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LM4128 Datasheet Preview

LM4128 Datasheet

SOT-23 Precision Micropower Series Voltage Reference

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LM4128, LM4128Q
www.ti.com
SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
LM4128/LM4128Q SOT-23 Precision Micropower Series Voltage Reference
Check for Samples: LM4128, LM4128Q
FEATURES
1
2 Output Voltage Initial Accuracy 0.1%
• Low Temperature Coefficient 75 ppm/°C
• Low Supply Current, 60 µA
• Enable Pin Allowing a 3 µA Shutdown Mode
• Up to 20 mA Output Current
• Voltage Options 1.8V, 2.048V, 2.5V, 3.0V, 3.3V,
4.096V
• Custom Voltage Options Available (1.8V to
4.096V)
• VIN Range of VREF + 400 mV to 5.5V @10 mA
• Stable with Low ESR Ceramic Capacitors
• 5-Pin SOT-23 Package
40°C to 125°C Junction Temperature Range
• LM4128AQ/BQ/CQ/DQ are AEC-Q100 Grade 1
Qualified and are Manufactured on an
Automotive Grade Flow
APPLICATIONS
• Instrumentation & Process Control
• Test Equipment
• Data Acquisition Systems
• Base Stations
• Servo Systems
• Portable, Battery Powered Equipment
• Automotive & Industrial Electronics
• Precision Regulators
• Battery Chargers
• Communications
• Medical Equipment
DESCRIPTION
Ideal for space critical applications, the LM4128
precision voltage reference is available in the SOT-23
surface-mount package. The LM4128’s advanced
design eliminates the need for an external stabilizing
capacitor while ensuring stability with capacitive loads
up to 10 µF, thus making the LM4128 easy to use.
Series references provide lower power consumption
than shunt references, since they do not have to idle
the maximum possible load current under no load
conditions. This advantage, the low quiescent current
(60 µA), and the low dropout voltage (400 mV) make
the LM4128 ideal for battery-powered solutions.
The LM4128 is available in four grades (A, B, C, and
D) for greater flexibility. The best grade devices (A)
have an initial accuracy of 0.1% with ensured
temperature coefficient of 75 ppm/°C or less, while
the lowest grade parts (D) have an initial accuracy of
1.0% and a tempco of 100 ppm/°C.
Typical Application Circuit
Input
VIN
VREF
CIN*
LM4128
Output
COUT *
Enable
EN
GND
*Note: The capacitor CIN is required and
the capacitor COUT is optional.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2013, Texas Instruments Incorporated




etcTI

LM4128 Datasheet Preview

LM4128 Datasheet

SOT-23 Precision Micropower Series Voltage Reference

No Preview Available !

LM4128, LM4128Q
SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
Connection Diagram
N/C 1
GND 2
EN 3
5 VREF
4 VIN
5-Pin SOT-23 Package – Top View
See Package Number DBV (R-PDSO-G5)
www.ti.com
Pin #
1
2
3
4
5
Name
N/C
GND
EN
VIN
VREF
PIN DESCRIPTIONS
Function
No connect pin, leave floating
Ground
Enable pin
Input supply
Reference output
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings(1)
Maximum Voltage on any input
Output short circuit duration
Power Dissipation (TA = 25°C)(2)
Storage Temperature Range
Lead Temperature
ESD Susceptibility(3)
(soldering, 10sec)
Vapor Phase (60 sec)
Infrared (15sec)
Human Body Model
-0.3 to 6V
Indefinite
350 mW
65°C to 150°C
260°C
215°C
220°C
2 kV
(1) Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see Electrical
Characteristics.
(2) Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by TJMAX
(maximum junction temperature), θJ-A (junction to ambient thermal resistance) and TA (ambient temperature). The maximum power
dissipation at any temperature is: PDissMAX = (TJMAX - TA) /θJ-A up to the value listed in the Absolute Maximum Ratings. θJ-A for SOT-23
package is 220°C/W, TJMAX = 125°C.
(3) The human body model is a 100 pF capacitor discharged through a 1.5 kresistor into each pin.
Operating Ratings
Maximum Input Supply Voltage
Maximum Enable Input Voltage
Maximum Load Current
Junction Temperature Range (TJ)
5.5V
VIN
20mA
40°C to +125°C
2
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Copyright © 2006–2013, Texas Instruments Incorporated
Product Folder Links: LM4128 LM4128Q



Part Number LM4128
Description SOT-23 Precision Micropower Series Voltage Reference
Maker etcTI
Total Page 3 Pages
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LM4128 Datasheet PDF





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