Allicdata Part #: | 497-6706-ND |
Manufacturer Part#: |
LM138K |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | STMicroelectronics |
Short Description: | IC REG LINEAR POS ADJ 5A TO3 |
More Detail: | Linear Voltage Regulator IC Positive Adjustable 1 ... |
DataSheet: | LM138K Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Specifications
Series: | -- |
Packaging: | Tray |
Part Status: | Obsolete |
Output Configuration: | Positive |
Output Type: | Adjustable |
Number of Regulators: | 1 |
Voltage - Input (Max): | 35V |
Voltage - Output (Min/Fixed): | 1.2V |
Voltage - Output (Max): | 32V |
Voltage Dropout (Max): | -- |
Current - Output: | 5A |
PSRR: | 75dB ~ 60dB (120Hz) |
Control Features: | -- |
Protection Features: | Over Current, Over Temperature |
Operating Temperature: | -55°C ~ 150°C |
Mounting Type: | Through Hole |
Package / Case: | TO-204AA, TO-3 |
Supplier Device Package: | TO-3 |
Base Part Number: | LM138 |
Description
Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us: sales@allicdata.com
.LM138K Application Field and Working Principle
Introduction to the LM138K
The LM138K is a wide supply range series consisting of three adjustable voltage regulators. The outputs can be set anywhere between -2V to -20V with just two resistors. It is available in a standard 8-pin package with an input voltage range of -10V to -37V. This device features internal current limiting and thermal shutdown protection which makes it an ideal choice for many applications. Additionally, the output voltage is trimmed by 0.5V at +25°C.Features of the LM138K
The LM138K offers excellent supply regulation and low output noise over a wide range of line and load variations. This device also offers excellent temperature stability, with the trim point temperature shifting less than 0.1 mV/°C across the temperature range of 0°C to +125°C. The LM138K is also very easy to use, requiring just two resistors to set the output voltage. The device is available in the common 8-pin package and is soldered easily onto circuit boards.Applications of the LM138K
The LM138K is suitable for a wide range of applications, including:- Negative power supply regulation
- Battery-operated systems
- Portable instrumentation
- Personal Computer (PC) peripherals
- Automotive and audio applications
Working Principle of the LM138K
The LM138K is a three-terminal adjustable voltage regulator. It uses a combination ofpass transistors, reference, error amplifiers and current limiter. The input voltage is compared to a reference voltage and the output voltage is adjusted by a series of feedback loops and control circuits to maintain the desired output voltage.The error amplifier compares the output voltage to the reference voltage and the current limit circuit senses output current supplied by the pass transistor. The reference voltage is set by a series resistor and the output voltage is adjusted using the two feedback resistors.Conclusion
The LM138K is a versatile negative voltage regulator which can be used to meet the requirements of applications that require adjustable and highly regulated -20V output. The device offers improved power supply regulation against line and load changes and has a lower noise output than standard three-terminal regulators. The LM138K is ideal for battery-operated systems, portable instrumentation, PC peripherals, and automotive and audio applications.The specific data is subject to PDF, and the above content is for reference
Related Products
Search Part number : "LM13" Included word is 40
Part Number | Manufacturer | Price | Quantity | Description |
---|
LM139D | Texas Instru... | -- | 567 | IC QUAD DIFF COMPARATOR 1... |
LM139AD | Texas Instru... | -- | 449 | IC QUAD DIFF COMPARATOR 1... |
LM139DG4 | Texas Instru... | 1.11 $ | 2186 | IC QUAD DIFF COMPARATOR 1... |
LM139DT | STMicroelect... | 0.19 $ | 30000 | IC COMP QUAD LOW PWR SO-1... |
LM136H-5.0 | Texas Instru... | -- | 820 | IC VREF SHUNT 5V TO46-3Sh... |
LM139ADR | Texas Instru... | -- | 31187 | IC VOLTAGE COMPARATR QUAD... |
LM139ADRG4 | Texas Instru... | -- | 2500 | IC QUAD DIFF COMPARATOR 1... |
LM139DR | Texas Instru... | -- | 2500 | IC QUAD DIFF COMPARATOR 1... |
LM139J/PB | Texas Instru... | 7.96 $ | 3542 | IC COMP QUAD LPWR L OFF V... |
LM139AJ/PB | Texas Instru... | 7.96 $ | 1813 | IC COMP HIGH PERF QUAD 14... |
LM136H-2.5/NOPB | Texas Instru... | -- | 1008 | IC VREF SHUNT 2.49V TO46-... |
LM136H-2.5 | Texas Instru... | -- | 644 | IC VREF SHUNT 2.49V TO46-... |
LM136H-5.0/NOPB | Texas Instru... | -- | 431 | IC VREF SHUNT 5V TO46-3Sh... |
LM136AH-2.5 | Texas Instru... | 10.61 $ | 482 | IC VREF SHUNT 2.49V TO46-... |
LM139N | STMicroelect... | -- | 1000 | IC COMP QUAD LOW PWR 14DI... |
LM139APT | STMicroelect... | 0.0 $ | 1000 | IC COMP QUAD LOW PWR 14TS... |
LM139ADT | STMicroelect... | 0.53 $ | 1000 | IC COMP QUAD LOW PWR SO-1... |
LM139ADG4 | Texas Instru... | -- | 137 | IC QUAD DIFF COMPARATOR 1... |
LM139J | Texas Instru... | -- | 5 | IC COMP QUAD LPWR L OFF V... |
LM136-5.0-MW8 | Texas Instru... | 7.97 $ | 1000 | LM136-5.0-MW8Voltage Refe... |
LM136AH-5.0/NOPB | Texas Instru... | -- | 1000 | IC VREF SHUNT 5V TO46-3Sh... |
LM136AH-2.5/NOPB | Texas Instru... | -- | 1000 | IC VREF SHUNT 2.49V TO46-... |
LM136AH-5.0 | Texas Instru... | -- | 20 | IC VREF SHUNT 5V TO46-3Sh... |
LM139DRG4 | Texas Instru... | -- | 1000 | IC QUAD DIFF COMPARATOR 1... |
LM13700MX | Texas Instru... | 0.48 $ | 1000 | IC OPAMP TRANSCOND 2MHZ 1... |
LM13700MX/NOPB | Texas Instru... | -- | 1944 | IC OPAMP TRANSCOND 2MHZ 1... |
LM13700N/NOPB | Texas Instru... | -- | 5307 | IC OPAMP TRANSCOND 2MHZ 1... |
LM13700M/NOPB | Texas Instru... | 0.97 $ | 4049 | IC OPAMP TRANSCOND 2MHZ 1... |
LM137K | STMicroelect... | -- | 1000 | IC REG LINEAR NEG ADJ 1.5... |
LM138K | STMicroelect... | 0.0 $ | 1000 | IC REG LINEAR POS ADJ 5A ... |
LM1301-9RG | Bel Power So... | 429.52 $ | 1000 | AC/DC CONVERTER 12V 50WEn... |
LM138K STEEL/NOPB | Texas Instru... | 40.87 $ | 63 | IC REG LINEAR POS ADJ 5A ... |
LM137H/NOPB | Texas Instru... | -- | 532 | IC REG LIN NEG ADJ 1.5A T... |
LM137H | Texas Instru... | 11.87 $ | 41 | IC REG LIN NEG ADJ 1.5A T... |
LM138K STEEL | Texas Instru... | 45.93 $ | 57 | IC REG LINEAR POS ADJ 5A ... |
LM135H/NOPB | Texas Instru... | -- | 1000 | SENSOR TEMP ANLG VOLT TO ... |
LM135H | Texas Instru... | 9.49 $ | 822 | SENSOR TEMP ANLG VOLT TO ... |
LM135AH/NOPB | Texas Instru... | -- | 1055 | SENSOR TEMP ANLG VOLT TO ... |
LM135AH | Texas Instru... | -- | 540 | SENSOR TEMP ANLG VOLT TO ... |
LM135Z | STMicroelect... | -- | 3222 | IC TEMP SENSOR PREC TO-92... |
Latest Products
MCP1812AT-018/OT
Linear Regulator/LDO Regulator IC 1 Outp...
TPS7A0533PYKAR
Linear Regulator IC Positive Fixed 1 Out...
LP590728QDQNRQ1
Linear Regulator IC Positive Fixed 1 Out...
TLV74033PDQNR
Linear Regulator IC Positive Fixed 1 Out...
LM2775QDSGTQ1
Charge Pump Switching Regulators, Switch...
TPS7A0530PDBZR
Linear Regulator IC Positive Fixed 1 Out...