LDO Voltage Regulators regulate the output voltage when the difference between the input voltage and output voltage is low. The primary drivers of LDO Voltage Regulators market expansion are rapid industrialization, particularly in developing nations, and the rising demand for electricity and power from the residential and commercial sectors. Furthermore, the increasing demand for consumer electronics and automobiles that use voltage regulators in smart electronic devices is also driving market growth. In this article, everything PE has listed some interesting LDO Voltage Regulators that were trending on the website.
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Radiation Hardened LDO Voltage Regulator for LEO Applications
The LEO3910 from STMicroelectronics is a Radiation Hardened Positive LDO Voltage Regulator that operates from 3 to 12 V. It provides an adjustable output voltage of 1.23 to 9 V and has a low-dropout voltage of less than 1.5 V. It delivers an output current of up to 2 A. This AEC-Q100-qualified LDO voltage regulator consists of a junction temperature detection circuit for over-temperature protection. It is designed to limit the maximum load current to protect the output stage against possible over-current-related damages. This space-qualified LDO voltage regulator is available in a through-hole package and is ideal for Low Earth Orbit (LEO) applications. Read more.
LDO Voltage Regulators for Power Management Applications
The AP7387 Series from Diodes Incorporated are LDO Voltage Regulators that operate from 5 to 60 V. These fixed voltage regulators have a dropout voltage of 700-1100 mV and an output current of up to 150 mA. They are available at 3 V, 3.3 V, 3.6 V, and 5 V fixed output voltages. These LDO voltage regulators offer a very fast line/load transient response against the rapid input voltage and load current changes. They consist of a voltage reference, an error amplifier, a current-limit circuit for current protection, short-circuit protection, and thermal shutdown protection circuits. These AEC-Q100/11/200 qualified LDO regulators are available in a surface-mount package and are ideal for battery-powered equipment, smoke detectors and sensors, EV and HEV battery management systems, home appliances, and microcontroller applications. Read more.
Automotive Qualified Fixed/Adjustable Linear LDO Regulator
The BD950N1G-C from ROHM Semiconductor is an Automotive Qualified Fixed/Adjustable Linear Regulator that is designed to offer low current consumption for power supplies. It requires an input voltage of 3 V to 42 V. This linear regulator provides an adjustable output voltage of 3.234 V to 5.1 V and has a low dropout voltage of less than 1800 mV. It delivers an output current of up to 150 mA. This regulator is based on Nano Cap topology that connects an external resistive divider to the ADJ pin to control the output voltage and integrates an enable feature to turn on or disable the device.This AEC-Q100 qualified regulator utilizes under-voltage lockout (UVLO), over-current protection (OVP), and thermal shutdown circuitries to prevent false operation and short-circuit-related damages. Read more.
Automotive Qualified Fixed/Adjustable Linear Voltage Regulator
The NCV8705 from onsemi is an Automotive Qualified Low Dropout Linear Voltage Regulator. It requires an input voltage of 2.5 V to 5.5 V. This LDO provides an adjustable output voltage of 0.8 V to 5.5 V and has a low dropout voltage of less than 350 mV. It delivers an output current of up to 950 mA. This NCV8705 is designed to provide low noise and low power consumption resulting in an efficient regulator design. It integrates an innovative adaptive ground current circuit to ensure ultra-low ground current during light load conditions. This AEC-Q100 qualified regulator connects a ceramic capacitor close to the output pin to maintain stability and account for changes in temperature, DC bias, and package size. It offers internal soft-start, thermal shutdown, and current limit protection to limit the turn-on inrush current and prevent over-load-related damages. This RoHS-compliant LDO is available in a surface-mount package that measures 2.90 x 2.90 mm and is ideal for RF receivers, imaging sensors, audio processors, and other electronic applications. Read more.
Adjustable Linear LDO Regulator for Electric Meters & Portable Applications
The RAA214401 from Renesas is an Adjustable Linear LDO Regulator. It requires an input voltage of 4.5 V to 40 V. This LDO provides an adjustable output voltage from 3.2 V to 3.39 V and has a dropout voltage of 0.96 V. It is designed to provide an excellent transient response to a load or line step. This LDO regulator can withstand a rapid change in load from zero to full load with a minimum output capacitor. It regulator also provides good stability against fast transitions in the supply voltage, making it suitable for systems where two supplies are OR’ed into the regulator. This regulator provides an internal current limit function and over-temperature shutdown circuitry to shut down the output of LDO during short-circuit or high-temperature conditions. Read more.
Adjustable Linear LDO Regulator for Power Supply Applications
The MIC29372 from Microchip Technology is an Adjustable Linear LDO Voltage Regulator. It requires an input voltage of 4.3 - 26 V. This LDO provides an adjustable output voltage of 1.24 - 26 V and has a dropout voltage of 80 mV. It provides an excellent transient response to a load or line step. This input of this LDO is designed to withstand a reverse voltage of -20 V and a positive transient voltage of +60 V. It integrates a logic-controlled shutdown input that enables the regulator to be switched between ON and OFF states. This regulator offers a fold-back current limit, reversed battery, and automotive “load dump” protection circuitries to prevent short-circuit-related damages. This RoHS-compliant LDO regulator is available in a through-hole package that measures 15.8 x 10.6 mm and is ideal for battery-powered equipment, cellular telephones, laptop, notebook, palmtop computers, PCMCIA, regulation/switching, bar code scanners, automotive electronics, SMPS post-regulator, DC-DC modules, and high-efficiency linear power supply applications. Read more.
AEC-Q100 Qualified Low Dropout Linear Voltage Regulator
The TQL851CSV33 RLG is a Low Dropout Linear Voltage Regulator that is ideal for automotive and other power supply systems. This LDO requires an input voltage of 3 - 50 V. It provides a fixed output voltage of 3.3 V and has a dropout voltage of 0.06 V. This regulator is designed to offer a high accuracy output voltage of ±2% in both load and line regulation. It has an enable pin to switch the system between ON and OFF states to maintain power dissipation. This AEC-Q100 qualified LDO embeds a single small ceramic capacitor to provide both fast regulations as well as good stability, thereby ensuring optimum performance. It integrates thermal shutdown and current-limiting functions to prevent overload-related damage. This RoHS-compliant regulator is available in a surface-mount package that measures 4.9 x 6.0 x 1.7 mm. Read more.
Positive LDO Voltage Regulators for High Voltage Applications
The S-812C Series from ABLIC are Positive LDO Voltage Regulators that are designed for portable device applications that require high voltage withstanding capability. They require an input voltage of up to 16 V. These LDO regulators provide an output voltage of 2.0 - 6.0 V and have a drop-out voltage of 120 mV. They include a reference voltage detector, an error amplifier, P-channel MOSFET, a parasitic diode, a phase compensation circuit, and protection circuits. The phase compensation circuit integrated into these ICs ensures high stability and uses an ON/OFF circuit to optimally control the operation. They allow the users to use a ceramic capacitor as the output capacitor to prevent ripple effects at the load. These LDO voltage regulators are equipped with built-in short-circuit protection circuits to prevent over-voltage-related damages. Read more.
2.1 V Fixed Output LDO Voltage Regulator for Industrial Applications
The NJM2836DL3-21 from Nisshinbo Micro Devices is a Fixed Output LDO Voltage Regulator that is ideal for industrial and consumer applications. It requires an input voltage of up to +20 V. This regulator provides a fixed output voltage of 2.1 V and has a drop-out voltage of less than 0.28 V. It is manufactured using advanced bipolar technology that achieves low noise at the output, high ripple rejection, and high output voltage precision, thereby improving the overall efficiency of regulator. This LDO regulator integrates an ON/OFF control mechanism to offer additional control operation and regulation of the input voltage. It includes thermal overload protection and over-current protection (OCP) circuitries to prevent short-circuit-related damages. This RoHS-compliant low drop-out voltage regulator is available in a surface-mount package. Read more.
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