Infineon IFX2931GV50 Low dropout linear voltage regulator Datasheet

IFX2931
Low Dropout Linear Voltage Regulator
IFX2931GV50
IFX2931GV33
Data Sheet
Rev. 1.13, 2011-02-10
Standard Power
Low Dropout Linear Voltage Regulator
1
IFX2931
Overview
Features
•
•
•
•
•
•
•
•
•
Very Low Quiescent Current
Output Current in Excess of 100mA
Input-Output Differential Less than 0.6V for 5V-Version
Reverse Battery Protection
Output Current Limitation
Overtemperature Shutdown
Mirror-Image Insertion Protection
Needs only small Output Capacitor COUT = 10 µF
Green Product (RoHS compliant)
PG-DSO-8
For automotive and transportation applications, please refer to the Infineon TLE and TLF voltage regulator series.
General Description
The IFX2931 is a positive voltage regulator with a very low quiescent current of 1mA or less when supplying 10mA
loads. The IFX2931GV50 also offers an extremely low dropout voltage required for proper regulation: 0.2V for
output currents of 10mA. Therefore the IFX2931 is the ideal supply for standby power systems. It is suitable for
e.g. memory standby circuits, CMOS and other low power processor power supplies. It certainly can also be used
for any system demanding as much as 100mA of output current. The IFX2931 is protected from reverse polarity
condition and can withstand input voltages of 28 V continously. The IFX2931 cannot be harmed by temporary
mirror-image insertion. Additional protection features such as output current limitation and overtemperature
shutdown are also implemented. The IFX2931 comes in an 8-lead SMD package (PG-DSO-8).
Type
Package
Marking
IFX2931GV50
PG-DSO-8
IFX2931
IFX2931GV33
PG-DSO-8
2931V33
Data Sheet
2
Rev. 1.13, 2011-02-10
IFX2931
Block Diagram
2
Block Diagram
Saturation
Control and
Protection
Circuit
Temperature
Sensor
Input
8
1
Control
Amplifier
Adjustment
Output
Buffer
Bandgap
Reference
2,3,6,7
GND
AEB01527
Figure 1
Data Sheet
Block Diagram
3
Rev. 1.13, 2011-02-10
IFX2931
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
PG-DSO-8
OUT
GND
GND
n.c.
1
2
3
4
8
IN
7
6
5
GND
GND
n.c.
PINCONFIG_DSO-8.VSD
Figure 2
Pin Configuration
3.2
Pin Definitions and Functions IFX2931GV50, IFX2931GV33 (PG-DSO-8)
Pin
Symbol
Function
1
OUT
Output
block to GND with a capacitor close to the IC terminals, respecting the values given
for its capacitance COUT and ESR in “Typical Performance Characteristics” on
Page 9
2,3,6,7
GND
Ground
4,5
n.c.
not connected
8
IN
Input
for compensating line influences, a capacitor to GND close to the IC terminals is
recommended
Data Sheet
4
Rev. 1.13, 2011-02-10
IFX2931
General Product Characteristics
4
General Product Characteristics
4.1
Absolute Maximum Ratings
Absolute Maximum Ratings 1)
Tj = -40 C to 125 C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Min.
Max.
Unit
Conditions
Input
4.1.1
Voltage
VI
-30
28
V
–
Voltage
VOUT
-0.3
28
V
–
Tj
Tstg
-40
125
C
–
-55
150
C
–
VESD
-2
2
kV
HBM2)
Output
4.1.2
Temperatures
4.1.3
Junction Temperature
4.1.4
Storage Temperature
ESD Susceptibility
4.1.5
ESD Resistivity to GND
1) Not subject to production test, specified by design.
2) ESD susceptibility, HBM according to EIA/JESD 22-A114B
Note: 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.
Note: 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.
4.2
Pos.
4.2.1
Functional Range
Parameter
Input Voltage
Symbol
VI
4.2.2
4.2.3
Junction Temperature
Tj
Limit Values
Unit
Conditions
Min.
Max.
6
28
V
IFX2931GV50
4.4
26
V
IFX2931GV33
-40
125
C
–
Note: Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics table.
Data Sheet
5
Rev. 1.13, 2011-02-10
IFX2931
General Product Characteristics
4.3
Pos.
Thermal Resistance
Parameter
Symbol
Limit Values
Min.
Typ.
Max.
Unit
Conditions
IFX2931GV50, IFX2931GV33 (PG-DSO-8)
4.3.1
Junction to Soldering Point1)
RthJSP
–
39
–
K/W
measured to group
of pins 2, 3, 6, 7
4.3.2
Junction to Ambient1)
RthJA
–
96
–
K/W
Footprint only2)
4.3.3
–
67
–
K/W
300mm2 heatsink
area on PCB2)
4.3.4
–
66
–
K/W
600mm2 heatsink
area on PCB2)
1) not subject to production test, specified by design
2) Specified RthJA value is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The Product
(Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu).
Data Sheet
6
Rev. 1.13, 2011-02-10
IFX2931
Electrical Characteristics
5
Electrical Characteristics
5.1
Electrical Characteristics IFX2931GV50
Electrical Characteristics
VI = 14 V, Tj = -40 C to 125 C, IOUT = 10 mA, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos.
Parameter
Symbol
5.1.1
Output Voltage
VOUT
5.1.2
Line Regulation
VOUT,line
Load Regulation
1)
Min.
Typ.
Max.
4.75
5
5.25
Unit
Conditions
V
Tj = 25 °C
4.5
5
5.5
V
–
–
2
10
mV
9 V < VI < 16 V
–
4
30
mV
6 V < VI < 26 V
VOUT,load
–
-14
-50
mV
5 mA < IOUT < 100 mA
ZOUT
–
200
–
m
IOUT = 100 mADC and
IOUT = 10 mArms
–
0.4
1
mA
–
9
15
mA
–
500
–
µVrms
5.1.3
5.1.4
Limit Values
5.1.5
Output Impedance
5.1.6
Current Consumption
Iq
5.1.8
Output Noise Voltage1)
Vnoise
5.1.9
Long Term Stability1)
VOUT,1000h –
20
–
mV
–
/1000h
5.1.10
Ripple Rejection1)
80
–
dB
fripple = 120 Hz
5.1.11
PSRR
VDR
–
2)
–
0.05
0.2
V
–
0.3
0.6
V
IOUT = 10 mA
IOUT = 100 mA
100 Hz - 10 kHz
5.1.7
5.1.12
Dropout Voltage
VI - VOUT
IOUT = 10 mA
6 V < VI < 26 V
IOUT = 100 mA
100 Hz - 10 kHz
COUT = 100 µF
1) not subject to production test, specified by design
2) obtained when the output voltage has dropped 100mV below the nominal value
Data Sheet
7
Rev. 1.13, 2011-02-10
IFX2931
Electrical Characteristics
5.2
Electrical Characteristics IFX2931GV33
Electrical Characteristics
VI = 14 V, Tj = -40 C to 125 C, IOUT = 10 mA, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos.
Parameter
Symbol
5.2.1
Output Voltage
VOUT
Limit Values
Unit
Conditions
Tj = 25 °C
4.4 V < VI < 26 V
IOUT = 100 mA
4.4 V < VI < 26 V
Tj = 25 °C
5 mA < IOUT < 100 mA
Tj = 25 °C
IOUT = 100 mADC and
IOUT = 10 mArms
Min.
Typ.
Max.
3.135
3.3
3.465
V
2.97
3.3
3.63
V
5.2.2
Line Regulation
VOUT,line
–
4
33
mV
5.2.3
Load Regulation
VOUT,load
–
-10
-50
mV
5.2.4
Output Impedance1)
ZOUT
–
200
–
m
100 Hz - 10 kHz
5.2.5
Iq
Current Consumption
5.2.6
1)
Vnoise
–
0.4
1
mA
IOUT = 10 mA
4.4 V < VI < 26 V
–
15
–
mA
IOUT = 100 mA
–
330
–
µVrms
10 Hz - 100 kHz
COUT = 100 µF
5.2.7
Output Noise Voltage
5.2.8
Long Term Stability1)
VOUT,1000h –
13
–
mV
–
/1000h
5.2.9
Ripple Rejection1)
PSRR
VDR
–
80
–
dB
fripple = 120 Hz
–
0.85
1.1
V
IOUT = 100 mA,
Tj = 25 °C
5.2.10
Dropout Voltage
VI - VOUT
2)
1) not subject to production test, specified by design
2) obtained when the output voltage has dropped 100mV below the nominal value
Data Sheet
8
Rev. 1.13, 2011-02-10
IFX2931
Electrical Characteristics
5.3
Typical Performance Characteristics
Dropout Voltage VDR versus
Output Current IOUT
IFX2931GV50: Output Voltage VOUT versus
Input Voltage VI
AED01978
800
V DR mV
700
AED01984
6
VQ
V
R L = 50 Ω
5
600
4
500
Tj = 125 C
400
3
300
2
200
Tj = 25 C
1
100
0
25
50
75
100
125
mA
0
175
0
2
4
6
ΙQ
Load Transient Response
V OUT [mV]
40
IQ
=
mA
50
C OUT = 100 µF
ESR(C OUT) = 0.4 
0
-20
-40
-60
1,5
0
160
140
120
100
80
60
40
20
0
-80
 OUT
1,0
0
0,5
0
0
2
4
6
8
1
0
-10 0
10 20 30 40 50 60 70 80 90
t [µs]
V I [V]
Data Sheet
20
2,0
0
[mA]
VQ [V]
2,5
0
0,0
0
LOADTRANSIENTRESPONSE.VSD
60
V33_IQ_VI.VSD
3,0
0
V 10
VΙ
IFX2931GV33: Output Voltage VOUT versus
Input Voltage VI
3,5
0
8
9
Rev. 1.13, 2011-02-10
IFX2931
Electrical Characteristics
IFX2931GV50: Output Voltage VOUT versus
Junction Temperature Tj
IFX2931GV33: Output Voltage VOUT versus
Junction Temperature Tj
AED01982
5.20
V33_VQ_TJ.VSD
3,50
V
VQ
3,40
5.10
V I = 14 V
Vi = 13.5 V
3,30
V Q [V]
5.00
4.90
3,20
3,10
4.80
3,00
4.70
2,90
4.60
-40
0
40
80
-40
120 C 160
Tj
Output Current IOUT versus
Input Voltage VI
10
60
110
160
T j [°C]
Current Consumption Iq versus
Low Output Current IOUT
AED01983
200
AED01981
3.0
Ι Q mA
Ι q mA
2.5
150
2.0
Tj = 25 C
100
1.5
Tj = 125 C
1.0
Vi = 13.5 V
50
0.5
0
0
10
20
30
0
40 V 50
VΙ
Data Sheet
10
0
5
10
15
20
30
mA
ΙQ
Rev. 1.13, 2011-02-10
IFX2931
Electrical Characteristics
Current Consumption Iq versus
Output Current IOUT
Current Consumption Iq versus
Input Voltage VI
AED01980
12
IQ_VI.VSD
12
Ι q mA
10
10
R
I q [mA]
Vi = 13.5 V
6
6
4
4
R
L
= 100 
2
2
0
0
50
100
mA
0
150
ΙQ
Data Sheet
= 50 
8
8
0
L
10
20
30
40
V I [V]
11
Rev. 1.13, 2011-02-10
IFX2931
Electrical Characteristics
Power Supply Ripple Rejection PSRR versus
Frequency f
90,00
IFX2931GV50: Output Capacitor’s Equivalent
Series Resistance ESR(COUT) versus Output
Current IOUT
ESR_IOUT.VSD
10,00
PSRR_F.VSD
9,00
80,00
Unstable
Region
I OUT = 1 mA
8,00
70,00
C OUT = 10 µF
I OUT = 10 mA
) []
OUT
50,00
ESR(C
PSRR [dB]
60,00
7,00
I OUT = 100 mA
40,00
30,00
6,00
5,00
Stable Region
4,00
3,00
C OUT = 10 µF
ESR(C OUT ) = 0,02 
20,00
2,00
10,00
1,00
0,00
0,01
0,00
0,1
1
10
0
100
20
40
60
80
100
I OUT [mA]
f [kHz]
IFX2931GV33: Output Capacitor’s Equivalent
Series Resistance ESR(COUT) versus Output
Current IOUT
V33_ESR_IOUT.VSD
10,00
9,00
Unstable
Region
8,00
ESR(C
OUT
) [ ]
7,00
6,00
5,00
C OUT = 10 µF
4,00
3,00
Stable Region
2,00
1,00
0,00
0
20
40
60
80
100
I OUT [mA]
Data Sheet
12
Rev. 1.13, 2011-02-10
IFX2931
Package Outlines
6
Package Outlines
0.1
2)
0.41+0.1
-0.06
0.2
8
5
1
4
5 -0.2 1)
M
B
0.19 +0.06
C
8 MAX.
1.27
4 -0.21)
1.75 MAX.
0.175 ±0.07
(1.45)
0.35 x 45˚
0.64 ±0.25
6 ±0.2
A B 8x
0.2
M
C 8x
A
Index Marking
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Lead width can be 0.61 max. in dambar area
GPS01181
Figure 3
PG-DSO-8
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.
Data Sheet
13
Dimensions in mm
Rev. 1.13, 2011-02-10
IFX2931
Revision History
7
Revision History
Revision
Date
Changes
1.13
2011-02-10
Editorial change on page 9 (Typo)
1.12
2010-02-23
Editorial change
1.11
2009-10-19
Coverpage changed
Overview page: Inserted reference statement to TLE/TLF series.
1.1
2009-05-04
Version with 3.3V output voltage and all related description added
Form Page 2 on on top right “IFX2931GV50” updated to “IFX2931”
In “Features” on Page 2 “Input-Output Differential Less than 0.6V” updated to
“Input-Output Differential Less than 0.6V for 5V-Version”
In “General Description” on Page 2, all “IFX2931GV50” replaced by “IFX2931”;
in line 2, “It” replaced by “The IFX2931GV50”;
In “Pin Configuration” on Page 4 “, IFX2931GV33” added
In “Functional Range” on Page 5 Item 4.2.2 added, in Item 4.2.1’s Condition
“IFX2931GV50” added
In Table 4.3 “Thermal Resistance” on Page 6 “, IFX2931GV33” added
“Electrical Characteristics IFX2931GV50” on Page 7 updated: “IFX2931GV50”
added in this heading
Table 5.2 “Electrical Characteristics IFX2931GV33” on Page 8 added
In “Typical Performance Characteristics” on Page 9 performance
characteristics “IFX2931GV33: Output Voltage VOUT versus Input Voltage VI”
on Page 9, “IFX2931GV33: Output Voltage VOUT versus Junction
Temperature Tj” on Page 10 and “IFX2931GV33: Output Capacitor’s
Equivalent Series Resistance ESR(COUT) versus Output Current IOUT” on
Page 12 added; “IFX2931GV50” added in description of performance
characteristics “IFX2931GV50: Output Voltage VOUT versus Input Voltage VI”
on Page 9, “IFX2931GV50: Output Voltage VOUT versus Junction
Temperature Tj” on Page 10 and “IFX2931GV50: Output Capacitor’s
Equivalent Series Resistance ESR(COUT) versus Output Current IOUT” on
Page 12
1.0
Data Sheet
2008-04-21
final version data sheet
14
Rev. 1.13, 2011-02-10
Edition 2011-02-10
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2011 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, 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.
Information
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, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
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approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
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