The WEALDORP1812NI8SFN12M22G is a low-dropout regulator LDO with voltage supplies 1.8 V and 1.2 V. The WEALDORP1812NI8SFN12M22G gives one output voltage 1.2 V driving the Power Amplifier. The output is programmable to retain the output voltage constant when the load current varies under a wide range.
Low Noise, High PSRR, Replica LDO
Overview
Key Features
- Voltage Supplies: 1.2 V, 1.8 V
- Output voltage: 1.2 V
- Max Output Current: 90 mA
- Quiescent current: 7.1 mA
- Maximum current: 51 mA
- Reference Voltage: 1.2 V
- PSRR: 70 dB @1 KHz, 1.8 V
- 91 dB @1 KHz, 1.2 V
- PSRR: 49 dB @1 MHz,1.8 V
- 18 dB @1 MHz,1.2 V
- Noise @1KHz: -145 dBV/sqrt (Hz) (54.8nV/sqrt (Hz))
- Noise @1MHz: -173 dBV/sqrt (Hz) (2.2nV/sqrt (Hz))
- Bandwidth: 6.8 KHz
- Drop-out voltage: 14 mV (vdd12)
- Load regulation:
- 2.7 mV/mA Iload from 0-60mA
- (1.8 mV/mA Iload close to 20mA)
- Area: 211 um x 287 um
- Process : 22FDX
- Metal Option : 19
Block Diagram
Technical Specifications
Foundry, Node
GLOBALFOUNDRIES, 22FDX
Maturity
GDS Ready
GLOBALFOUNDRIES
Pre-Silicon:
22nm
FDX