Application Note 1 Rev. 1.0
www.infineon.com/TLS202B1MBV50 2017-10-26
TLS202B1MBV50 Demoboard
Z8F60341179
About this document
Scope and purpose
This document provides information about the usage of the demoboard for the Low Dropout Linear Voltage
Post Regulator TLS202B1MBV50 from Infineon Technologies AG. Please also refer to the corresponding Data
Sheet [1].
Intended audience
This document is intended for engineers who develop applications.
Application Note 2 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
Z8F60341179
About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 TLS202B1MBV50 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Demoboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Signal adaption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Schematic and layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table of contents
Application Note 3 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
Z8F60341179
Introduction
1 Introduction
The TLS202B1MBV50 is the ideal IC to supply regulated voltage for general ECUs, safety and infotainment
applications. The fixed output voltage makes the TLS202B1MBV50 suitable for supplying the majority of
standard applications.
The TLS202B1MBV50 is a monolithic integrated fixed linear voltage post regulator for load currents up to
150 mA. The IC regulates an input voltage VI up to 18 V to a fixed output voltage of 3.3 V with an accuracy of
±3 %. The TLS202B1MBV50 is especially designed for applications requiring very low standby current, for
example with a permanent connection to the preregulators such as DC-DC converters. The regulator is not
designed to operate with a direct connection to the battery. The voltage regulator can be enabled and
disabled via the Enable input. The device is available in a very small surface mounted PG_SCT595 package and
is designed for the harsh environment of automotive applications. Therefore it is protected against overload,
short circuit and overtemperature conditions by the implemented output current limitation and the
overtemperature shutdown circuit. The TLS202B1MBV50 can be also used in all other applications requiring a
stabilized 3.3 V voltage.
1.1 TLS202B1MBV50 features
•Output voltage: 3.3V
Output voltage accuracy of ±3 %
Output current up to 150 mA
Extended input voltage operating range of 2.7 V to 18 V
•Enable functionality
Low dropout voltage: typ. 290 mV
Very low current consumption: typ. 50 µA
Very low shutdown current: typ. 0.01 µA
Very high PSRR: typically 63 dB at 10 kHz
Output current limitation
Short circuit protection
Overtemperature shutdown
Wide temperature range From -40°C to 150°C
Suitable for use as post regulator in automotive applications
Green product (RoHS compliant)
AEC qualified
Application Note 4 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Introduction
1.2 Block diagram
Figure 1 Block diagram of TLS202B1MBV50
Bandgap
Reference
GND
Q
I
Current Limitation
Temperature
Shutdown
EN Internal
Supply
Driver
Application Note 5 Rev. 1.0
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TLS202B1MBV50 Demoboard
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Demoboard
2 Demoboard
The TLS202B1MBV50 demoboard is equiped by default with TLS202B1MBV50 and all necessary components.
Figure 2 TLS202B1MBV50 demoboard
2.1 Operating conditions
To avoid any electrical damage of the demoboard, the maximum operating range defined in Table 1 must be
followed.
Table 1 Operating range1)
1) The demoboard operates at an ambient temperature of 25°C.
Parameter Symbol Limit Values Unit Note
Min. Max.
Board supply2)
2) Functional input voltage range: 2.7 V to 18 V.
VIN 0 18 V Power supply
Regulator output VQ 0 5.53)
3) Nominal output voltage depends on voltage variant of TLS202B1MBV50.
V Regulated output for loads up to 150 mA
Enable signal EN 0 18 V Enable signal to switch regulator on
Ground GND 0 0 V System GND
Application Note 6 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Demoboard
2.2 Signal adaption
The connectors TP_VIN, TP_VQ, TP_EN/ADJ and TP_GND permit easy signal adaption, for example with
probes for an oscilloscope.
Table 2 Signals
Connector Accessible Signal
TP_VIN I (power supply)
TP_VQ Q (output voltage)
TP_EN/ADJ EN (enable voltage)
TP_GND GND (chip ground connection)
Application Note 7 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Schematic and layout
3 Schematic and layout
3.1 Schematic
Figure 3 Schematic of TLS202B1MBV50 demoboard
3.2 Layout
Figure 4 Top Layer of TLS202B1MBV50 demoboard
Application Note 8 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Schematic and layout
Figure 5 Bottom layer of TLS202B1MBV50 demoboard
Figure 6 Top layer components of TLS202B1MBV50 demoboard
Application Note 9 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Bill of material
4 Bill of material
Table 3 Bill of Material
Part Value Package
VIN Banana jack BABU4MM
VQ Banana jack BABU4MM
EN/ADJ Banana jack BABU4MM
GND Banana jack BABU4MM
R1 not applicable for TLS202B1MBV50 R0805
R2 not applicable for TLS202B1MBV50 R0805
CR1 not applicable for TLS202B1MBV50 R0805
CIN1 220 nF / 25 V (X7R) C0805
CIN2 10 µF / 25 V (X7R) C1206
CQ1 1 µF / 16 V (X7R) C0805
CQ2 not placed C0805
TP_VIN
TP_VQ
TP_EN/ADJ
TP_GND
IC1 TLS202B1MBV50MBV33 PG_SCT595
Application Note 10 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Restrictions
5 Restrictions
This demoboard offers limited features allowing you only to evaluate and test the Infineon product.
The demoboard is not an end product or finished appliance, nor is it intended or authorized by Infineon to be
integrated into end products. You are not authorized to use the demoboard in any production system.
Application Note 11 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
Z8F60341179
References
[1] TLS202B1MBV50 Data Sheet, Infineon Technologies AG
Application Note 12 Rev. 1.0
2017-10-26
TLS202B1MBV50 Demoboard
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Revision history
6 Revision history
Revision Date Changes
1.0 2017-10-26 Initial version
Trademarks of Infineon Technologies AG
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2017-10-26
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2017 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
Document reference
Z8F60341179
IMPORTANT NOTICE
The information contained in this application note is
given as a hint for the implementation of the product
only and shall in no event be regarded as a description
or warranty of a certain functionality, condition or
quality of the product. Before implementation of the
product, the recipient of this application note must
verify any function and other technical information
given herein in the real application. Infineon
Technologies hereby disclaims any and all warranties
and liabilities of any kind (including without limitation
warranties of non-infringement of intellectual
property rights of any third party) with respect to any
and all information given in this application note.
The data contained in this document is exclusively
intended for technically trained staff. It is the
responsibility of customer’s technical departments to
evaluate the suitability of the product for the intended
application and the completeness of the product
information given in this document with respect to
such application.
For further information on technology, delivery terms
and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
WARNINGS
Due to technical requirements products may contain
dangerous substances. For information on the types
in question please contact your nearest Infineon
Technologies office.
Except as otherwise explicitly approved by Infineon
Technologies in a written document signed by
authorized representatives of Infineon Technologies,
Infineon Technologies’ products may not be used in
any applications where a failure of the product or any
consequences of the use thereof can reasonably be
expected to result in personal injury.