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LM4120のメーカーはNational Semiconductorです、この部品の機能は「Precision Micropower Low Dropout Voltage Reference」です。 |
部品番号 | LM4120 |
| |
部品説明 | Precision Micropower Low Dropout Voltage Reference | ||
メーカ | National Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとLM4120ダウンロード(pdfファイル)リンクがあります。 Total 11 pages
February 2000
LM4120
Precision Micropower Low Dropout Voltage Reference
General Description
The LM4120 is a precision low power low dropout bandgap
voltage reference with up to 5 mA output current source and
sink capability.
This series reference operates with input voltages as low as
2V and up to 12V consuming 160 µA (Typ.) supply current. In
power down mode, device current drops to less than 2 µA.
The LM4120 comes in two grades (A and Standard) and
seven voltage options for greater flexibility. The best grade
devices (A) have an initial accuracy of 0.2%, while the stan-
dard have an initial accuracy of 0.5%, both with a tempco of
50ppm/˚C guaranteed from −40˚C to +125˚C.
The very low dropout voltage, low supply current and
power-down capability of the LM4120 makes this product an
ideal choice for battery powered and portable applications.
The device performance is guaranteed over the industrial
temperature range (−40˚C to +85˚C), while certain specs are
guaranteed over the extended temperature range (−40˚C to
+125˚C). Please contact National for full specifications over
the extended temperature range. The LM4120 is available in
a standard 5-pin SOT-23 package.
Features
n Small SOT23-5 package
n Low dropout voltage:
120 mV Typ @ 1 mA
n High output voltage accuracy:
0.2%
n Source and Sink current output:
±5 mA
n Supply current:
160 µA Typ.
n Low Temperature Coefficient:
50 ppm/˚C
n Enable pin
n Fixed output voltages: 1.8, 2.048, 2.5, 3.0, 3.3, 4.096
and 5.0V
n Industrial temperature Range:
−40˚C to +85˚C
n (For extended temperature range, −40˚C to 125˚C,
contact National Semiconductor)
Applications
n Portable, battery powered equipment
n Instrumentation and process control
n Automotive & Industrial
n Test equipment
n Data acquisition systems
n Precision regulators
n Battery chargers
n Base stations
n Communications
n Medical equipment
Functional Block Diagram
Connection Diagram
DS101047-2
Refer to the Ordering Information Table in this Data Sheet for Specific
Part Number
SOT23-5 Surface Mount Package
DS101047-1
© 2000 National Semiconductor Corporation DS101047
www.national.com
1 Page Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Voltage on input or
enable pins
−0.3V to 14V
Output Short-Circuit Duration
Indefinite
Power Dissipation (TA = 25˚C) (Note 2):
MA05B package − θJA
Power Dissipation
280˚C/W
350 mW
ESD Susceptibility (Note 3)
Human Body Model
Machine Model
2 kV
200V
Lead Temperature:
Soldering, (10 sec.)
Vapor Phase (60 sec.)
Infrared (15 sec.)
+260˚C
+215˚C
+220˚C
Operating Range (Note 1)
Storage Temperature Range
Ambient Temperature Range
Junction Temperature Range
−65˚C to +150˚C
−40˚C to +85˚C
−40˚C to +125˚C
Electrical Characteristics
LM4120-1.8V, 2.048V and 2.5V Unless otherwise specified VIN = 3.3V, ILOAD = 0, COUT = 0.01µF, TA = Tj
= 25˚C. Limits with standard typeface are for Tj = 25˚C, and limits in boldface type apply over the −40˚C ≤ TA ≤ +85˚C tem-
perature range.
Symbol
VOUT
TCVOUT/˚C
∆VOUT/∆VIN
∆VOUT/∆ILOAD
VIN−VOUT
VN
IS
ISS
VH
VL
IH
Parameter
Output Voltage Initial
Accuracy
LM4120A-1.800
LM4120A-2.048
LM4120A-2.500
LM4120-1.800
LM4120-2.048
LM4120-2.500
Temperature Coefficient
Line Regulation
Load Regulation
Dropout Voltage (Note 6)
Output Noise Voltage (Note 8)
Supply Current
Power-down Supply Current
Logic High Input Voltage
Logic Low Input Voltage
Logic High Input Current
Conditions
−40˚C ≤ TA ≤ +125˚C
3.3V ≤ VIN ≤ 12V
0 mA ≤ ILOAD ≤ 1 mA
1 mA ≤ ILOAD ≤ 5 mA
−1 mA ≤ ILOAD ≤ 0 mA
−5 mA ≤ ILOAD ≤ −1 mA
ILOAD = 0 mA
ILOAD = +1 mA
ILOAD = +5 mA
0.1 Hz to 10 Hz
10 Hz to 10 kHz
Enable = 0.4V
−40˚C ≤ TJ ≤ +85˚C
Enable = 0.2V
Min (Note 5)
2.4
Typ (Note 4)
14
0.0007
0.03
0.01
0.04
0.01
45
120
180
20
36
160
2.4
0.4
7
Max (Note 5)
±0.2
±0.5
50
0.008
0.01
0.08
0.17
0.04
0.1
0.12
65
80
150
180
210
250
250
275
1
2
0.2
15
Units
%
%
ppm/˚c
%/V
%/mA
mV
µVPP
µVPP
µA
µA
V
V
µA
3 www.national.com
3Pages LM4120 Typical Operating Characteristics Unless otherwise specified, VIN = 3.3V, VOUT = 2.5V,
ILOAD = 0, COUT = 0.022µF, TA = 25˚C and VEN = VIN. (Continued)
Dropout Voltage vs Output Error
Dropout Voltage vs Load Current
Line Regulation
Load Regulation
DS101047-15
GND Pin Current
DS101047-33
DS101047-17
GND Pin Current at No Load
vs Temperature
DS101047-18
GND Pin Current vs Load
DS101047-19
0.1Hz to 10Hz output Noise
DS101047-21
Output Impedance vs Frequency
DS101047-22
DS101047-23
DS101047-24
www.national.com
6
6 Page | |||
ページ | 合計 : 11 ページ | ||
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PDF ダウンロード | [ LM4120 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
LM4120 | Precision Micropower Low Dropout Voltage Reference | National Semiconductor |
LM4120 | Precision Micropower Low Dropout Voltage Reference (Rev. F) | Texas Instruments |
LM4121 | Precision Micropower Low Dropout Voltage Reference | National Semiconductor |
LM4121 | LM4121 Precision Micropower Low Dropout Voltage Reference (Rev. C) | Texas Instruments |