ADP125 5.5 V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulators
The ADP124/ADP125 are low quiescent current, low dropout linear regulators. They are designed to operate from an input voltage between 2.3 V and 5.5 V and to provide up to 500 mA of output current. The low 130 mV dropout voltage at a 500 mA load improves efficiency and allows operation over a wide input voltage range.
The low 210 μA of quiescent current with a 500 mA load makes the ADP124/ADP125 ideal for battery-operated portable equipment.
The ADP124 is capable of 31 fixed-output voltages from 1.75 V to 3.3 V. The ADP125 is the adjustable version of the device and allows the output voltage to be set between 0.8 V and 5.0 V by an external voltage divider.
The ADP124/ADP125 are specifically designed for stable operation with tiny 1 μF ceramic input and output capacitors to meet the requirements of high performance, space constrained applications.
The ADP124/ADP125 have an internal soft start that gives a constant start-up time of 350 μs. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP124/ADP125 are available in an 8-lead exposed paddle MSOP package. When compared with the standard MSOP package, the exposed paddle MSOP package has lower thermal resistance (θJA). The lower thermal resistance package allows the ADP124/ADP125 to meet the needs of a variety of portable applications while minimizing the rise in junction temperature.
Applications
- Digital camera and audio devices
- Portable and battery-powered equipment
- Automatic meter reading (AMR) meters
- GPS and location management units
- Medical instrumentation
- Point of load power
Features and Benefits- Input voltage supply range: 2.3 V to 5.5 V
- 500 mA maximum output current
- Fixed and adjustable output voltage versions
- 1% initial accuracy
- Up to 31 fixed-output voltage options available from 1.75 V to 3.3 V
- Adjustable-output voltage range from 0.8 V to 5.0 V
- Very low dropout voltage: 130 mV
- Low quiescent current: 45 μA
- Low shutdown current: <1 μA
- Excellent PSRR performance: 60 dB at 100 kHz
- Excellent load/line transient response
- See data sheet for additional features
| Design Tools |
Data Sheets
Application Notes
User Guides
Frequently Asked Questions
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADP125ACPZ-R7 Production | 8 ld LFCSP (2x2mm w/1.6x1.0 EP) | REEL 3000 | -40 to 125C | 0 | 0.42 | Y |
| ADP125ARHZ Production | 8 ld MSOP_ED | OTH 50 | -40 to 125C | 0.7 | 0.68 | Y |
| ADP125ARHZ-R7 Production | 8 ld MSOP_ED | REEL 1000 | -40 to 125C | 0 | 0.68 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| ADP125CP-EVALZ | Evaluation Board | 60 | Y |
| ADP125-EVALZ | Evaluation Board | 60 | Y |
