TLS208D1
Linear Voltage Post Regulator
TLS208D1EJV
TLS208D1EJV33
TLS208D1LDV
TLS208D1LDV33
Data Sheet
Rev. 1.0, 2015-02-26
Automotive Power
TLS208D1
Table of Contents
1
2
3
3.1
3.2
3.3
3.4
4
4.1
4.2
4.3
5
5.1
5.2
5.3
6
6.1
6.2
6.3
7
7.1
7.2
7.3
8
8.1
8.2
8.3
9
9.1
9.2
10
10.1
10.2
11
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Assignment PG-DSO-8 (Exposed Pad) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Definitions and Functions PG-DSO-8 (Exposed Pad) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Assignment PG-TSON10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Definitions and Functions PG-TSON10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Product Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
5
5
6
6
7
7
8
8
Voltage Regulator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Description Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Characteristics Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Typical Performance Characteristics Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Current Consumption
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Performance Characteristics Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enable Function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description Enable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Enable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Performance Characteristics Enable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset Function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Performance Characteristics Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
17
17
18
19
19
19
19
20
20
21
22
Application Information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adjustable Version - TLS208D1xxV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Fixed Voltage Version - TLS208D1xxV33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Package Outlines PG-DSO-8 (Exposed Pad) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Package Outlines PG-TSON10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Data Sheet
2
Rev. 1.0, 2015-02-26
Linear Voltage Post Regulator
TLS208D1
1
Features
•
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•
•
•
•
•
•
•
•
•
•
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Overview
3.3 V Fixed and Adjustable Output Voltage from 0.8 V to 5.25 V
Output Voltage Accuracy of
±
2 %
Static Output Currents up to 800 mA
Enable Functionality
Undervoltage Reset with Power-On Reset Delay
Adjustable Reset Threshold
Extended Input Voltage Operating Range of 2.7 V to 18 V
Low Dropout Voltage: typ. 400mV at 400mA
Very Low Current Consumption: typ. 90 µA
Very High PSRR: typ. 62dB at 10kHz
Output Current Limitation
Overtemperature Shutdown
Wide Temperature Range From -40 °C up to 150 °C
Suitable for Use in Automotive Electronics as Post Regulator
Green Product (RoHS compliant)
AEC Qualified
PG-DSO-8 (Exposed Pad)
Description
PG-TSON10
The TLS208D1 is a monolithic integrated linear voltage post regulator. The IC regulates an input voltage
V
I
in the
range of 2.7 V
≤
V
I
≤
18 V to an adjustable output voltage of 0.8 V to 5.25 V or to a fixed output voltage with a
precision of
±2
%. The TLS208D1 is especially designed for applications with a permanent connection to
preregulators like DCDC converters. The device is available in the small surface mounted PG-DSO-8 (Exposed
Pad) package. In addition to the enable functionality, the feature set includes a reset with an adjustable reset
threshold. This threshold can be modified by an external resistor divider. The device 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 TLS208D1 can be also used in all other applications requiring a stabilized voltage of 0.8 V to 5.25 V.
The input capacitor
C
I
is recommended for compensating line influences. The output capacitor
C
Q
is necessary
for the stability of the regulating circuit. Stability is guaranteed at values specified in
“Functional Range” on
Page 8
within the whole operating temperature range.
Type
TLS208D1EJV
TLS208D1EJV33
TLS208D1LDV
TLS208D1LDV33
Data Sheet
Package
PG-DSO-8 (Exposed Pad)
PG-DSO-8 (Exposed Pad)
PG-TSON10
PG-TSON10
3
Marking
208D1V
208D1V33
208DV
208DV33
Rev. 1.0, 2015-02-26
TLS208D1
Block Diagram
2
Block Diagram
I
Q
Current Limitation
ADJ
Driver
Temperature
Shutdown
RO
Bandgap
Reference
Internal
Supply
Reset
Control
EN
RADJ
GND
Figure 1
Block Diagram Adjustable Version (e.g. TLS208D1EJV)
I
Q
FB
Current Limitation
Driver
RO
Reset
Control
Temperature
Shutdown
Bandgap
Reference
Internal
Supply
RADJ
EN
GND
Figure 2
Block Diagram Fixed Voltage Version (e.g. TLS208D1EJV33)
Data Sheet
4
Rev. 1.0, 2015-02-26
TLS208D1
Pin Configuration
3
3.1
Pin Configuration
Pin Assignment PG-DSO-8 (Exposed Pad)
IN
N.C.
GND
EN
Figure 3
1
2
3
4
8
7
6
5
Q
ADJ/FB
RADJ
RO
Pin Configuration Package PG-DSO-8 (Exposed Pad)
3.2
Pin
1
Pin Definitions and Functions PG-DSO-8 (Exposed Pad)
Symbol
I
Function
Input.
IC supply. For compensating line influences, a capacitor of 220 nF close to the IC pins is
recommended.
Not Connected.
Ground Reference.
Connect this pin low ohmic to GND.
Enable.
A low signal disables the IC. A high signal switches it on.
Connect to the input I, if the enable functionality is not required.
Reset Output
The open collector output can be connected to a microcontroller using a external pull up resistor.
If the functionality is not required, the pin can be left open.
Reset Adjust.
For reset threshold adjustment connect to a voltage divider from output Q to GND.
(“Description
Reset Function” on Page 20)
Adjust. (Only Adjustable Version TLS208D1EJV)
The reference voltage can be connected to the output pin directly or by a voltage divider for
higher output voltages (see application information).
Feedback. (Only Fixed Voltage Versions e.g. TLS208D1EJV33)
The Feedback pin has to be connected to the output voltage.
Output.
Block to GND with a capacitor close to the IC terminals, respecting capacitance and ESR
requirements given in the table
“Functional Range” on Page 8.
Exposed Pad.
Connect to PCB heat sink area and GND.
2
3
4
N.C
GND
EN
5
RO
6
RADJ
7
ADJ
FB
8
Q
Pad EP
Data Sheet
5
Rev. 1.0, 2015-02-26
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