onsemi NCP171 Dual Power Mode LDO Regulators
onsemi NCP171 Dual Power Mode Low Dropout (LDO) Regulators are capable of delivering up to 80mA in Active Mode and as low as 50nA of Quiescent Current (IQ) in Low-Power Mode. The Dual-Mode function is selectable with the ECO pin allowing for dynamic switching between Active and Low-Power Modes, ideal in long-life battery-powered wireless applications.
The output voltage in Low Power mode of the NCP171 can be lowered by factory-programmed values of 50mV, 100mV, 150mV, or 200mV with respect to the nominal output voltage in Active Mode. This feature further lowers the application consumption in sleep mode.
The onsemi NCP171 LDO Regulators are offered in a compact 1.2mm2 Extremely Thin Dual Flat No-Lead (XDFN) package, ideal for space-constrained applications.
Features
- 1.7V to 5.5V operating input voltage range
- 0.6V to 3.3V output voltage range (50mV steps)
- Low-Power Mode / Active Mode externally controlled by ECO pin
- Internally factory programmable output voltage offset for Low-Power / Active Mode to 50mV, 100mV, 150mV, 200mV
- 50nA quiescent current (IQ) at no load (Low-Power Mode)
- 80mA maximum current in Active Mode and 5mA in Low-Power Mode
- 41mV typical low dropout at 80mA (Vout = 3.3V)
- ±2% output voltage accuracy in Active Mode
- High 65dB PSRR at 1kHz in Active Mode
- Active output discharge for fast output turn-off
- Current limitation, thermal shutdown
- +85°C maximum junction temperature
- XDFN-4 package type
- 1.2mm x 1.2mm package dimensions
- Pb-free device
Applications
- Smartwatches
- Medical patches
- Smoke detectors
- Home security sensors
- Battery-powered surveillance cameras
- Agricultural monitoring sensors
Block Diagram
Application Circuit
Pin Designations
Videos
Inilathala: 2019-08-12
| Na-update: 2024-02-19