The WEALDO18NI12SFN32M22G is a voltage regulator operating from 1.8 V. It provides three output voltages 1.2 V driving output load that sinks specific current. The first output voltage applies to the VCO, the second drives the OutBuffer and the last one drives the digital circuitry.
Low Noise, High PSRR Replica Voltage Regulator
Overview
Key Features
- Power Supply : 1.8 V
- Output voltage : 1.2 V
- Quiescent current: 7.3 mA
- Maximum current: 61 mA
- Reference Voltage: 1.2 V
- PSRR : 56 dB @1 KHz
- 32 dB @1 MHz
- Noise @1KHz: -144 dBV/sqrt (Hz)
- (60 nV/sqrt (Hz))
- Noise @1MHz: -178 dBV/sqrt (Hz)
- (1.2 nV/sqrt (Hz))
- Bandwidth: 6.8 KHz
- Drop-out voltage: 16 uV (vdd18 :1.6 V – 1.8 V)
- Load regulation:
- -2.9 mV/mA Iload from 0-60mA
- (-2 mV/mA Iload close to 20mA)
- WakeUp Time (1) : 1.5 ns
- Area : 400 um x 140 um
- Process : 22FDX
- Metal Option : 19
- (1) Cload=10 pF
Block Diagram
Technical Specifications
Foundry, Node
GLOBALFOUNDRIES, 22FDX
Maturity
GDS Ready
GLOBALFOUNDRIES
Pre-Silicon:
22nm
FDX