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