TLS850B0TB V33 [INFINEON]

3V-40V的输入电压范围和 20μA 的极低静态电流使其完美适合汽车或其它永久连接电池的电源系统。新的回路概念结合了快速调节和非常高的稳定性，输出端只需要一个 1μF 的小型陶瓷电容即可。输出电流在100毫安以下时，典型的压差非常低，数值为120 mV 。工作范围从仅 3 V 的输入电压开始（扩展工作范围）。因此，TLS850B0TBV33 适用于需要在启动条件下运行的汽车系统。通过“启用”功能，可以打开和关闭器件。内部保护功能（如输出电流限制和过温关断）可防止器件因输出接地短路、过流和过热等故障而立即损坏。;


型号：	TLS850B0TB V33
厂家：	Infineon
描述：	3V-40V的输入电压范围和 20μA 的极低静态电流使其完美适合汽车或其它永久连接电池的电源系统。新的回路概念结合了快速调节和非常高的稳定性，输出端只需要一个 1μF 的小型陶瓷电容即可。输出电流在100毫安以下时，典型的压差非常低，数值为120 mV 。工作范围从仅 3 V 的输入电压开始（扩展工作范围）。因此，TLS850B0TBV33 适用于需要在启动条件下运行的汽车系统。通过“启用”功能，可以打开和关闭器件。内部保护功能（如输出电流限制和过温关断）可防止器件因输出接地短路、过流和过热等故障而立即损坏。电池
文件：	总23页 (文件大小：857K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TLS850B0TBV33

Low dropout linear voltage regulator

Overview

Features

•

Wide input voltage range from 3.0 V to 40 V

Fixed output voltage 3.3 V

Output voltage accuracy ≤ ±2 %

Output current capability up to 500 mA

Ultra low current consumption, typical 20 µA

Very low dropout voltage, typical 120 mV at 100 mA

Stable with ceramic output capacitor of 1 µF

Enable

Overtemperature shutdown

Output current limitation

Wide temperature range

Green Product (RoHS compliant)

Potential applications

•

Automotive or other supply systems that are connected to the battery permanently

•

Automotive supply systems that need to operate in cranking condition

Product validation

Qualified for Automotive Applications. Product Validation according to AEC-Q100/101

Description

The TLS850B0TBV33 is a high performance, very low dropout linear voltage regulator for 3.3 V supply in a PG-

TO263-5 package.

The input voltage range of 3 V to 40 V and a very low quiescent current of 20 µA make it the perfect match for

automotive or other supply systems connected to the battery permanently.

The new loop concept combines fast regulation and very high stability. Below an output current of 100 mA the

typical dropout voltage is below 100 mV. The operating range starts at an input voltage of only 3 V (extended

Data Sheet

www.infineon.com/power

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Overview

operating range). This makes the TLS850B0TBV33 suitable for automotive systems that need to operate

during cranking condition.

The device can be switched on and off by the Enable feature.

Internal protection features such as output current limitation and overtemperature shutdown protect the

device from immediate damage due to failures such as output shorted to GND, overcurrent and

overtemperature.

Choosing external components

An input capacitor C_Iis recommended to compensate line influences.

The output capacitor C_Qis necessary for the stability of the regulating circuit. TLS850B0TBV33 is designed to

operate stable with low ESR ceramic capacitors.

Type

Package

Marking

TLS850B0TBV33

PG-TO263-5

850B0V33

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Table of contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Choosing external components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1

3.2

Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pin assignment TLS850B0TBV33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pin definitions and functions TLS850B0TBV33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1

4.2

4.3

Block description and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Voltage regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Typical performance characteristics voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Typical performance characteristics current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Typical performance characteristics enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1

5.2

5.3

5.4

5.5

5.6

Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Selection of external components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Output pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Reverse polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.1

6.2

6.2.1

6.2.2

6.3

6.4

6.5

Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block diagram

Current

Limitation

Enable

Bandgap

Reference

Temperature

Shutdown

GND

Figure 1

Block diagram TLS850B0TBV33

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Pin configuration

3.1

Pin assignment TLS850B0TBV33

1 2 3 4 5

Figure 2

Pin configuration

3.2

Pin definitions and functions TLS850B0TBV33

Symbol Function

Input

It is recommended to place a small ceramic capacitor (for example 100 nF) to GND, close

to the pins, in order to compensate line influences.

Enable (integrated pull-down resistor)

Enable the IC with “high” input signal;

Disable the IC with “low” input signal;

GND

n.c.

Ground

Not connected

Leave open or connect to GND

Output

Connect output capacitor C_Qto GND close to the pin, respecting the values specified for

its capacitance and ESR in “Functional range” on Page 7.

Heat Slug GND

Heat Slug

Connect to heatsink area;

Connect to GND

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

General product characteristics

4.1

Absolute maximum ratings

Table 1

Absolute maximum ratings¹⁾

T_j= -40°C to +150°C; all voltages with respect to ground (unless otherwise specified)

Parameter

Symbol

Values

Unit Note or

Test Condition

Number

Min. Typ. Max.

Input I, Enable EN

Voltage

V_I, V_EN

-0.3

–

P_4.1.1

P_4.1.2

Output Q

Voltage

V_Q

–

Temperatures

Junction temperature

Storage temperature

ESD absorption

ESD susceptibility to GND

T_j

-40

-55

–

150

°C

–

P_4.1.3

P_4.1.4

T_stg

V_ESD

-2

–

²⁾HBM

³⁾CDM

P_4.1.5

P_4.1.6

P_4.1.7

V_ESD

-500

-750

500

750

ESD susceptibility of Corner Pins to

GND

V_ESD1,7

1) Not subject to production test, specified by design.

2) ESD susceptibility, HBM according to ANSI/ESDA/JEDEC JS001 (1.5 kΩ, 100 pF)

3) ESD susceptibility, Charged Device Model (CDM) according to JEDEC JESD22-C101

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 device 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.

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

General product characteristics

4.2

Functional range

Table 2

Functional range

T_j= -40°C to +150°C; all voltages with respect to ground (unless otherwise specified)

Parameter

Symbol

Values

Unit Note or

Test Condition

Number

Min.

Typ.

Max.

Input voltage range

V_I

V_Q,nom+ V_dr

–

P_4.2.1

P_4.2.2

P_4.2.3

P_4.2.4

Extended input voltage range

Enable voltage range

V_I,ext

V_EN

C_Q

3.0

–

3)4)

Output capacitor’s

–

µF

–

requirements for stability

ESR

ESR(C_Q)

T_j

–

Ω

–

P_4.2.5

P_4.2.6

ESR

–

100

150

Ω

< 25 V

Junction temperature

-40

°C

–

1) Output current is limited internally and depends on the input voltage, see Electrical Characteristics for more details.

2) If V_I,ext,min≤ V_I≤ V_Q,nom+ V_dr, then V_Q= V_I- V_dr. If V_I< V_I,ext,min, then V_Qcan drop to 0 V.

3) Not subject to production test, specified by design.

4) The minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 30%

Note:

Within the functional or operating range, the device operates as described in the circuit description.

The electrical characteristics are specified within the conditions given in the Electrical

Characteristics table.

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

General product characteristics

4.3

Thermal resistance

Note:

This thermal data was generated in accordance with JEDEC JESD51 standards. For more

information, go to www.jedec.org.

Table 3

Thermal resistancePG-TO263-5

Parameter

Symbol

Values

Min. Typ.

Unit Note or

Test Condition

Number

Max.

Junction to case

R_thJC

R_thJA

–

3.2

–

K/W

–

P_4.3.1

P_4.3.2

P_4.3.3

Junction to ambient

¹⁾²⁾2s2p board

¹⁾³⁾1s0p board,

footprint only

Junction to ambient

R_thJA

–

K/W

¹⁾³⁾1s0p board,

300 mm²heatsink

area on PCB

¹⁾³⁾1s0p board,

600 mm²heatsink

area on PCB

P_4.3.4

P_4.3.5

R_thJA

1) Not subject to production test, specified by design

2) Specified R_thJAvalue is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The Product (Chip

+ Package) was simulated on a 76.2 x 114.3 x 1.5 mm³ board with 2 inner copper layers (2 x 70 µm Cu, 2 x 35 µm Cu).

Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.

3) Specified R_thJAvalue is according to JEDEC JESD 51-3 at natural convection on FR4 1s0p board; The Product (Chip +

Package) was simulated on a 76.2 × 114.3 × 1.5 mm³board with 1 copper layer (1 x 70 µm Cu).

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

5.1

Voltage regulation

The output voltage V_Qis divided by a resistor network. This fractional voltage is compared to an internal

voltage reference and the pass transistor is driven accordingly.

The control loop stability depends on the following factors:

•

output capacitor C_Q

load current

chip temperature

internal circuit design

To ensure stable operation, the output capacitor’s capacitance and its equivalent series resistor (ESR)

requirements given in “Functional range” on Page 7 must be maintained. Because the output capacitor

must buffer load steps, it must be sized according to the requirements of the application.

An input capacitor C_Iis recommended to compensate line influences. In order to block influences such as

pulses and HF distortion at the input, an additional reverse polarity protection diode and a combination of

several capacitors for filtering should be used. Connect the capacitors close to the component’s terminals.

In order to prevent overshoots during start-up, a slope control function is implemented. This significantly

reduces output voltage overshoots during start-up, mostly independent from load.

If the load current exceeds the specified limit, for example due to a short circuit, then the TLS850B0TBV33

limits the output current and the output voltage decreases.

The overtemperature shutdown circuit prevents the TLS850B0TBV33 from immediate destruction in fault

condition, for example due to a permanent short-circuit at the output, by switching off the power stage. After

the chip has cooled down, the regulator restarts. This leads to an oscillatory behavior of the output voltage

until the fault is removed. However, any junction temperature above 150°C is outside the maximum ratings

and therefore significantly reduces the life time of the TLS850B0TBV33.

Regulated

Output Voltage

Supply

I_Q

I_I

Current Limitation

Enable

C_I

V_I

V_Q

Bandgap

Reference

LOAD

ESR

Temperature

Shutdown

C_Q

GND

Figure 3

Voltage regulation

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

V_I

V_dr

V_Q,nom

V_Q

V_I,ext,min

Figure 4

Output voltage vs. input voltage

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

Table 4

Electrical characteristics voltage regulator 3.3 V version

T_j= -40°C to +150°C, V_I= 13.5 V, all voltages with respect to ground (unless otherwise specified)

Typical values are given at T_j= 25°C

Parameter

Symbol

Values

Unit Note or Test Condition Number

Min. Typ. Max.

Output voltage accuracy

V_Q

3.23 3.3

3.37

0.05 mA < I_Q< 500 mA

4.6 V < V_I< 28 V

P_5.1.19

P_5.1.20

P_5.1.27

3.23 3.3

0.05 mA < I_Q< 200 mA

3.85 V < V_I< 40 V

Output voltage startup

slew rate

dV_Q/dt 3.0

V/ms V_I> 18 V/ms

C_Q= 1 µF

0.33 V < V_Q< 2.97 V

Output current limitation

I_Q,max

501

750 1100 mA 0 V < V_Q< V_Q,nom- 0.1 V

P_5.1.28

P_5.1.30

Load regulation

steady-state

ΔV_Q,load-15

-5

–

mV I_Q= 0.05 mA to 500 mA

V_I= 6.5 V

Line regulation

steady-state

ΔV_Q,line

V_dr

–

mV V_I= 8 V to 32 V

I_Q= 5 mA

P_5.1.31

P_5.1.32

P_5.1.33

P_5.1.34

P_5.1.35

P_5.1.36

Dropout voltage

V_dr= V_I- V_Q

–

300 600 mV ¹⁾I_Q= 250 mA

Dropout voltage

V_dr= V_I- V_Q

V_dr

–

120 240 mV ¹⁾I_Q= 100 mA

Power Supply Ripple Rejection

PSRR

T_j,sd

–

= 100 Hz

ripple

_ripple= 0.5 Vpp

Overtemperature shutdown

threshold

151

–

200 °C

²⁾T_jincreasing

Overtemperature shutdown

threshold hysteresis

T_j,sdh

–

²⁾T_jdecreasing

1) Measured when the output voltage V_Qhas dropped 100 mV from the nominal value obtained at V_I= 13.5 V

2) Not subject to production test, specified by design

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

5.2

Typical performance characteristics voltage regulator

Output voltage V_Qversus

junction temperature T_j

Dropout voltage V_drversus

output current I_Q

3.4

3.35

3.3

T_j= −40 °C

T_j= 25 °C

T_j= 150 °C

800

700

600

500

400

300

200

100

3.25

3.2

3.15

3.1

V_I= 13.5 V

_Q= 100 mA

_Q,nom= 3.3 V

3.05

−40

100

150

100

200

300

400

500

T_j[°C]

I_Q[mA]

Load regulation ΔV_Q,loadversus

output current I_Q

Line regulation ΔV_Q,lineversus

input voltage V_I

0.7

1.5

T_j= −40 °C

V = 6.5 V

0.6

0.5

0.4

0.3

0.2

0.1

_IT = 25 °C

T_j= 25 °C

_Q^j= 1 μF

T_j= 150 °C

I_Q= 5 mA

_Q,nom= 3.3 V

0.5

−0.5

−1

−0.1

−0.2

−1.5

100

200

300

400

500

V_I[V]

I_Q[mA]

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

Output voltage V_Qversus

input voltage V_I

Output capacitor ESR(C_Q) versus

output current I_Q

3.5

10³

V_I< 25 V

V_I< 40 V

Unstable Region

10²

2.5

10¹

Stable Region

1.5

10⁰

0.5

C_Q= 1 μF

−40°C ≤ T ≤ 150°C

10⁻¹

T_j= 25 °C

100

200

300

400

500

V_I[V]

I_Q[mA]

Power Supply Ripple Rejection PSRR versus

ripple frequency f

Maximum output current I_Qversus

input voltage V_I

100

900

800

700

600

500

400

300

T_j= 25

I_Q= 10 mA

C_Q= 1 μF

V_I= 13.5 V

200

T_j= −40 °C

_ripple= 0.5 V_pp

100

T_j= 25 °C

V_Q,nom= 3.3 V

T_j= 150 °C

V_Q,forced= 0 V

30 40

10⁻²10⁻¹10⁰

10¹

10²10³

f [Hz]

10⁴

10⁵

10⁶

V_I[V]

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

5.3

Current consumption

Table 5

Electrical characteristics current consumption

T_j= -40°C to +150°C, V_I= 13.5 V (unless otherwise specified)

Typical values are given at T_j= 25°C

Parameter

Symbol

Values

Unit Note or Test Condition Number

Min. Typ. Max.

Current consumption

I_q= I_I

I_q,off

I_q

–

µA

V_EN= 0 V; T_j< 105°C

V_EN= 0.4 V; T_j< 125°C

P_5.3.1

P_5.3.3

P_5.3.4

P_5.3.5

P_5.3.6

Current consumption

I_q= I_I

–

Current consumption

I_q= I_I- I_Q

I_Q= 0.05 mA

T_j= 25°C

Current consumption

I_q= I_I- I_Q

I_q

I_Q= 0.05 mA

T_j< 125°C

¹⁾I_Q= 500 mA

T_j< 125°C

Current consumption

I_q= I_I- I_Q

I_q

1) Not subject to production test, specified by design

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

5.4

Typical performance characteristics current consumption

Current consumption I_qversus

output current I_Q

Current consumption I_qversus

input voltage V_I

100

I_Q= 100 μA

90 V_Q=3.3 V

T_j= −40 °C

T_j= 25 °C

T_j= 85 °C

T_j= 150 °C

T_j= −40 °C

T_j= 25 °C

T_j= 85 °C

T_j= 105 °C

100

200

300

400

500

V_I[V]

I_Q[mA]

Current consumption I_qversus

junction temperature T_j

Current consumption I_q,offversus

input voltage V_I(disabled)

T_j=−40 °C

T_j= 25 °C

T_j= 150 °C

V_I= 13.5 V

_Q= 1 μA

−40

T_j[°C]

100

V_I[V]

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

Current consumption I_q,offversus

junction temperature T_j(disabled)

V_I= 13.5 V

V_EN≤ 0.4 V

2.5

1.5

0.5

−40

T_j[°C]

100

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

5.5

Enable

The TLS850B0TBV33 can be switched on and off by the enable feature. Applying a “high” level as specified

below (for example battery voltage) to the EN pin enables the device. Applying a “low” level as specified below

(for example GND) shuts down the device. If a signal with slow slope is applied to the EN pin, then the built in

hysteresis of the enable feature avoids toggling between ON/OFF state.

Table 6

Electrical characteristics enable

T_j= -40°C to +150°C, V_I= 13.5 V, all voltages with respect to ground (unless otherwise specified)

Typical values are given at T_j= 25°C

Parameter

Symbol

Values

Unit Note or Test Condition Number

Min. Typ. Max.

“High” level input voltage

“Low” level input voltage

Enable threshold hysteresis

“High” level input current

V_EN,H

V_EN,L

V_EN,Hy

I_EN,H

R_EN

–

V_Qsettled

V_Q≤ 0.1 V

–

P_5.5.1

P_5.5.2

P_5.5.3

P_5.5.4

P_5.5.5

P_5.5.6

–

0.8

–

µA

MΩ

V_EN= 5 V

V_EN≤ 18 V

–

3.5

Enable internal pull-down

resistor

1.25

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Block description and electrical characteristics

5.6

Typical performance characteristics enable

Enable input current I_ENversus

Enable input voltage V_EN

Output voltage V_Qversus

time t (EN switched ON)

100

T_j=150 °C

V_Qfor T =150 °C

4.5

T_j= 25 °C

V_Qfor T = 25 °C

T_j= −40 °C

V_Qfor T = −40 °C

V_EN

3.5

2.5

1.5

0.5

1.5

t [ms]

V_EN[V]

Data Sheet

Rev.1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Application information

6.1

Application diagram

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.

Supply

Regulated Output Voltage

Load

(e. g.

Micro

D_I1

Current

Limitation

Controller)

D_I2

<45V

C_I2

C_I1

C_Q

1µF

100nF

47µF

Enable

Bandgap

Reference

Temperature

Shutdown

GND

e.g. Ignition

Figure 5

Application diagram

Note:

This is a very simplified example of an application circuit. The function must be verified in the real

application.

6.2

Selection of external components

6.2.1

Input pin

Figure 5 shows the typical input circuitry for a linear voltage regulator. A ceramic capacitor at the input, in the

range of 100 nF to 470 nF, is recommended to filter the high frequency disturbances imposed by the line, for

example ISO pulses 3a/b. This capacitor must be placed very close to the input pin of the linear voltage

regulator on the PCB.

An aluminum electrolytic capacitor in the range of 10 µF to 470 µF is recommended as an input buffer to damp

high energy pulses, such as ISO pulse 2a. This capacitor must be placed close to the input pin of the linear

voltage regulator.

An overvoltage suppressor diode can be used to further suppress any high voltage beyond the maximum

rating of the linear voltage regulator and to protect the device from damage due to overvoltage.

The external components at the input pin are optional, but they are recommended in case of possible external

disturbances.

6.2.2

Output pin

An output capacitor is mandatory for the stability of linear voltage regulators.

The requirement to the output capacitor is given in “Functional range” on Page 7.

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Application information

TLS850B0TBV33 is designed to be also stable with low ESR capacitors. According to the automotive

requirements, ceramic capacitors with X5R or X7R dielectrics are recommended.

The output capacitor should be placed as close as possible to the voltage regulator’s output pin and GND pin,

on the same side of the PCB as the regulator itself.

In case of input voltage transients or load current transients, the capacitance should be dimensioned in

accordance and verified in the real application that the output stability requirements are fulfilled.

6.3

Thermal considerations

the total power dissipation can be calculated from the known input voltage, the output voltage and the load

profile of the application:

P_D= (V_I- V_Q) × I_Q+ V_I× I_q

(6.1)

with

•

P_D: continuous power dissipation

V_I: input voltage

V_Q: output voltage

I_Q: output current

I_q: quiescent current

The maximum acceptable thermal resistance R_thJAis:

R_thJA,max= ( T_j,max- T_a) / P_D

(6.2)

with

•

_j,max: maximum allowed junction temperature

T_a: 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.

6.4

Reverse polarity protection

TLS850B0TBV33 is not protected against reverse polarity faults and must be protected by external

components against negative supply voltage. An external reverse polarity diode is necessary. The absolute

maximum ratings of the device as specified in “Absolute maximum ratings” on Page 6 must be maintained.

6.5

Further application information

For further information you may contact http://www.infineon.com/

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Package outlines

4.4

±0.2

±0.1

1.27

0...0.3

8.5 ¹⁾

0.05

2.4

0.1

0...0.15

4 x 1.7

±0.1

5 x 0.8

0.5 _±0.1

8° MAX.

0.25

A B

0.1 B

1) Typical

Metal surface min. X = 7.25, Y = 6.9

All metal surfaces tin plated, except area of cut.

PG-TO263-5

Figure 6

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).

For further information on alternative packages, please visit our website:

http://www.infineon.com/packages.

Dimensions in mm

Data Sheet

Rev. 1.00

2017-09-12

TLS850B0TBV33

Low dropout linear voltage regulator

Revision history

Revision Date

Changes

1.00

2017-09-12 Initial Version

Data Sheet

Rev. 1.00

2017-09-12

Please read the Important Notice and Warnings at the end of this document

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IMPORTANT NOTICE

The information given in this document shall in no For further information on technology, delivery terms

Edition 2017-09-12

Published by

Infineon Technologies AG

81726 Munich, Germany

event be regarded as a guarantee of conditions or and conditions and prices, please contact the nearest

characteristics ("Beschaffenheitsgarantie").

Infineon Technologies Office (www.infineon.com).

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.

WARNINGS

Due to technical requirements products may contain

dangerous substances. For information on the types

in question please contact your nearest Infineon

Technologies office.

Do you have a question about any

aspect of this document?

Email: erratum@infineon.com

Except as otherwise explicitly approved by Infineon

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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.

a written document signed by

TLS850B0TB V33 [INFINEON]

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