Overview
The NCP705MT30TCG, produced by onsemi, is an ultra-low quiescent current Linear Low Dropout (LDO) regulator. This device is designed to provide a stable and accurate voltage supply with ultra-low noise and high Power Supply Rejection Ratio (PSRR), making it suitable for noise-sensitive RF applications such as power amplifiers in satellite radios, infotainment equipment, and precision instrumentation. The NCP705MT30TCG is particularly optimized for battery-operated portable applications, featuring dynamic Iq management to minimize quiescent current consumption at light-load conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage | 2.5 | 5.5 | V | |
| Output Voltage Range (Fixed) | 0.8 | 3.5 | V | |
| Output Voltage Range (Adjustable) | 0.8 | 5.5 - VDROP | V | |
| Reference Voltage | 0.8 | V | ||
| Quiescent Current | 13 | μA | ||
| Noise (100 Hz to 100 kHz) | 12 | μVrms | ||
| Dropout Voltage (Typical at 500 mA) | 230 | 350 | mV | |
| Output Voltage Accuracy | -2 | +2 | % | |
| Power Supply Rejection Ratio (PSRR) at 1 kHz | 71 | dB | ||
| Thermal Shutdown Temperature | 160 | °C | ||
| Output Current Limit | 510 | 750 | 950 | mA |
Key Features
- Ultra-low quiescent current of 13 μA typical.
- Ultra-low noise: 12 μVrms from 100 Hz to 100 kHz.
- Very low dropout voltage: 230 mV typical at 500 mA.
- High PSRR: 71 dB at 1 kHz.
- Internal soft-start to limit the turn-on inrush current.
- Thermal shutdown and current limit protections.
- Stable with a 1 μF ceramic output capacitor.
- Active output discharge for fast turn-off.
- Pb-free device.
Applications
- PDAs, Mobile Phones, GPS, Smartphones.
- Wireless Handsets, Wireless LAN, Bluetooth®, ZigBee®.
- Portable Medical Equipment.
- Other battery-powered applications.
Q & A
- What is the typical quiescent current of the NCP705MT30TCG?
The typical quiescent current is 13 μA. - What is the noise level of the NCP705MT30TCG from 100 Hz to 100 kHz?
The noise level is 12 μVrms. - What is the dropout voltage at 500 mA for the NCP705MT30TCG?
The typical dropout voltage is 230 mV. - What is the PSRR at 1 kHz for the NCP705MT30TCG?
The PSRR is 71 dB. - Does the NCP705MT30TCG have thermal shutdown protection?
Yes, it has thermal shutdown protection with a temperature threshold of 160°C. - What is the output current limit for the NCP705MT30TCG?
The output current limit is between 510 mA and 950 mA. - Is the NCP705MT30TCG stable with a 1 μF ceramic output capacitor?
Yes, it is stable with a 1 μF ceramic output capacitor. - Does the NCP705MT30TCG have an active output discharge feature?
Yes, it has an active output discharge feature for fast turn-off. - What are the typical applications for the NCP705MT30TCG?
Typical applications include PDAs, mobile phones, GPS, smartphones, wireless handsets, portable medical equipment, and other battery-powered devices. - Is the NCP705MT30TCG a Pb-free device?
Yes, it is a Pb-free device.
