ADP322 Triple, 200 mA, Low Noise, High PSRR Voltage Regulator
The ADP322/ADP323 200 mA triple output LDOs combine high
PSRR, low noise, low quiescent current, and low dropout voltage
to extend the battery life of portable devices and are ideally
suited for wireless applications with demanding performance
and board space requirements.
The ADP322/ADP323 PSRR is greater than 60 dB for frequencies
as high as 100 kHz while operating with a low headroom voltage.
The ADP322/ADP323 offer much lower noise performance
than competing LDOs without the need for a noise bypass
capacitor.
The ADP322/ADP323 are available in a miniature 16-lead,
3 mm × 3 mm LFCSP package and are stable with tiny 1 μF
±30% ceramic output capacitors, providing the smallest possible
board area for a wide variety of portable power needs.
The ADP322 is available in output voltage combinations ranging
from 0.8 V to 3.3 V and offers overcurrent and thermal protection
to prevent damage in adverse conditions. The ADP323
adjustable triple LDO can be configured for any output voltage
between 0.5 V and 5 V with two resistors for each output.
Applications
- Mobile phones
- Digital cameras and audio devices
- Portable and battery-powered equipment
- Portable medical devices
- Post dc-to-dc regulation
Features and Benefits- Fixed (ADP322) and adjustable output (ADP323) options
- Bias voltage range (VBIAS): 2.5 V to 5.5 V
- LDO input voltage range (VIN1/VIN2, VIN3):
1.8 V to 5.5 V - Three 200 mA low dropout voltage regulators (LDOs)
- 16-lead, 3 mm × 3 mm LFCSP
- Initial accuracy: ±1%
- Stable with 1 μF ceramic output capacitors
- No noise bypass capacitor required
- High PSRR
76 dB PSRR up to 1 kHz
70 dB PSRR at 10 kHz
60 dB PSRR at 100 kHz
40 dB PSRR at 1 MHz - Low output noise
- 24 μV rms typical output noise at VOUT = 1.2 V
- 43 μV rms typical output noise at VOUT = 2.8 V
- Excellent transient response
- See data sheet for additional features
| Design Tools |
Data Sheets
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADP322ACPZ-115-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
| ADP322ACPZ-135-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
| ADP322ACPZ-145-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
| ADP322ACPZ-155-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
| ADP322ACPZ-165-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
| ADP322ACPZ-175-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
| ADP322ACPZ-189-R7 Production | 16 ld LFCSP (3x3mm, 1.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 0.54 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| ADP322CPZ-REDYKIT | REDYKIT | -1 | Y |
Reference Materials
