LM4128CMF-1.8/NOPB National Semiconductor, LM4128CMF-1.8/NOPB Datasheet

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LM4128CMF-1.8/NOPB

Manufacturer Part Number
LM4128CMF-1.8/NOPB
Description
IC REF MICROPWR 1.8V SOT23-5
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheet

Specifications of LM4128CMF-1.8/NOPB

Reference Type
Series
Voltage - Output
1.8V
Tolerance
±0.5%
Temperature Coefficient
100ppm/°C
Voltage - Input
2.2 ~ 5.5 V
Number Of Channels
1
Current - Quiescent
100µA
Current - Output
20mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Cathode
-
Other names
LM4128CMF-1.8TR
LM4128CMF-1.8TR
© 2008 National Semiconductor Corporation
LM4128/LM4128Q
SOT-23 Precision Micropower Series Voltage Reference
General 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 sta-
bility 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 advan-
tage, 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 guaranteed 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
*Note: The capacitor C
IN
is required and the capacitor C
202110
OUT
is optional.
Features
Applications
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)
V
Stable with low ESR ceramic capacitors
SOT23-5 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
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
IN
range of V
REF
+ 400 mV to 5.5V @10 mA
20211001
October 23, 2008
www.national.com

Related parts for LM4128CMF-1.8/NOPB

LM4128CMF-1.8/NOPB Summary of contents

Page 1

... Typical Application Circuit *Note: The capacitor C is required and the capacitor C IN © 2008 National Semiconductor Corporation Features ■ Output voltage initial accuracy 0.1% ■ Low temperature coefficient 75 ppm/°C ■ ...

Page 2

... LM4128BMF-1.8 LM4128BMFX-1.8 LM4128BMF-2.0 LM4128BMFX-2.0 LM4128BMF-2.5 LM4128BMFX-2.5 LM4128BMF-3.0 LM4128BMFX-3.0 LM4128BMF-3.3 LM4128BMFX-3.3 LM4128BMF-4.1 LM4128BMFX-4.1 LM4128CMF-1.8 LM4128CMFX-1.8 LM4128CMF-2.0 LM4128CMFX-2.0 LM4128CMF-2.5 LM4128CMFX-2.5 LM4128CMF-3.0 LM4128CMFX-3.0 LM4128CMF-3.3 LM4128CMFX-3.3 LM4128CMF-4.1 LM4128CMFX-4.1 LM4128DMF-1.8 LM4128DMFX-1.8 LM4128DMF-2.0 LM4128DMFX-2.0 LM4128DMF-2.5 LM4128DMFX-2.5 LM4128DMF-3.0 LM4128DMFX-3.0 LM4128DMF-3.3 LM4128DMFX-3.3 LM4128DMF-4.1 LM4128DMFX-4.1 2 Part Marking Feature R5AA R5BA ...

Page 3

Input Output Voltage LM4128 Supplied as Accuracy at 25°C And 1000 units, Tape and Temperature Coefficient LM4128AQ1MF1.8 LM4128AQ1MF2.0 LM4128AQ1MF2.5 0.1%, 75 ppm/°C (AQ grade) LM4128AQ1MF3.0 LM4128AQ1MF3.3 LM4128AQ1MF4.1 LM4128BQ1MF1.8 LM4128BQ1MF2.0 LM4128BQ1MF2.5 0.2%, 75 ppm/°C (BQ grade) LM4128BQ1MF3.0 LM4128BQ1MF3.3 LM4128BQ1MF4.1 LM4128CQ1MF1.8 LM4128CQ1MF2.0 ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Maximum Voltage on any input Output short circuit duration Power Dissipation (T = 25°C) A (Note 2) Storage Temperature Range   Lead Temperature (soldering, 10sec) Electrical Characteristics LM4128-1 ...

Page 5

Electrical Characteristics LM4128-2 2.048V) OUT over the junction temperature (T ) range of -40°C to +125°C unless otherwise specified. Minimum and Maximum limits are J guaranteed through test, design, or statistical correlation. Typical values represent the most likely ...

Page 6

Electrical Characteristics LM4128-2 2.5V) OUT the junction temperature (T ) range of -40°C to +125°C unless otherwise specified. Minimum and Maximum limits are guaranteed J through test, design, or statistical correlation. Typical values represent the most likely parametric ...

Page 7

Electrical Characteristics LM4128-3 3.0V) OUT the junction temperature (T ) range of -40°C to +125°C unless otherwise specified. Minimum and Maximum limits are guaranteed J through test, design, or statistical correlation. Typical values represent the most likely parametric ...

Page 8

Electrical Characteristics LM4128-3 3.3V) OUT the junction temperature (T ) range of -40°C to +125°C unless otherwise specified. Minimum and Maximum limits are guaranteed J through test, design, or statistical correlation. Typical values represent the most likely parametric ...

Page 9

Electrical Characteristics LM4128-4 4.096V) OUT over the junction temperature (T ) range of -40°C to +125°C unless otherwise specified. Minimum and Maximum limits are J guaranteed through test, design, or statistical correlation. Typical values represent the most likely ...

Page 10

Typical Performance Characteristics for 2.5V Output Voltage vs Temperature Line Regulation Output Voltage Noise Spectrum www.national.com Load Regulation 20211054 0 Noise 20211056 Power Supply Rejection Ratio vs Frequency 20211057 10 20211055 20211021 20211058 ...

Page 11

Dropout vs Load to 0.5% Accuracy 20211008 Supply Current vs Input Voltage 20211053 Ground Current vs Load Current 20211018 Typical Long Term Stability Shutdown I vs Input Voltage Q Line Transient Response 20211030 ...

Page 12

Load Transient Response 10mA LOAD Start-Up Response www.national.com Short-Circuit Protection and Recovery 20211050 20211083 12 20211082 ...

Page 13

Application Information THEORY OF OPERATION The foundation of any voltage reference is the band-gap cir- cuit. While the reference in the LM4128 is developed from the gate-source voltage of transistors in the IC, principles of the band-gap circuit are easily ...

Page 14

T = Temperature drift Nominal preset output voltage REF V = Minimum output voltage over operating REF_MIN temperature range V = Maximum output voltage over operating REF_MAX temperature range ΔT = Operating temperature range. The LM4128 features ...

Page 15

Typical Application Circuits FIGURE 3. Voltage Reference with Complimentary Output FIGURE 4. Precision Voltage Reference with Force and Sense Output FIGURE 5. Programmable Current Source 15 20211026 20211027 20211028 www.national.com ...

Page 16

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted SOT23-5 Package NS Package Number MF05A 16 ...

Page 17

Notes 17 www.national.com ...

Page 18

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