Overview
The NCP59748MN1ADJTBG is a dual-rail, very low dropout voltage regulator produced by onsemi. This device is capable of providing an output current in excess of 1.5 A with a typical dropout voltage of 60 mV at full load current. It is stable with ceramic and any other type of output capacitor greater than or equal to 2.2 µF. The regulator features an adjustable output voltage range from 0.8 V to 3.6 V and includes internal protection such as thermal shutdown and output current limiting. Additionally, it offers user-programmable Soft-Start and Power-Good pins, available in both QFN20 5×5 and DFN10 3×3 packages.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 0.8 | - | 5.5 | V |
| Bias Pin Voltage Range | VBIAS | 2.7 | - | 5.5 | V |
| Output Voltage Range | VOUT | 0.8 | - | 3.6 | V |
| Dropout Voltage (VIN) | VDO | - | 60 | 165 | mV |
| Maximum Output Current | IOUT | - | - | Internally Limited | A |
| Thermal Shutdown Temperature | TSD | - | - | +165 | °C |
| Storage Junction Temperature Range | TSTG | -55 | - | +150 | °C |
Key Features
- Output Current in Excess of 1.5 A
- Ultra-Low Dropout Voltage of 60 mV at Full Load Current
- Stable with Any Type of Output Capacitor ≥ 2.2 µF
- Adjustable Output Voltage Range from 0.8 V to 3.6 V
- Programmable Soft-Start
- Open Drain Power Good Output
- Fast Transient Response
- Internal Protection: Thermal Shutdown and Output Current Limiting
- Pb-Free Devices
Applications
- Consumer and Industrial Equipment Point of Load Regulation
- FPGA, DSP, and Logic Power Supplies
- Switching Power Supply Post Regulation
- Networking and Telecommunications
- Computing and Peripherals
- Medical Devices (e.g., Ultrasound Imaging, Camera & Vision Systems)
- Servers and Cellular Infrastructure Equipment
- Wireless Routers and PoE Equipment
- High-End Computing Equipment
Q & A
- What is the maximum output current of the NCP59748?
The NCP59748 can provide an output current in excess of 1.5 A.
- What is the typical dropout voltage of the NCP59748?
The typical dropout voltage is 60 mV at full load current.
- What types of output capacitors are supported by the NCP59748?
The device is stable with ceramic and any other type of output capacitor ≥ 2.2 µF.
- What is the adjustable output voltage range of the NCP59748?
The output voltage can be adjusted from 0.8 V to 3.6 V.
- Does the NCP59748 have built-in protection features?
Yes, it includes internal thermal shutdown and output current limiting protection.
- What packages are available for the NCP59748?
The NCP59748 is offered in DFN10 3×3 and QFN20 5×5 packages.
- How is the Soft-Start feature programmed in the NCP59748?
The Soft-Start timing is programmable by an external Css capacitor value.
- What is the purpose of the Power Good (PG) output in the NCP59748?
The Open Drain type Power Good (PG) output is available for Vout monitoring and sequencing of other devices.
- How does the thermal shutdown feature work in the NCP59748?
The internal thermal shutdown (TSD) circuitry turns off the regulator output when the maximum junction temperature is exceeded and reactivates when the temperature drops below the threshold.
- What is the recommended capacitor value for input and output in applications with low input supply impedance?
In such applications, the recommended CIN and CBIAS value is 1 µF or greater, using ceramic or other low ESR capacitors.
