ADP170 300 mA, Low Quiescent Current, fixed-output, CMOS Linear Regulator
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
DSP/FPGA/microprocessor supplies
Post dc-dc regulation
The ADP170/ADP171/ADP172 are low voltage input, low quiescent
current, low-dropout (LDO) linear regulators that operate from
1.6 V to 3.6 V and provide up to 300 mA of output current. The
low 55 mV dropout voltage at 300 mA load improves efficiency
and allows operation over a wide input voltage range. The low
23 μA of quiescent current at no load makes the
ADP170/ADP171/ADP172 ideal for battery-operated portable
equipment.
The ADP170 is capable of 31 fixed-output voltage options, ranging from 0.8 V to 3.0 V. ADP171 is an adjustable
version, which allows output voltages that range from 0.8 V to
3.0 V via an external divider. The ADP170/ADP171 are
optimized for stable operation with small 1 μF ceramic output
capacitors. Ideal for powering digital processors, the ADP170/ADP171 exhibit good transient performance and
occupy minimal board space. Compared with commodity types
of LDOs, the ADP170/ADP171 provide 20 dB to 40 dB better
power supply rejection ratio (PSRR) at 100 kHz, making the
ADP170/ADP171 an ideal power source for analog-to-digital
converter (ADC) mixed-signal processor systems and allowing
use of smaller size bypass capacitors. In addition, low output
noise performance without the need for an additional bypass
capacitor further reduces printed circuit board (PCB)
component count.
Short-circuit protection and thermal overload protection
circuits prevent damage in adverse conditions. The
ADP170/ADP171 are available in tiny 5-lead TSOT for the
smallest footprint solution to meet a variety of portable power
applications.
Applications
Features and Benefits- Maximum output current: 300 mA
- Input voltage range: 1.6 V to 3.6 V
- Low quiescent current
IGND = 23 μA with 0 mA load
IGND = 170 μA with 300 mA load - Low shutdown current: <1 μA
- Low dropout voltage: 66 mV at 300 mA load
- Output voltage accuracy: ±1%
- Up to 31 fixed-output voltage options available from 0.8 V to 3.0 V
- Adjustable-output voltage options
0.8 V to 3.0 V (ADP171) - Accuracy over line, load, and temperature: ±3%
- Stable with small 1 μF ceramic output capacitor
- PSRR performance of 70 dB at 10 kHz and 73 dB at 1 kHz
- See data sheet for additional features
| Design Tools |
Data Sheets
Application Notes
Frequently Asked Questions
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADP170AUJZ-1.2-R7 Production | 5 ld TSOT | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP170AUJZ-1.25-R7 Last Time Buy | 5 ld TSOT | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP170AUJZ-1.5-R7 Production | 5 ld TSOT | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP170AUJZ-1.8-R7 Production | 5 ld TSOT | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP170AUJZ-2.5-R7 Production | 5 ld TSOT | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP170AUJZ-2.8-R7 Production | 5 ld TSOT | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| ADP170-1.8-EVALZ | Evaluation Board | 60 | Y |
| ADZS-SC584-EZBRD | Evaluation Board | 435 | Y |
| ADZS-SC584-EZLITE | EZ-BRD with ICE-1000 and 2x 180 Day CCES License | 495 | Y |
