Our linear and Low-Dropout Regulators are power supply ICs with a wide range of specifications and performance for consumer, computing, communications, portable, industrial, and automotive applications. They provide a simple, cost-effective way to deliver a regulated output voltage from a higher voltage source.
Our standard linear regulators include the popular industry-standard 78 series for meeting the needs of many low-cost projects. ZMR and ZSR devices provide local voltage regulation with low quiescent current, making them ideal for low-power applications. The ZXTR products allow for input voltages of 100 volts, which provide unique solutions for industrial and automotive applications.
Our Low-Dropout Regulators (LDOs) simplify the system design with their low dropout voltages and an array of features that can focus on noise reduction, circuit protection, minimal power consumption, and extremely small footprints. The portfolio encompasses a wide array of capabilities, featuring low IQ LDOs, high PSRR LDOs, wide input voltage LDOs (40v, 45v, 60v), small-size LDOs, high-voltage LDOs, and high-current LDOs.
The AP7375 has a wide Vin range (3V~45V), 300mA output current, and ultra-low quiescent current (2.1µA). This LDO makes an efficient choice for multi-cell battery-powered equipment.
For the harsh automotive environment, we have developed a portfolio of automotive-compliant LDOs that are AEC-qualified, manufactured in TS16949-certified sites, and support PPAP documents.
Technical Articles:
Ultra-low dropout LDOs provide the perfect regulation for a wide range of devices
When You Really Need Low-Dropout Regulation: A New LDO from Diodes Incorporated
Small-size LDOs | High PSRR LDOs | Low IQ LDOs | Wide Input Voltage LDOs | High Current LDOs | Automotive LDOs
Small-size LDOs: Small form factor
Electronic miniaturization is now mainstream requiring chip-scale or near chip-scale components to meet the size and density requirements. Diodes' Small-size LDOs accomplish this challenging task and deliver the same high-quality performance while consuming as little space as possible.
| Part Number | Description | Package Size (mm) | Datasheet | Order Options |
| AP7350 | 150mA, Ultra-Low IQ in Ultra-Small 0.64-mm x 0.64-mm WLCSP | X2-WLB0606-4 (0.64×0.64) | Download | Buy Now |
| AP7340 | 150mA, 1% Accuracy, Low Noise LDO | X2-DFN1010-4 (1×1) | Download | Buy Now |
| AP7341 | 300mA, Low IQ for RF application | X2-DFN1010-4 (1×1) | Download | Buy Now |
| AP7346 | Dual 130mA, High Accuracy Current Limit | X2-DFN1212-6 (1.2×1.2) | Download | Buy Now |
| AP7342 | Dual 150mA, High PSRR, Low Noise LDO | X2-DFN1212-6 (1.2×1.2) | Download | Buy Now |
| AP7344 | Dual 300mA, High PSRR LDO | X2-DFN1612-8 (1.6×1.2) | Download | Buy Now |
| AP7348 | Quad 300mA, High PSRR LDO | X2-DFN1612-8 (1.6×1.2) | Download | Buy Now |
| AP7353 | 250mA, High PSRR LowNoise LDO with Enable | X1-WLB0707-4 (Type A1) X2-DFN1010-4 (Type B) |
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High PSRR LDOs: Clean up your power supply 
High PSRR LDOs effortlessly power any system in a rough power supply environment. They provide high rejection on the power supply noise to provide clean, DC power to ensure system reliability.
| Part Number | Description | PSRR (dB) | Datasheet | Order Options |
| AP7330 | 300mA, Low Noise LDO with Enable | 80 | Download | Buy Now |
| AP7340 | 150mA, 1% Accuracy, Low Noise LDO | 75 | Download | Buy Now |
| AP7343 | 300mA, Low Dropout with Enable (SOT25) | 75 | Download | Buy Now |
| AP7353 | 250mA, High PSRR LowNoise LDO with Enable (DFN1010, WLB0707) | 90 | Download | Buy Now |
Every day more and more battery-powered products are being introduced into our daily lives. Low IQ LDOs can help to extend the battery life of these essential devices. Preserving energy is the task of today’s electronic devices, and by minimizing the quiescent current of an LDO, our products help to achieve low standby power across a variety of applications.
| Part Number | Description | IQ (µA) | Datasheet | Order Options |
| AP7350 | 150mA, Ultra-Low IQ, in Ultra-Small 0.64-mm x 0.64-mm WLCSP | 0.25 | Download | Buy Now |
| AP7351D | 150MA, Ultra-Low Quiescent Current LDO with ENABLE | 0.50 | Download | Buy Now |
| AP7354 | 150mA, Ultra-Low IQ, Low-Dropout | 0.25 | Download | Buy Now |
| AP2138 | 250mA, Low IQ LDO | 1 | Download | Buy Now |
| AP2139 | 250mA, with Fast Output Discharge | 1 | Download | Buy Now |
Diodes’ wide input voltage LDOs, up to 60 volts, provide simple, cost-effective solutions to supply MCUs, Embedded systems, sensors, and other active components when facing a high-voltage environment. The high accuracy and current limit functions make any design more reliable and robust.
| Part Number | Description | VIN Max (V) | Datasheet | Order Options |
| AP2205 | 200mA, high accuracy, high ripple rejection, low dropout voltage, low noise, current limit, and ultra-low quiescent current | 24 | Download | Buy Now |
| AP7370 | 300mA high accuracy, low dropout voltage, current limit, reverse current protection, and ultra-low quiescent current | 18 | Download | Buy Now |
| AP7380 | 150mA, Ultra-Low IQ, +/-1% Accuracy LDO with Current Limit and Enable | 24 | Download | Buy Now |
| AP7375 | 300mA ULDO Regulator | 45 | Download | Buy Now |
| AP7387 | 150mA ULDO Regulator | 60 | Download | Buy Now |
High-current LDOs: Heavy load, Avoid switching noise 
Switching noise can threaten performance in many applications. Our high current LDOs up to 3A provides clean, accurate, and efficient power for those heavy, sensitive loads. Additional High-PSRR featured LDOs eliminate ripple, offer high output accuracy (1% max), and deliver low dropout of 330mV and below.
| Part Number | Description | IOUT (A) | Datasheet | Order Options |
| AP7366EA | 600mA, Low Quiescent Current Fast Transient Low Dropout Linear Regulator | 0.6 | Download | Buy Now |
| AP7361EA | 1A, Low Dropout Adjustable and Fixed-Mode Regulator with ENABLE | 1 | Download | Buy Now |
| AP7173 | 1.5A, With Programmable Soft-Start | 1.5 | Download | Buy Now |
| AP7179D | 3A, Ultra Low Noise, High Accuracy, LDO Voltage Regulator | 3 | Download | Buy Now |
Automotive LDOs: Compliant to AEC-Q100 with a Grade 1 (-40C to +125C) temperature rating
Diodes Automotive LDOs feature a high power supply rejection ratio (PSRR) of 75dB at 1kHz to deliver stable output voltages suitable for automotive applications, such as point of load power supplies in ADAS, RF communications, cameras, and infotainment systems. The products are available with or without an output discharge function.
| Part Number | Description | IOUT (mA) | Datasheet | Order Options |
| AP7315Q | HIGH PSRR, LOW NOISE WITH ENABLE | 150 | Download | Buy Now |
| AP7343Q | HIGH PSRR, LOW NOISE WITH ENABLE | 300 | Download | Buy Now |
| AP7347DQ | High PSRR Low Noise LDO With Enable | 500 | Download | Buy Now |
| Wide Input Voltage Range, ULDO Regulator | 300 | Download | Buy Now | |
| AP7583Q | Wide Input Voltage Range, ULDO Regulator with PG | 300 | Download | Buy Now |
| AP7583AQ | Wide Input Voltage Range, ULDO Regulator with PG | 300 | Download | Buy Now |
| AP7387Q | Wide Input Voltage Range, ULDO REGULATOR | 150 | Download | Buy Now |
Technical Documents:
