Data Sheet 1 Rev. 1.00
www.infineon.com/power 2016-10-13
TLS115B0
High Precision Voltage Tracker
Features
150 mA current capability
Very high accuracy voltage tracking
Output voltage adjustable down to 2.0 V
Stable with ceramic output capacitors
Very low dropout voltage
Very low current consumption in OFF mode
Internally controlled soft start
Wide input voltage range: -16 V VIN 45 V
Wide temperature range: -40°C Tj 150°C
Short circuit protected output (to GND and to battery)
Reverse polarity protected input
Overtemperature protection
Green Product (RoHS compliant)
AEC Qualified
Applications
Automotive sensor supply
Protected sensor supply for off-board sensors
Secondary voltage supply in automotive ECU
High-precision voltage tracking
Precision voltage replication
Power switch for off-board load
Description
The TLS115B0 is a monolithic integrated low-dropout voltage tracking regulator with high accuracy in small
PG-DSO-8 exposed pad and PG-TSON-10 packages. The TLS115B0 is designed to supply off-board systems, for
example sensors in powertrain management systems under the severe conditions of automotive applications.
Therefore, the TLS115B0 is equipped with protection functions against reverse polarity and against short
circuit to GND and battery.
Up to a supply voltage of 45 V and output currents up to 150 mA, the output voltage follows the reference
voltage that is applied to the ADJ input with very high accuracy. The required minimum reference voltage at
ADJ is 2.0 V.
Data Sheet 2 Rev. 1.00
2016-10-13
TLS115B0
High Precision Voltage Tracker
Type Package Marking
TLS115B0EJ PG-DSO-8 EP 115B0
TLS115B0LD PG-TSON-10 115B0
TLS115B0
High Precision Voltage Tracker
Data Sheet 3 Rev. 1.00
2016-10-13
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Pin assignment TLS115B0EJ in PG-DSO-8 EP package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Pin definitions and functions TLS115B0EJ in PG-DSO-8 EP package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Pin assignment TLS115B0LD in PG-TSON-10 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Pin definitions and functions TLS115B0LD in PG-TSON-10 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Block description and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Tracking regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Typical performance characteristics tracking regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Typical performance characteristics current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5 Enable input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6 Typical performance characteristics Enable input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7 Adjust input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.8 Typical performance characteristics Adjust input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2 Selection of external components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.1 Input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.2 Output pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2.3 Adjust pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3 Thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4 Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table of Contents
TLS115B0
High Precision Voltage Tracker
Block diagram
Data Sheet 4 Rev. 1.00
2016-10-13
1 Block diagram
Figure 1 TLS115B0 block diagram
GND
OUT
IN
Temperature
Shutdown
EN
Enable
Protection
Circuits
ADJ
TLS115B0
High Precision Voltage Tracker
Pin configuration
Data Sheet 5 Rev. 1.00
2016-10-13
2 Pin configuration
2.1 Pin assignment TLS115B0EJ in PG-DSO-8 EP package
Figure 2 TLS115B0EJ pin configuration
2.2 Pin definitions and functions TLS115B0EJ in PG-DSO-8 EP package
Pin Symbol Function
1OUT Tracker output
150 mA output current capability
Connect to GND with a capacitor close to the pins, respecting capacitance and
ESR requirements given in Table 2 Functional range.
2N.C. Not connected
3GND Ground
4N.C. Not connected
5ADJ Adjust
Connect to the reference voltage
6N.C. Not Connected
7EN Enable input
“High” signal: enables the tracker
“Low” signal: disables the tracker
If the enable function is not required, then connect EN to IN.
8IN Input
It is recommended to connect a small ceramic capacitor to GND close to the pins
in order to compensate line influence.
Pad Exposed Pad
Connect to GND
IN
EN
N.C.
OUT
N.C.
GND
N.C. ADJ
1
3
2
8
7
6
45
TLS115B0
High Precision Voltage Tracker
Pin configuration
Data Sheet 6 Rev. 1.00
2016-10-13
2.3 Pin assignment TLS115B0LD in PG-TSON-10 package
Figure 3 TLS115B0LD pin configuration
2.4 Pin definitions and functions TLS115B0LD in PG-TSON-10 package
Pin Symbol Function
1OUT Tracker output
150 mA output current capability
Connect to GND with a capacitor close to the pins, respecting capacitance and
ESR requirements given in Table 2 Functional range.
3GND Ground
6ADJ Adjust
Connect to the reference voltage
8EN Enable input
“High” signal: enables the tracker
“Low” signal: disables the tracker
If the enable function is not required, then connect EN to IN.
10 IN Input
It is recommended to connect a small ceramic capacitor to GND close to the pins
in order to compensate line influence.
2, 4, 5, 7, 9 N.C. Not connected
Pad Exposed Pad
Connect to GND
OUT IN
N.C.
GND
N.C.
EN
ADJ
1
2
3
TSON-10
5
10
9
8
7
6
4N.C.
N.C.
N.C.
TLS115B0
High Precision Voltage Tracker
General product characteristics
Data Sheet 7 Rev. 1.00
2016-10-13
3 General product characteristics
3.1 Absolute maximum ratings
Notes
1. Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2. Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are
not designed for continuous repetitive operation.
Table 1 Absolute maximum ratings1)
Tj = -40°C to +150°C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
1) Not subject to production test, specified by design.
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Input IN
Voltage VIN -16 45 V P_3.1.1
Enable EN
Voltage VEN -16 45 V P_3.1.2
Adjust ADJ
Voltage VADJ -16 45 V P_3.1.3
Output OUT
Voltage VOUT -5 45 V P_3.1.4
Temperatures
Junction temperature Tj-40 150 °C P_3.1.6
Storage temperature Tstg -55 150 °C P_3.1.7
ESD Absorption
ESD susceptibility to GND VESD,HBM -4 4 kV Human Body
Model (HBM)2)
2) ESD susceptibility, HBM according to ANSI/ESDA/JEDEC JS001 (1.5 k, 100 pF)
P_3.1.8
ESD susceptibility to GND VESD,CDM -1 1 kV Charge Device
Model (CDM)3)
P_3.1.9
ESD susceptibility to GND VESD,CDM -1 1 kV Charge Device
Model (CDM) at
corner pins3)
3) ESD susceptibility, Charged Device Model “CDM” according JEDEC JESD22-C101
P_3.1.10
TLS115B0
High Precision Voltage Tracker
General product characteristics
Data Sheet 8 Rev. 1.00
2016-10-13
3.2 Functional range
Note: Within the functional or operating range, the IC operates as described in the circuit description. The
electrical characteristics are specified within the conditions given in the Electrical Characteristics
table.
3.3 Thermal resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more
information, go to www.jedec.org.
Table 2 Functional range
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Input voltage range VIN 4 – 45 V P_3.2.1
Adjust input voltage range
(voltage tracking range)
VADJ 2 – 14 V P_3.2.2
Output capacitor COUT 1 ––µF
1)2)
1) The minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 30%.
2) Not subject to production test, specified by design.
P_3.2.3
Output capacitor’s
Equivalent Series
Resistance
ESR
(COUT)
––5 2) P_3.2.4
Junction temperature Tj-40 150 °C 2) P_3.2.5
Table 3 Thermal resistance TLS115B0EJ in PG-DSO-8 EP package
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Junction to case1)
1) Not subject to production test, specified by design.
RthJC 18 K/W P_3.3.1
Junction to pin1) RthJP 85 K/W P_3.3.2
Junction to ambient1) RthJA –50–K/W2s2p board
2)
2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The product (chip
and package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 2 inner copper layers (2×7m Cu, 2×3m Cu).
Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.
P_3.3.3
Junction to ambient1) RthJA 157 K/W 1s0p board, footprint
only3)
3) Specified RthJA value is according to JEDEC JESD 51-3 at natural convection on FR4 1s0p board; The product (chip and
package) was simulated on a 76.2×114.3×1.5 mm
3 board with 1 copper layer (1 x 70 µm Cu).
P_3.3.4
Junction to ambient1) RthJA 77 K/W 1s0p board, 300 mm2
heatsink area on PCB3)
P_3.3.5
Junction to Ambient1) RthJA 63 K/W 1s0p board, 600 mm2
heatsink area on PCB3)
P_3.3.6
TLS115B0
High Precision Voltage Tracker
General product characteristics
Data Sheet 9 Rev. 1.00
2016-10-13
Table 4 Thermal resistance TLS115B0LD in PG-TSON-10 package
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Junction to case1)
1) Not subject to production test, specified by design.
RthJC 17 K/W P_3.3.7
Junction to pin1) RthJP 96 K/W P_3.3.8
Junction to ambient1) RthJA –67–K/W2s2p board
2)
2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The product (chip
and package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 2 inner copper layers (2×7m Cu, 2×3m Cu).
Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.
P_3.3.9
Junction to ambient1) RthJA 194 K/W 1s0p board, footprint
only3)
3) Specified RthJA value is according to JEDEC JESD 51-3 at natural convection on FR4 1s0p board; The product (chip and
package) was simulated on a 76.2×114.3×1.5 mm
3 board with 1 copper layer (1 x 70 µm Cu).
P_3.3.10
Junction to ambient1) RthJA 82 K/W 1s0p board, 300 mm2
heatsink area on PCB3)
P_3.3.11
Junction to ambient1) RthJA 68 K/W 1s0p board, 600 mm2
heatsink area on PCB3)
P_3.3.12
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 10 Rev. 1.00
2016-10-13
4 Block description and electrical characteristics
4.1 Tracking regulator
The regulator controls the output voltage VOUT by comparing it to the voltage applied to the ADJ pin and
driving a PNP pass transistor accordingly. The stability of the control loop depends on:
the output capacitor COUT
•load current
chip temperature
the poles and zeroes in the frequency response of the circuit consisting of TLS115B0 and the load
An input capacitor CIN is strongly recommended for buffering the line influence.
To ensure stable operation, the output capacitor’s capacitance and its equivalent series resistance ESR
requirements given in the table “Functional range” on Page 8 must be maintained. For details see also the
typical performance graph “Output capacitor ESR(COUT) vs. output current IOUT” on Page 14. The output
capacitor must be sized suitably to buffer load transients.
Connect each capacitor close to the pins.
Protection circuitry prevents the TLS115B0 itself as well as the application from destruction in case of
catastrophic events. These safeguards contain:
output current limitation
reverse polarity protection
thermal shutdown
In order to protect the pass element and the package from excessive power dissipation the TLS115B0 reduces
the maximum output current at high input voltage.
The TLS115B0 allows a negative supply voltage. However, in reverse polarity condition several low currents
flowing into the TLS115B0 increase junction temperature. Thermal design must consider this effect, because
in reverse polarity condition the overtemperature protection circuit does not operate.
The overtemperature protection circuit prevents immediate destruction of the TLS115B0 in certain fault
conditions (for example a permanent short circuit at output) by switching off the power stage. After the chip
cools down, the regulator restarts. If the fault is not removed, then this leads to an oscillatory behavior of the
output voltage. Please note, that a junction temperature above 150°C is outside the maximum ratings and
reduces the lifetime of the TLS115B0.
Table 5 Electrical characteristics tracking regulator
VIN = 13.5 V, 2.0 V VADJ 14 V, VEN 2.0 V, Tj = -40°C to +150°C, all voltages with respect to ground, positive
current flowing into pin (unless otherwise specified).
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Tracking output
Output voltage tracking
accuracy
VOUT = VADJ - VOUT
VOUT -5 5 mV 5.5 V VIN 22 V;
0.1 mA IOUT
150 mA;
2V VADJ VIN - 1 V
P_4.1.1
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 11 Rev. 1.00
2016-10-13
Output voltage tracking
accuracy
VOUT = VADJ - VOUT
VOUT -5 5 mV 5.5 V VIN 32 V;
0.1 mA IOUT
70 mA;
2V VADJ VIN - 1 V
P_4.1.2
Load regulation
steady-state
VOUT,load -4 -0.1 mV IOUT = 0.1 mA to
150 mA;
VADJ = 5 V
P_4.1.3
Line regulation
steady-state
VOUT,line –0.14mVVIN = 5.5 V to 32 V;
IOUT = 10 mA;
VADJ = 5 V
P_4.1.4
Power supply ripple
rejection1)
PSRR –85–dBfripple = 100 Hz;
Vripple = 1 Vpp;
IOUT = 10 mA;
COUT = 10 μF,
ceramic type
P_4.1.5
Output current limitation IOUT,max 151 350 500 mA VOUT = VADJ - 0.1 V;
VADJ = 5 V
P_4.1.6
Reverse current IOUT,rev -3.5 -1.7 mA VIN = 0 V;
VOUT = 16 V;
VADJ = 5 V
P_4.1.9
Reverse current at negative
input voltage
IIN,rev -4 -2 mA VIN = -16 V;
VOUT = 0 V;
VADJ = 5 V
P_4.1.10
Dropout voltage2)
Vdr = VIN - VOUT
Vdr 250 500 mV IOUT = 150 mA;
VADJ = 5 V2)
P_4.1.11
Overtemperature protection
Overtemperature shutdown
threshold1)
Tj,sd 175 °C Tj increasing due to
power dissipation
generated by the IC
P_4.1.15
Overtemperature shutdown
threshold hysteresis1)
Tj,sdh –15–K P_4.1.16
1) Not subject to production test, specified by design
2) Measured when the output voltage VOUT has dropped 100 mV from the nominal value obtained at VIN = 13.5V
Table 5 Electrical characteristics tracking regulator (cont’d)
VIN = 13.5 V, 2.0 V VADJ 14 V, VEN 2.0 V, Tj = -40°C to +150°C, all voltages with respect to ground, positive
current flowing into pin (unless otherwise specified).
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 12 Rev. 1.00
2016-10-13
4.2 Typical performance characteristics tracking regulator
Tracking accuracy ΔVOUT vs.
junction temperature Tj
Output current limitation IOUT,max vs.
input voltage VIN
Output voltage VOUT vs.
adjust voltage VADJ
Output voltage VOUT vs.
input voltage VIN
0 50 100 150
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
T
j
[°C]
ΔV
OUT
[mV]
V
IN
= 13.5V
I
OUT
= 100 μA
I
OUT
= 75 mA
I
OUT
= 150 mA
0 10 20 30 40
0
100
200
300
400
500
600
V
IN
[V]
I
OUT,max
[mA]
V
ADJ
= 5 V
T
j
= 25 °C
T
j
= 150 °C’
0 1 2 3 4 5
0
1
2
3
4
5
6
V
ADJ
[V]
V
OUT
[V]
V
IN
= 13.5 V
I
OUT
= 10 mA
T
j
= 25 °C
0 2 4 6 8 10
0
1
2
3
4
5
6
7
V
IN
[V]
V
OUT
[V]
V
ADJ
= 5 V
I
OUT
= 10 mA
T
j
= 25 °C
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 13 Rev. 1.00
2016-10-13
Load regulation ΔVOUT,load vs.
output current IOUT
Line regulation ΔVOUT,line vs.
input voltage VIN
Dropout voltage Vdr vs.
junction temperature Tj
Dropout voltage Vdr vs.
output current IOUT
0 50 100 150
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
I
OUT
[mA]
ΔV
OUT,load
[mV]
V
IN
= 13.5V
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
5 10 15 20 25 30 35 40
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
V
IN
[V]
ΔV
OUT,line
[mV]
I
OUT
= 10 mA
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
0 50 100 150
0
50
100
150
200
250
300
350
400
450
T
j
[°C]
V
dr
[mV]
V
IN
= 13.5V
I
OUT
= 1 mA
I
OUT
= 50 mA
I
OUT
= 150 mA
0 50 100 150
0
50
100
150
200
250
300
350
400
450
I
OUT
[mA]
V
dr
[mV]
V
IN
= 13.5V
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 14 Rev. 1.00
2016-10-13
Reverse current IIN,rev vs.
input voltage VIN
Reverse current IOUT,rev vs.
output voltage VOUT
Power supply ripple rejection PSRR vs.
ripple frequency fr
Output capacitor ESR(COUT) vs.
output current IOUT
−15 −10 −5 0
−4
−3.5
−3
−2.5
−2
−1.5
−1
−0.5
0
V
IN
[V]
I
IN,rev
[mA]
V
ADJ
= 5 V
V
OUT
= 0 V
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
0 5 10 15
−4
−3.5
−3
−2.5
−2
−1.5
−1
−0.5
0
V
OUT
[V]
I
OUT,rev
[mA]
V
ADJ
= 5 V
V
IN
= 0 V
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
10
−2
10
−1
10
0
10
1
10
2
10
3
0
10
20
30
40
50
60
70
80
90
100
f [kHz]
PSRR [dB]
I
OUT
= 10 mA
C
OUT
= 10 μF
V
IN
= 13.5 V
V
ripple
= 1 Vpp
T
j
= 25 °C
0 50 100 150
10
−2
10
−1
10
0
10
1
I
OUT
[mA]
ESR(C
OUT
) [Ω]
C
OUT
= 1 μF
6 V < V
IN
< 15 V
−40 °C < T
j
< 150 °C
Stable Region
Unstable Region
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 15 Rev. 1.00
2016-10-13
4.3 Current consumption
4.4 Typical performance characteristics current consumption
Table 6 Electrical characteristics current consumption
VIN = 13.5 V, 2.0 V VADJ 14 V, VEN 2.0 V, Tj = -40°C to +150°C, all voltages with respect to ground, positive
current flowing into pin (unless otherwise specified).
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Current consumption
Stand-by mode
Iq,off = IIN
Iq,off –0.1AVEN 0.4 V; Tj
125°C
P_4.3.1
Current consumption
Iq = IIN - IOUT
Iq–5590µAIOUT 0.1 mA;
VADJ = 5 V;
Tj 125 °C
P_4.3.2
Current consumption
Iq = IIN - IOUT
Iq–714mAIOUT 150 mA;
VADJ = 5 V
P_4.3.3
Current consumption Iq vs.
output current IOUT
Current consumption Iq vs.
input voltage VIN
0 50 100 150
0
2
4
6
8
10
12
I
OUT
[mA]
I
q
[mA]
V
IN
= 13.5 V
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
10 15 20 25 30 35 40
0
100
200
300
400
500
600
700
800
V
IN
[V]
I
q
[μA]
V
ADJ
= 5 V
I
OUT
= 100 μA
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 16 Rev. 1.00
2016-10-13
Current consumption Iq vs.
junction temperature Tj
Current consumption Iq vs.
junction temperature Tj (IOUT low)
Current consumption in OFF mode Iq,off vs.
junction temperature Tj
0 50 100 150
0
2
4
6
8
10
12
T
j
[°C]
I
q
[mA]
V
IN
= 13.5 V
I
OUT
= 50 mA
I
OUT
= 100 mA
I
OUT
= 150 mA
0 50 100 150
0
50
100
150
T
j
[°C]
I
q
[μA]
V
IN
= 13.5 V
I
OUT
= 100 μA
0 50 100 150
0
0.5
1
1.5
2
2.5
3
3.5
4
T
j
[°C]
I
q,off
[μA]
V
IN
= 13.5 V
V
EN
0.4 V
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 17 Rev. 1.00
2016-10-13
4.5 Enable input
In order to minimize the quiescent current, the TLS115B0 can be switched to stand-by mode by setting the
corresponding enable input “EN” to “low”.
If the EN pin is not connected, then the “low” level from the internal pull-down resistor switches off the
regulator.
4.6 Typical performance characteristics Enable input
Table 7 Electrical characteristics Enable input
VIN = 13.5 V, 2.0 V VADJ 14 V, Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing
into pin (unless otherwise specified).
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Enable off voltage range VEN,off ––0.8VVOUT =0V,
IOUT 5μA,
Tj125°C
P_4.5.1
Enable on voltage range VEN,on 2––VVOUT settled P_4.5.2
Enable input current IEN –24µAVEN =5V P_4.5.3
Enable input current IEN vs.
Enable input voltage VEN
0 10 20 30 40
0
5
10
15
20
25
30
35
40
V
EN
[V]
I
EN
[μA]
V
IN
= 13.5V
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
TLS115B0
High Precision Voltage Tracker
Block description and electrical characteristics
Data Sheet 18 Rev. 1.00
2016-10-13
4.7 Adjust input
The Adjust input must be connected to the reference voltage, which is tracked.
4.8 Typical performance characteristics Adjust input
Table 8 Electrical characteristics Adjust input
VIN = 13.5 V, 2.0 V VADJ 14 V, VEN 2.0 V, Tj = -40°C to +150°C, all voltages with respect to ground, positive
current flowing into pin (unless otherwise specified).
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Adjust input current IADJ –0.031μAVADJ =5V P_4.7.1
Adjust input current IADJ vs.
Adjust input voltage VADJ
Adjust input current IADJ vs.
junction temperature Tj
2 4 6 8 10 12
0
10
20
30
40
50
60
70
80
90
100
V
ADJ
[V]
I
ADJ
[nA]
V
IN
= 13.5V
I
OUT
= 100 μA
T
j
= −40 °C
T
j
= 25 °C
T
j
= 150 °C
0 50 100 150
0
10
20
30
40
50
60
70
80
90
100
T
j
[°C]
I
ADJ
[nA]
V
IN
= 13.5 V
V
ADJ
= 5 V
I
OUT
= 100 μA
TLS115B0
High Precision Voltage Tracker
Application information
Data Sheet 19 Rev. 1.00
2016-10-13
5 Application information
Note: The following information is given as a hint for the implementation of the device only and shall not
be regarded as a description or warranty of a certain functionality, condition or quality of the device.
5.1 Application diagram
Figure 4 TLS115B0 application circuit
5.2 Selection of external components
5.2.1 Input pin
Figure 4 shows the typical input circuitry for a voltage tracking regulator. The following external components
at the input are recommended in case of possible external disturbance.
A ceramic capacitor CIN1 (100 nF to 470 nF) at the input filters high frequency disturbance imposed by the line,
such as ISO pulses 3a/b. Place CIN1 very close to the input pin of the voltage tracking regulator on the PCB.
An aluminum electrolytic capacitor CIN2 (10 µF to 470 µF) at the input smoothens high energy pulses, such as
ISO pulse 2a. Place CIN2 close to the input pin of the voltage tracking regulator on the PCB.
An accordingly sized overvoltage suppressor diode D1 suppresses high voltage beyond the maximum ratings
of the circuit components and protects the devices from damage due to overvoltage.
EN
ADJ
IN OUT
GND
TLS115B0
Micro
Controller
VDD
Main
Regulator
IQ
GND
VBAT
e.g. off board
loads, sensors
VREF
I/O
CIN1
CIN2 COUT
D1
TLS115B0
High Precision Voltage Tracker
Application information
Data Sheet 20 Rev. 1.00
2016-10-13
5.2.2 Output pin
An output capacitor COUT is mandatory for the stability of the voltage tracking regulator. The requirements for
COUT are described in the table “Functional range” on Page 8. The graph “Output capacitor ESR(COUT) vs.
output current IOUT” on Page 14 shows the stable operation range of the TLS115B0.
For automotive environment, ceramic capacitors with X5R or X7R dielectrics are recommended.
Place COUT on the same side of the PCB as the regulator itself and as close as possible to both the tracker
output pin and GND pin.
In case of rapid transients of input voltage or load current, COUT must be dimensioned properly to ensure the
output stability in the application.
5.2.3 Adjust pin
Figure 4 shows a typical Adjust circuitry for a voltage tracking regulator. Typically the Adjust Pin is connected
to a fixed voltage reference that the regulator tracks. In the example of the application diagram ADJ is
connected to the supply voltage of a microcontroller. The voltage reference can also be adjusted by a voltage
divider.
5.3 Thermal considerations
Knowing the input voltage, the output voltage and the load profile of the application, the total power
dissipation can be calculated:
(5.1)
with
PD: continuous power dissipation
VIN: input voltage
VOUT: output voltage
IOUT: output current
Iq: quiescent current
The maximum acceptable thermal resistance RthJA can then be calculated:
(5.2)
with
Tj,max: maximum allowed junction temperature
Ta: ambient temperature
Based on the above calculation the proper PCB type and the necessary heat sink area can be determined with
reference to the specification in “Thermal resistance” on Page 8.
Example
Application conditions:
VIN = 13.5 V
VOUT =VADJ =5V
IOUT =100mA
RthJA max,
Tjmax,Ta
PD
----------------------------=
TLS115B0
High Precision Voltage Tracker
Application information
Data Sheet 21 Rev. 1.00
2016-10-13
Ta= 75°C
Calculation of RthJA,max:
PD=(VINVOUT) x IOUT + VIN x Iq
= (13.5V – 5V) x 100 mA + 13.5 V x 3.5 mA
= 0.897 W
RthJA,max =(Tj,maxTa) / PD
= (150°C – 75°C) / 0.897 W
= 83.61 K/W
As a result, the PCB design must ensure a thermal resistance RthJA lower than 83.61 K/W. According to
“Thermal resistance” on Page 8, at least 300 mm² heatsink area is required on the FR4 1s0p PCB, or the FR4
2s2p board can be used.
5.4 Further application information
For further information you may contact http://www.infineon.com/
Data Sheet 22 Rev. 1.00
2016-10-13
TLS115B0
High Precision Voltage Tracker
Package outlines
6 Package outlines
Figure 5 PG-DSO-8 EP
PG-DSO-8-27-PO V01
14
85
8
14
5
8x
0.41
±0.092)
M
0.2 DC A-B
1.27 C
Stand Off
+0
-0.1
0.1
(1.45)
1.7 MAX.
0.08
Seating Plane
C
A
B
4.9
±0.11)
A-BC0.1 2x
3) JEDEC reference MS-012 variation BA
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Dambar protrusion shall be maximum 0.1 mm total in excess of lead width
Bottom View
±0.2
3
±0.2
2.65
0.2
±0.2
D6
M
D 8x
0.64
±0.25
3.9
±0.11)
0.1
0.35 x 45˚
CD2x
+0.06
0.19
8
˚
MAX.
Index Marking
Data Sheet 23 Rev. 1.00
2016-10-13
TLS115B0
High Precision Voltage Tracker
Package outlines
Figure 6 PG-TSON-10
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be compliant
with government regulations the device is available as a green product. Green products are RoHS-Compliant
(i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
Pin 1 Marking Pin 1 Marking
PG-TSON-10-2-PO V02
±0.1
0.2
±0.1
0.25
±0.1
0.55
0.96
±0.1
2.58
±0.1
0
+0.05
0.1
±0.1
0.36
±0.1
0.53
±0.1
±0.1
0.25
0.5
±0.1
3.3
±0.1
3.3
±0.1
1
±0.1
0.71
±0.1
1.63
±0.1
1.48
±0.1
Z
0.05
0.07 MIN.
Z (4:1)
For further information on alternative packages, please visit our website:
http://www.infineon.com/packages.Dimensions in mm
TLS115B0
High Precision Voltage Tracker
Revision history
Data Sheet 24 Rev. 1.00
2016-10-13
7 Revision history
Revision Date Changes
1.00 2016-10-13 Data Sheet - Initial Version
Trademarks of Infineon Technologies AG
µHVIC™, µIPM™, µPFC™, AU-ConvertIR™, AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, CoolDP™, CoolGaN™, COOLiR™, CoolMOS™, CoolSET™, CoolSiC™,
DAVE™, DI-POL™, DirectFET™, DrBlade™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPACK™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, GaNpowIR™,
HEXFET™, HITFET™, HybridPACK™, iMOTION™, IRAM™, ISOFACE™, IsoPACK™, LEDrivIR™, LITIX™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OPTIGA™,
OptiMOS™, ORIGA™, PowIRaudio™, PowIRStage™, PrimePACK™, PrimeSTACK™, PROFET™, PRO-SIL™, RASIC™, REAL3™, SmartLEWIS™, SOLID FLASH™,
SPOC™, StrongIRFET™, SupIRBuck™, TEMPFET™, TRENCHSTOP™, TriCore™, UHVIC™, XHP™, XMC™.
Trademarks updated November 2015
Other Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2016-10-13
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2016 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
IMPORTANT NOTICE
The information given in this document shall in no
event be regarded as a guarantee of conditions or
characteristics ("Beschaffenheitsgarantie").
With respect to any examples, hints or any typical
values stated herein and/or any information regarding
the application of the product, 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.
In addition, any information given in this document is
subject to customer's compliance with its obligations
stated in this document and any applicable legal
requirements, norms and standards concerning
customer's products and any use of the product of
Infineon Technologies in customer's applications.
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.
Please read the Important Notice and Warnings at the end of this document