- Overview
- Features
- Diagrams
- Max Ratings
- Part Numbers
Overview
 The adjustable-output ADP171 low-dropout regulators are available in a range of fixed- and adjustable-output options from 0.8V to 3.0V, making them an ideal clean power device for low-voltage analog-to-digital converters. With accuracy within ±1% initially and ±3% over line, load, and temperature, they achieve fast transient response, 300 mA load-current capability, 66 mV dropout voltage, and 70 dB power-supply rejection at 10 kHz. Their robust design features a fixed 120 µs soft-start time, short-circuit protection, and thermal-overload protection. Operating on a single 1.6V to 3.6V supply, the ADP171 draw 170 µA at full load, 23 µA with no load, and 100 nA in shutdown mode. Available in 5-lead TSOT packages, they are specified from –40°C to +125°C. Datasheet |
Features
Features
- Maximum output current: 300mA
- Input voltage range: 1.6V to 3.6V
- Low quiescent current
IGND = 23 µA with zero load
IGND = 220 µA with 170 mA load
- Low shutdown current: <1 µA
- Low dropout voltage: 66mV at 300mA load
- Output voltage accuracy: ±1%
- 5 fixed-output voltage options: 1.2V, 1.8V, 2V, 2.5V, 2.8V
- Adjustable-output voltage options 0.8V to 3.0V
- Accuracy over line, load, and temperature: ±3%
- Stable with small 1 µF ceramic output capacitor
- PSRR performance of 70 dB at 10 kHz, or 73 dB at 1 kHz
- Low noise: 30µV rms at VOUT = 0.8V
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Applications
- Mobile phones
- Digital camera and audio devices
- Portable and battery-powered equipment
- DSP/FPGA/microprocessor supplies
- Post dc-dc regulation
Datasheet
Symbols and Footprints
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Absolute Maximum Ratings
| VIN to GND |
–0.3V to +3.6V |
| VOUT to GND |
–0.3V to VIN |
| EN to GND |
–0.3V to +3.6V |
| Storage Temperature Range |
–65°C to +150°C |
| Operating Junction Temperature Range |
–40°C to +125°C |
| Operating Ambient Temperature Range |
–40°C to +85°C |
| Soldering Conditions |
JEDEC J-STD-020 |
| Datasheet |
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Part Numbers
Newest ADP171
Part Number |
Digi-Key P/N |
Packaging |
Package |
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ADP171AUJZ-R7 |
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Tape & Reel |
TSOT-23-5 |
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Cut Tape |
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Digi-Reel® |
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