IFX1963
1.5A Low Dropout Linear Voltage Regulator
IFX1963TBV
IFX1963TEV
Data Sheet
Rev. 1.0, 2013-02-25
Industrial Standard Power
IFX1963
Table of Contents
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
6
6.1
6.2
6.3
6.4
6.5
6.6
7
8
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Assignment IFX1963TBV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Definitions and Functions IFX1963TBV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Assignment IFX1963TEV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Definitions and Functions IFX1963TEV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Product Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6
6
7
7
8
8
9
9
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Characteristics Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Application Information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustable Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Capacitance and Transient Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overload Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
19
20
20
20
20
21
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Data Sheet
2
Rev. 1.0, 2013-02-25
1.5A Low Dropout Linear Voltage Regulator
IFX1963
1
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Overview
Adjustable Output Voltage
Output Voltage Tolerance at small loads of
±1.5
%
Output Current Capability up to 1.5 A
Very Low Dropout Voltage of 340 mV
Extended Operating Range Starting at 1.7 V
Low Noise of typ. 40 µV
RMS
(10 Hz to 100 kHz)
Small Output Capacitor for Stability 10 µF
Suitable for Ceramic Output Capacitors
Enable Functionality
Overtemperature Shutdown
Reverse Polarity Protection
Output Current Limitation
Wide Temperature Range From -40 °C up to 125 °C
Green Product (RoHS compliant)
PG-TO263-5
The
IFX1963
is not qualified and manufactured according to the
requirements of Infineon Technologies with regards to automotive and/or
transportation applications. For automotive applications please refer to
the Infineon voltage regulator TLF1963 or in general to Infineon TLx
(TLE, TLS, TLF.....) voltage regulator products.
Functional Description
PG-TO252-5
The IFX1963 is a low dropout voltage regulator available in PG-TO263-5 and PG-TO252-5 SMD package. The IC
regulates an input voltage
V
IN
in the range of 2.5 V <
V
IN
< 20 V to an adjustable output voltage of
1.21 V <
V
OUT,nom
<
V
IN
-
V
DR
. The device is capable to supply loads up to 1.5 A. The regulator can be enabled and
disabled via the Enable input. The integrated output current limitation and the overtemperature shutdown will
protect the device against failures like output short circuit to GND, overcurrent and overtemperature.
The IFX1963 provides the ideal solution for systems requiring several supply voltages. With its adjust feature the
regulator can provide all supply voltages between 1.21 V and the available input voltage, this offers a high flexibility
to the system designer.
Type
IFX1963TBV
IFX1963TEV
Data Sheet
Package
PG-TO263-5
PG-TO252-5
3
Marking
1963BV
1963EV
Rev. 1.0, 2013-02-25
IFX1963
Overview
Choosing External Components
The input capacitor
C
IN
is necessary for compensating line influences. The output capacitor
C
OUT
is necessary for
the stability of the regulating circuit. Stability is guaranteed at values specified in
“Functional Range” on Page 9
within the whole operating temperature range.
Data Sheet
4
Rev. 1.0, 2013-02-25
IFX1963
Block Diagram
2
Block Diagram
IFX1963 ADJ
IN
2
Reverse Current
Protection
4
OUT
EN
4
Bias
Over Current
Protection
Saturation
Control
Temperature
Protection
Voltage
reference
Error
Amplifier
5
ADJ
3
GND
Figure 1
Block Diagram
Data Sheet
5
Rev. 1.0, 2013-02-25
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