Overview
The NCP699SN25T1G is a fixed output Linear Low Dropout (LDO) voltage regulator from onsemi, designed specifically for handheld communication equipment and portable battery-powered applications. This regulator is notable for its ultra-low quiescent current of 40 μA, making it highly efficient for power-sensitive devices. The NCP699 series includes a voltage reference unit, an error amplifier, a PMOS power transistor, and internal resistors for setting output voltage, current limit, and temperature limit protection circuits. It is packaged in a micro-miniature TSOP-5 surface mount package, making it ideal for space-constrained designs.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (Iout = 10 mA, TA = −40°C to 85°C) | Vout | 2.425 | 2.5 | 2.575 | V |
| Line Regulation (Iout = 10 mA) | Regline | - | 1.0 | 3.0 | mV/V |
| Load Regulation (Iout = 1.0 mA to 150 mA) | Regload | - | 0.3 | 0.8 | mV/mA |
| Output Current Limit | Io(nom.) | 150 | 150 | - | mA |
| Dropout Voltage (Iout = 150 mA) | Vin-Vout | - | 340 | - | mV |
| Disable Current (TA = −40°C to 85°C) | DIS | - | 0.03 | 1.0 | μA |
| Ground Current (TA = −40°C to 85°C) | IGND | - | 40 | 90 | μA |
| Operating Temperature Range | - | -40°C | - | 85°C | - |
Key Features
- Enable Control (Active High, Supports Sub 1 V Logic): The regulator can be turned on and off using the enable pin, which supports logic levels below 1 V.
- Very Low Ground Current of 40 μA Typical: This feature makes the NCP699 highly efficient for battery-powered applications.
- Low Dropout Voltage of 340 mV at 150 mA and 3.0 V Vout: Ensures minimal voltage drop, even at high output currents.
- Multiple Fixed Output Voltage Options: Available in various fixed output voltages from 1.3 V to 5.0 V in 100 mV steps.
- Output Voltage Accuracy of 2.0%: Provides stable and accurate output voltage.
- Operating Temperature Range of −40°C to 85°C: Suitable for a wide range of environmental conditions.
- Stable with 1 μF Ceramic or Tantalum Capacitors: Can be used with low-cost capacitors, enhancing design flexibility.
- Pb-Free Devices: Compliant with environmental regulations.
Applications
- Cellular Phones: Ideal for power management in mobile devices.
- Battery Powered Consumer Products: Suitable for a variety of portable consumer electronics.
- Hand-Held Instruments: Used in devices such as handheld meters and diagnostic tools.
- Camcorders and Cameras: Provides stable power for imaging devices.
- Printers and Office Equipment: Used in various office and printing devices.
Q & A
- What is the typical ground current of the NCP699SN25T1G?
The typical ground current is 40 μA, independent of the load current.
- What is the dropout voltage at 150 mA and 3.0 V Vout?
The dropout voltage is 340 mV.
- What is the operating temperature range of the NCP699SN25T1G?
The operating temperature range is −40°C to 85°C.
- Can the NCP699SN25T1G be used with low-cost capacitors?
- What is the output voltage accuracy of the NCP699SN25T1G?
The output voltage accuracy is 2.0%.
- How does the enable pin function on the NCP699SN25T1G?
The enable pin turns the regulator on when pulled high and turns it off when pulled low, supporting sub 1 V logic.
- What are the typical applications of the NCP699SN25T1G?
Typical applications include cellular phones, battery-powered consumer products, hand-held instruments, camcorders, cameras, and printers.
- What is the maximum output current of the NCP699SN25T1G?
The maximum output current is 150 mA.
- Is the NCP699SN25T1G Pb-free?
- What package type is the NCP699SN25T1G available in?
The device is housed in a micro-miniature TSOP-5 surface mount package.
