preview Available !

TPS54061-Q1
SLVSBM7A – MARCH 2013 – REVISED JANUARY 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 .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 15
8 Applications and Implementation ...................... 16
8.1 Application Information............................................ 16
8.2 Typical Applications ................................................ 16
9 Power Supply Recommendations...................... 30
10 Layout................................................................... 30
10.1 Layout Guidelines ................................................. 30
10.2 Layout Example .................................................... 30
11 Device and Documentation Support ................. 31
11.1 Device Support...................................................... 31
11.2 Documentation Support ........................................ 31
11.3 Community Resources.......................................... 31
11.4 Trademarks ........................................................... 31
11.5 Electrostatic Discharge Caution ............................ 31
11.6 Glossary ................................................................ 31
12 Mechanical, Packaging, and Orderable
Information ........................................................... 31
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (March 2013) to Revision A
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes section, Application and Implementation section, Power Supply Recommendations section, Layout section,
Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .................. 1
2 Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
Product Folder Links: TPS54061-Q1


Part Number TPS54061-Q1
Description 200-mA Synchronous Step-Down DC-DC Converter
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