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Showing Results For: Voltage Regulators
Voltage Regulators
What are voltage regulators?
A system created to automatically maintain a constant voltage is known as a voltage regulator. Negative feedback or a straightforward feed-forward architecture can be used in a voltage regulator. It could make use of electrical parts or an electromechanical mechanism. It may be used to control one or more AC or DC voltages, depending on the design. Electronic voltage regulators are used to regulate the DC voltages required by the CPU and other components in devices like the computer power supply.
Voltage regulators manage the plant's output in central power plant generators and automotive alternators. A voltage regulator can be installed at a substation or along distribution lines in an electric power distribution system to ensure that all customers receive a constant voltage regardless of how much power is consumed from the line.
Regulator specifications
The output voltage can be automated constantly within the specified constraints. This regulation is characterized by several factors:
- Load regulation is the variation in output current for a specific change in overload current, such as frequently 15 mV, maximum of 100 mV for load voltage between 5 mA and 1.4 A, at some pre-defined temperature and input voltage.
- The ratio of output to input change or the output voltage change across the whole specified input voltage range, for example, "plus or minus 2 percent for input voltages between 90 V and 260 V, 50-60 Hz," are two ways to describe line regulation of input regulation.
- The temperature coefficient of the generating voltage is the variation with temperature, such as the average temperature over a given temperature change.
- The initial accuracy of a current regulator is usually called the voltage accuracy; without taking into account the impact of temperature or aging on output precision, the voltage accuracy" is the deviation in output voltage for a specific regulator.
- Drop out voltage is the smallest difference between the input and output voltages at which the regulator can still provide the required current known as the dropout voltage. The dropout voltage is the input-output difference at which the voltage regulator will no longer sustain regulation. The reduced output voltage will be the outcome of a further input voltage decrease. This value is influenced by junction temperature and load.
- Absolute maximum ratings are specified for regulator parts, including the maximum input voltage, maximum power dissipation at a specific temperature, maximum continuous and peak output currents (often internally restricted) that may be utilized, etc.
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New Items
New items
NJM432SU-TE1, New Japan Radio
The New Japan Radio NJM432S series are adjustable precision shunt regulators. The output voltage of the regulator may be set to any value between Vref and 36V by two resistors. Compared to the conventional 431, these have improved voltage accuracy. They have smaller package option to support a wide range of applications.
Operating Voltage VREF to 36V
Adjustable Output Voltage
Bipolar Technology
New items
NJM11100F1-TE2, New Japan Radio
The New Japan Radio NJM11100 series is a 240mA output low dropout adjustable type voltage regulator. The available setting voltage range is very wide from 1.3V to 17V. This product has Reverse Current Protection without external SBD and is suitable for various applications such as car AVN, any consumer products and so on.
Low Dropout Voltage
Input Voltage Range is 2.1V to 18V
ON/OFF Control
Reverse Current Protection Circuit
Thermal Shutdown Circuit
Over Current Protection Circuit
Bipolar Technology
New items
NJM78M18DL1A-TE1, New Japan Radio
The New Japan Radio is a series of 3-Terminal Positive Voltage Regulators which is constructed using the New JRC Planar epitaxial process. These regulators employ internal current-limiting, thermal-shutdown and safe-area compensation making them essentially indestructible.
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Excellent Ripple Rejection
New items
NJW4184U3-33B-TE2, New Japan Radio
The New Japan Radio is a high voltage and low current consumption low dropout regulator. It has wide operating voltage range and low current consumption. It has two line-ups as A version and B version.
High Precision Output
Internal Over Current Protection
New items
NJU7200U10-TE1, New Japan Radio
The New Japan Radio NJU7200 series is a super low operating current CMOS and 3 terminal positive voltage regulator which contains internal accurate voltage reference, error amplifier, control transistor and output voltage setting resistor.
Super Low Operating Current
Wide Range of Output Voltage Setting
Low Dropout Voltage
Small Temperature Coefficient of Output Voltage
C MOS Technology
New items
BD750U2EFJ-CE2, ROHM
The ROHM ultra low quiescent current LDO regulator featuring 50V absolute maximum voltage and output voltage accuracy of ±2 percent, 200mA output current and 6μA current consumption, these regulators are therefore ideal for applications requiring a direct
Ultra low quiescent current 6μA
Output current capability 200mA
Output voltage 3.3 V or 5.0 V
high output voltage accuracy ±2 percent
Low saturation voltage by using PMOS output transistor
Integrated overcurrent protection to protect the IC from damage
New items
NJM78M15SDL1-TE1, New Japan Radio
The New Japan Radio NJM78M00S series is a 0.5 A output 3 terminal positive voltage regulator. It also gives high ripple rejection.
Correspond to Low ESR Capacitor
Over Current Protection Circuit
Thermal Shutdown Circuit
Output Voltage Lineup 5V, 9V, 12V, 15V
Package is TO-252-3
New items
TLE4252DATMA1, Infineon
LDO Tracking Voltage Regulators, Infineon
Linear Voltage Regulators, Infineon
We have a wide range of linear voltage regulators. The Low dropout or LDO regulators can operate with a small input-output differential voltage. The linear voltage regulators offer fast transient response, wide input voltage range, low quiescent current and low noise with high PSRR.
New items
NJM2865F3-33-TE1, Nisshinbo Micro Devices
The New Japan Radio NJM2865 series is a low output dropout voltage regulator with ON/OFF control. It has advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current.
Operating temperature range is -40°C to 85°C
Bipolar Technology
Internal thermal overload protection
New items
NJU7772F33-TE1, Nisshinbo Micro Devices
The New Japan Radio NJU7772 series is a low dropout voltage regulator designed for portable items. It has advanced CMOS technology achieves high ripple rejection and low quiescent current.
Operating temperature range is -40°C to 85°C
Internal thermal overload protection
Internal over current protection
New items
NJW4182F05-TE1, Nisshinbo Micro Devices
The New Japan Radio NJW4182 series is a low output dropout voltage regulator with high maximum input voltage, ultra-low current consumption and small package. It is suitable for light load and continuously running applications such as power management microprocessor, RTC, protection circuit, security system and so on.
Operating temperature range is -40°C to 85°C
Internal thermal overload protection
Internal over current protection
New items
MCP1804T-1802I/OT, Microchip
MCP1804 Low Dropout Voltage Regulator
The Microchip MCP1804 is a Low Dropout (LDO) Voltage Regulator that operates from an input of 2.0 V to 28 V while delivering up to 150 mA of current. The device offers a low quiescent current of 50 μA and only 1 μF of output capacitance is sufficient to stabilise the output. The MCP1804 also has a Current Foldback feature to help protect the device.
Features
150 mA Output Current
Low Dropout Voltage: 260 mV @ 20 mA, VR = 3.3 V (typical)
50 μA Quiescent Current (typical)
0.01 μA Shutdown Current (typical)
Input Operating Voltage Range: 2.0 V to 28.0 V
Output Voltage Accuracy: ±2%
Stable with Ceramic Output Capacitors
Current Limit Protection with Current Foldback
Shutdown Pin
High PSRR: 50 dB Typical @ 1 kHz
LDO (Low Dropout) Linear Voltage Regulators, Microchip