PMIC - Voltage Reference
PMIC - Voltage Reference: Precision Power Management Components
Definition & Functionality
PMIC - Voltage References are specialized integrated circuits (ICs) within the Power Management IC (PMIC) category, designed to generate a stable, precise DC voltage regardless of variations in input voltage, load conditions, or temperature. These components serve as critical "voltage standards" for analog and mixed-signal circuits, ensuring accuracy in applications like data converters, sensors, and power supplies.
Types & Key Variations
1. Series Voltage References: Provide a fixed output with low dropout voltage, ideal for battery-powered devices.
2. Shunt Voltage References: Operate like precision Zener diodes, suited for high-accuracy, low-current systems.
3. Adjustable Voltage References: Allow output customization via external resistors, offering design flexibility.
4. Bandgap References: Leverage semiconductor bandgap properties for ultra-stable outputs across temperature ranges.
5. Buried Zener References: Deliver the highest precision (e.g., 0.04%) for metrology or medical equipment.
Selection Guidelines
- Accuracy & Tolerance: Prioritize < 1% tolerance for precision systems (e.g., ADCs).
- Temperature Coefficient (TempCo): Choose <10ppm/ C for environments with thermal fluctuations.
- Noise Performance: Opt for low-noise (<10 Vpp) designs in sensitive analog circuits.
- Package & Power: Match SOT-23 (portable) or SOIC (industrial) packages to your PCB constraints.
- Long-Term Stability: Critical for automotive/industrial apps; verify datasheet aging specs (e.g., 50ppm/1000hr).
Why It Matters
Voltage References are the unsung heroes of reliable electronics, minimizing drift and noise in power rails. From IoT sensor calibration to aerospace systems, selecting the right type ensures optimal performance and longevity. Partner with trusted suppliers (e.g., Texas Instruments, Analog Devices) to source certified components with traceable quality data.
Filter and sort
Categories
TL4051B12QDCKT
IC VREF SHUNT 0.2% SC70-5
REF6230IDGKT
IC VREF SERIES 0.05% 8VSSOP
AS431BNTR-G1
IC VREF SHUNT ADJ 1% SOT23-3
LM431SACMLX
IC VREF SHUNT ADJ 2% SOT89-3
TLV431AID
IC VREF SHUNT ADJ 1% 8SOIC
LT6658BIMSE-1.2#PBF
IC VREF SERIES 6V 0.1% 16MSOP
AZ432BZTR-E1
IC VREF SHUNT ADJ 1% TO92
LT1461CCS8-3#TRPBF
IC VREF SERIES 0.08% 8SOIC
TLVH431BICT
IC VREF SHNT ADJ 0.25% SOT323-6L
LM4040C20ILPR
IC VREF SHUNT 0.5% TO92-3
UC39431N
IC VREF SHUNT ADJ 0.39% 8DIP
LM4040C30FTA
IC VREF SHUNT 0.5% SOT23
LM385MX
IC VREF SHUNT ADJ 2% 8SOIC
LT6658AHDE-5#PBF
IC VREF SERIES 6V 0.05% 16DFN
LT6656BIS6-2.5#TRMPBF
IC VREF SERIES 0.1% TSOT23-6
ADR540BKSZ-REEL7
IC VREF SHUNT PREC 4.096V SC70-3
TLVH431QDBVT
IC VREF SHUNT ADJ 1.5% SOT23-5
REF191TRZ-EP
IC VREF SERIES 0.1% 8SOIC
TL1431CZ
IC VREF SHUNT ADJ 0.4% TO92-3
LM4040D41ILPE3
IC VREF SHUNT 1% TO92-3