Overview
The NCV59749MNADJTBG is a dual-rail, very low dropout (LDO) linear voltage regulator produced by onsemi. This device is capable of providing an output current in excess of 3.0 A with a dropout voltage of 120 mV at full load current. It features adjustable output voltage, programmable soft-start, and internal protection mechanisms such as thermal shutdown and output current limiting. The regulator is stable with ceramic and other types of output capacitors greater than or equal to 2.2 µF. It is AEC-Q100 qualified and PPAP capable, making it suitable for automotive, consumer, and industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 3.0 A | A |
| VIN Range | 0.8 V to 5.5 V | V |
| VBIAS Range | 2.7 V to 5.5 V | V |
| Output Voltage Range | 0.8 V to 3.6 V | V |
| Dropout Voltage | 120 mV at 3 A | mV |
| Maximum Junction Temperature | +125 °C | °C |
| Package | QFN20 5x5 | - |
| ESD Capability (Human Body Model) | 2000 V | V |
| ESD Capability (Machine Model) | 200 V | V |
Key Features
- Output current in excess of 3.0 A
- Adjustable output voltage from 0.8 V to 3.6 V
- Programmable soft-start for controlled voltage rising and reduced inrush current
- Internal protection features including thermal shutdown and output current limiting
- Open drain Power Good (PG) output for monitoring and sequencing
- Stable with ceramic and any other type of output capacitor ≥ 2.2 µF
- Fast transient response
- AEC-Q100 qualified and PPAP capable for automotive and other demanding applications
Applications
- Automotive equipment
- Consumer and industrial point of load regulation
- FPGA, DSP, and logic power supplies
- Switching power supply post-regulation
Q & A
- What is the maximum output current of the NCV59749MNADJTBG?
The maximum output current is in excess of 3.0 A.
- What is the dropout voltage at full load current?
The dropout voltage is 120 mV at 3 A.
- What is the range of the adjustable output voltage?
The output voltage can be adjusted from 0.8 V to 3.6 V.
- What type of capacitors can be used for output stability?
The device is stable with ceramic and any other type of output capacitor ≥ 2.2 µF.
- Does the NCV59749MNADJTBG have internal protection features?
Yes, it includes thermal shutdown and output current limiting protection.
- How is the soft-start feature programmed?
The soft-start timing is programmable by an external Css capacitor value connected to the SS pin.
- What is the purpose of the Power Good (PG) pin?
The PG pin is an open-drain, active-high output that indicates the status of VOUT and can be used for monitoring and sequencing other devices.
- What is the package type of the NCV59749MNADJTBG?
The device is available in a QFN20 5x5 package.
- Is the NCV59749MNADJTBG suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
- What is the maximum junction temperature for the NCV59749MNADJTBG?
The maximum junction temperature is +125 °C.
