ADP172 300 mA, Low Quiescent Current, fixed-output, CMOS Linear Regulator in a WLCSP footprint
Applications
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 50 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 ADP172 ideal for battery-operated portable equipment.
The ADP172 is capable of 31 fixed-output voltage options, ranging from 0.8 V to 3.0 V. The ADP172 is optimized for stable operation
with small 1 μF ceramic output capacitors. Ideal for powering digital processors, the ADP172 exhibits good transient perform-
ance and occupies minimal board space. Compared with commodity-type LDOs, the ADP172 provides 20 dB to 40 dB
better power supply rejection ratio (PSRR) at 100 kHz, making the ADP172 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 ADP172 is available
in a tiny 4-ball, 0.5 mm pitch WLCSP for the smallest footprint
solution to meet a variety of portable power 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: 50 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
- 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
- Low noise: 30 μV rms at VOUT = 0.8 V
- Current limit and thermal overload protection
- Logic-controlled enable
- Tiny 4-ball, 0.5 mm pitch WLCSP package
| Design Tools |
Data Sheets
Application Notes
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADP172ACBZ-0.9-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-1.0-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-1.2-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-1.26-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 85C | 0 | 0.33 | Y |
| ADP172ACBZ-1.5-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-1.65-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-1.7-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-1.8-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-2.1-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-2.9-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
| ADP172ACBZ-3.0-R7 Production | 4 ball WLCSP (1.02x0.95mm) | REEL 3000 | -40 to 125C | 0 | 0.33 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| ADP172CB1.26-EVALZ | 1.26V Evaluation Board | 60 | Y |
| ADP172CB-1.2-EVALZ | 1.2V Evaluation Board | 60 | Y |
| ADP172CB-1.5-EVALZ | 1.5V Evaluation Board | 60 | Y |
| ADP172CB-1.8-EVALZ | 1.8V Evaluation Board | 60 | Y |
| ADP172CB-3.0-EVALZ | 3V Evaluation Board | 60 | Y |
