TLS203B0
Linear Voltage Post Regulator
Low Dropout, Low Noise, 3.3 V, Adjustable, 300 mA
TLS203B0EJV
TLS203B0EJV33
TLS203B0LDV
TLS203B0LDV33
Data Sheet
Rev. 1.2, 2015-01-12
Automotive Power
Linear Voltage Post Regulator
Low Dropout, Low Noise, 3.3 V, Adjustable, 300 mA
TLS203B0
1
Features
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Overview
Low Noise down to 24
µV
RMS
(BW = 10 Hz to 100 kHz)
300 mA Current Capability
Low Quiescent Current: 30 µA
Wide Input Voltage Range up to 20 V
Internal circuitry working down to 2.3 V
2.5% Output Voltage Accuracy (over full temperature and load range)
Low Dropout Voltage: 270 mV
Very low Shutdown Current: < 1 µA
No Protection Diodes Needed
Fixed Output Voltage: 3.3 V
Adjustable Version with Output from 1.22 V to 20 V
Stable with
≥
3.3 µF Output Capacitor
Stable with Aluminium, Tantalum or Ceramic Output Capacitors
Reverse Polarity Protection
No Reverse Current
Overcurrent and Overtemperature Protected
PG-DSO-8 Exposed Pad and PG-TSON-10 Exposed Pad Package
Suitable for Use in Automotive Electronics as Post Regulator
Green Product (RoHS compliant)
AEC Qualified
PG-DSO-8 Exposed Pad
PG-TSON-10
The TLS203B0 is a micropower, low noise, low dropout voltage regulator. The device is capable of supplying an
output current of 300 mA with a dropout voltage of 270 mV. Designed for use in battery-powered systems, the low
quiescent current of 30 µA makes it an ideal choice.
A key feature of the TLS203B0 is its low output noise. By adding an external 10 nF bypass capacitor output noise
values down to 24
µV
RMS
over a 10 Hz to 100 kHz bandwidth can be reached. The TLS203B0 voltage regulator
Type
TLS203B0EJV
TLS203B0EJV33
TLS203B0LDV
TLS203B0LDV33
Data Sheet
Package
PG-DSO-8 Exposed Pad
PG-DSO-8 Exposed Pad
PG-TSON-10
PG-TSON-10
2
Marking
203B0V
203B0V33
203B0V
203B0V3
Rev. 1.2, 2015-01-12
TLS203B0
Overview
is stable with output capacitors as small as 3.3 µF. Small ceramic capacitors can be used without the series
resistance required by many other linear voltage regulators.
Internal protection circuitry includes reverse battery protection, current limiting and reverse current protection. The
TLS203B0 comes as fixed output voltage variant 3.3 V as well as adjustable device with a 1.22 V reference
voltage. It is available in a PG-DSO-8 Exposed Pad and as well as in a PG-TSON-10 Exposed Pad package.
Data Sheet
3
Rev. 1.2, 2015-01-12
TLS203B0
Block Diagram
2
Block Diagram
Note: Pin numbers in block diagrams refer to the PG-DSO-8 Exposed Pad package type.
TLS203B0
I
8
Over Current
Protection
Saturation
Control
1
Temperature
Protection
Q
EN
5
Bias
BYP
4
Voltage
reference
Error
Amplifier
2
SENSE
6
GND
Figure 1
Block Diagram TLS203B0 V33 fixed voltage version
TLS203B0 (ADJ)
I
8
Over Current
Protection
Saturation
Control
1
Temperature
Protection
Q
EN
5
Bias
BYP
4
Voltage
reference
Error
Amplifier
2
ADJ
6
GND
Figure 2
Block Diagram TLS203B0 V adjustable version
Data Sheet
4
Rev. 1.2, 2015-01-12
TLS203B0
Pin Configuration
3
3.1
Pin Configuration
Pin Assignment
Q
SENSE
NC
BYP
1
2
3
9
4
8
7
6
5
I
NC
GND
EN
Q
ADJ
NC
BYP
1
2
3
9
4
8
7
6
5
TLS203B0EJV
I
NC
GND
EN
TLS203B0EJV33
Figure 3
Pin Configuration of TLS203B0 in PG-DSO-8 Exposed Pad for fixed voltage and adjustable
version
Q
Q
NC
SENSE
BYP
1
2
3
4
5
10
9
8
7
6
I
I
NC
EN
GND
Q
Q
NC
ADJ
BYP
1
2
3
4
5
10
9
8
7
6
I
I
NC
EN
GND
TLS205B0LDV33
TLS205B0LDV
Figure 4
Pin Configuration of TLS203B0 in PG-TSON-10 for fixed voltage and adjustable version.
Data Sheet
5
Rev. 1.2, 2015-01-12
模拟与混合信号
