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LTC1258CS8-3#PBF

P1-P3P4-P6P7-P8
LTC1258 Series
1
1258sfb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Micropower Low
Dropout References
The LTC
®
1258/LTC1258-2.5/LTC1258-3/LTC1258-4.1/
LTC1258-5 are micropower bandgap references that
combine high accuracy and low drift with very low sup-
ply current and small package size. The combination of
ultralow quiescent current and low dropout voltage of only
200mV maximum makes them ideal for battery-powered
equipment. The output voltage is set by an external resistor
divider for the adjustable LTC1258.
This series of references uses curvature compensation to
obtain low temperature coeffi cient and trimmed thin-fi lm
resistors to achieve high output accuracy. These references
can source up to 10mA and sink up to 2mA, making them
ideal for precision regulator applications. They are stable
without an output bypass capacitor, but are also stable
with capacitance up to 1μF. This feature is important in
critical applications where PC board space is a premium
and fast settling is demanded.
The LTC1258 series references provide power dissipation
advantages over shunt references. In addition to supply
current, shunt references must also idle the entire load
current to operate.
The LTC1258 series is available in the 8-pin MSOP and
SO packages.
2.5V Battery-Powered Reference
n
200mV Max Dropout at 10mA Output Current
n
4μA Typical Quiescent Current
n
0.15% Max Initial Accuracy (S8)
n
No Output Capacitor Required
n
Output Sources 10mA, Sinks 2mA
n
40ppm/°C Max Drift (S8)
n
Voltage Options: 2.5V, 3V, 4.1V, 5V and Adjustable
n
Available in Small MSOP Package
n
Battery-Powered Systems
n
Handheld Instruments
n
Precision Power Supplies
n
A/D and D/A Converters
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
LTC1258-2.5 Temperature Drift
TEMPERATURE (°C)
–40 –20 0 20 40 60 80 100
REFERENCE VOLTAGE CHANGE (mV)
1258 TA02
4
3
2
1
–2
–1
–3
–4
0
LTC1258-2.5
OUT
IN
GND
4
2
2.7V
TO 12.6V
1
2.5V
1258 TA01
0.1μF
LTC1258 Series
2
1258sfb
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ..........................................................13V
Input Voltages ............................................ –0.3V to 13V
Output Voltages ......................................... –0.3V to 13V
Output Short-Circuit Duration .......................... Indefi nite
(Note 1)
1
2
3
4
OUT
IN
**DNC/FB
GND
8
7
6
5
DNC*
DNC*
DNC*
DNC*
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 250°C/W
*CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS
**DNC FOR LTC1258-2.5/LTC1258-3/LTC1258-4.1/LTC1258-5, FB FOR LTC1258
1
2
3
4
8
7
6
5
TOP VIEW
DNC*
DNC*
DNC*
DNC*
OUT
IN
**DNC/FB
GND
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 125°C, θ
JA
= 190°C/W
*CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS
**DNC FOR LTC1258-2.5/LTC1258-3/LTC1258-4.1/LTC1258-5, FB FOR LTC1258
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1258CMS8#PBF (OBSOLETE) LTC1258CMS8#TRPBF LTEL 8-Lead Plastic MSOP 0°C to 70°C
LTC1258CMS8-2.5#PBF LTC1258CMS8-2.5#TRPBF LTCF 8-Lead Plastic MSOP 0°C to 70°C
LTC1258CMS8-3#PBF LTC1258CMS8-3#TRPBF LTEU 8-Lead Plastic MSOP 0°C to 70°C
LTC1258CMS8-4.1#PBF LTC1258CMS8-4.1#TRPBF LTEN 8-Lead Plastic MSOP 0°C to 70°C
LTC1258CMS8-5#PBF LTC1258CMS8-5#TRPBF LTEM 8-Lead Plastic MSOP 0°C to 70°C
LTC1258CS8#PBF (OBSOLETE) LTC1258CS8#TRPBF 1258 8-Lead Plastic SO 0°C to 70°C
LTC1258CS8-2.5#PBF LTC1258CS8-2.5#TRPBF 12582 8-Lead Plastic SO 0°C to 70°C
LTC1258CS8-3#PBF LTC1258CS8-3#TRPBF 12583 8-Lead Plastic SO 0°C to 70°C
LTC1258CS8-4.1#PBF LTC1258CS8-4.1#TRPBF 125841 8-Lead Plastic SO 0°C to 70°C
LTC1258CS8-5#PBF LTC1258CS8-5#TRPBF 12585 8-Lead Plastic SO 0°C to 70°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
Operating Temperature Range (Note 2).. –40°C to 100°C
Specifi ed Temperature Range ..................... 0°C to 70°C
Storage Temperature Range (Note 3) ..... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
LTC1258 Series
3
1258sfb
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input Voltage Range
l
12.6 V
I
IN
Input Current FB = OUT for LTC1258
l
4 6.5
8.5
μA
μA
V
OUT
Output Voltage (Note 4) LTC1258 (S8), FB = OUT
LTC1258-2.5 (S8)
LTC1258-3 (S8)
LTC1258-4.1 (S8)
LTC1258-5 (S8)
LTC1258 (MS8), FB = OUT
LTC1258-2.5 (MS8)
LTC1258-3 (MS8)
LTC1258-4.1 (MS8)
LTC1258-5 (MS8)
2.3755
2.4963
2.9955
4.090
4.9925
2.374
2.4948
2.994
4.0885
4.991
2.385
2.5
3
4.096
5
2.385
2.5
3
4.096
5
2.3945
2.5037
3.0045
4.102
5.0075
2.396
2.5052
3.006
4.1035
5.009
V
V
V
V
V
V
V
V
V
V
e
n
Output Voltage Noise (Note 5) 0.1Hz ≤ f ≤ 10Hz 8 ppm
P-P
TC Output Voltage Temp Coeffi cient (Note 6) T
MIN
≤ T
J
≤ T
MAX
(S8)
T
MIN
≤ T
J
≤ T
MAX
(MS8)
l
l
15 40
60
ppm/°C
ppm/°C
V
OUT
/V
IN
Line Regulation V
IN
= (V
OUT(NOMINAL)
+ 0.2V) to 12.6V
l
30 120 ppm/V
V
OUT
/I
OUT
Load Regulation (Note 7) Sourcing 0mA to 10mA
l
0.1 0.3 mV/mA
Sinking 0mA to 2mA
l
1.75 4.0
6.5
mV/mA
mV/mA
I
SC
Short-Circuit Output Current V
OUT
Shorted to GND
V
OUT
Shorted to V
IN
20
2
40
4
mA
mA
ΔV
DO
Dropout Voltage (Note 8)
I
OUT
= 0, ΔV
OUT
≤ 0.1%
I
OUT
= 10mA, ΔV
OUT
≤ 0.1%
l
l
100
200
mV
mV
V
HYST
Output Hysteresis (Note 9)
ΔT = –40°C to 85°C
ΔT = 0°C to 70°C
200
50
ppm
ppm
I
FB
FB Pin Input Current LTC1258, OUT = FB 10 nA
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= V
OUT(NOMINAL)
+ 0.2V, I
OUT
= 0mA, FB = OUT for the LTC1258 unless
otherwise noted.
OUTPUT
VOLTAGE
(V)
TEMPERATURE
RANGE
(°C)
ACCURACY
(%)
TEMPERATURE
COEFFICENT
(ppm/°C)
PACKAGE TYPE
SO-8 (S8) MSOP-8 (MS8)
ORDER NUMBER PART MARKING ORDER NUMBER PART MARKING
2.5
2.5
0 to 70
0 to 70
0.15
0.21
40
60
LTC1258CS8-2.5 12582
LTC1258CMS8-2.5 LTCF
3
3
0 to 70
0 to 70
0.15
0.20
40
60
LTC1258CS8-3 12583
LTC1258CMS8-3 LTEU
4.096
4.096
0 to 70
0 to 70
0.15
0.18
40
60
LTC1258CS8-4.1 125841
LTC1258CMS8-4.1 LTEN
5
5
0 to 70
0 to 70
0.15
0.18
40
60
LTC1258CS8-5 12585
LTC1258CMS8-5 LTEM
OBSOLETE
Adjustable
Adjustable
0 to 70
0 to 70
0.4
0.46
40
60
LTC1258CS8 1258
LTC1258CMS8 LTEL
AVAILABLE OPTIONS
Note 2: The LTC1258 is guaranteed functional over the operating
temperature range of –40°C to 100°C.
Note 3: If the part is stored outside of the specifi ed operating temperature
range, the output may shift due to hysteresis.
P1-P3P4-P6P7-P8

LTC1258CS8-3#PBF

Mfr. #:
Buy LTC1258CS8-3#PBF
Manufacturer:
Analog Devices Inc.
Description:
Voltage References Micropower Low Dropout 3V Reference
Lifecycle:
New from this manufacturer.
Delivery:
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