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.
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TLVH431BILP
IC VREF SHUNT ADJ 0.5% TO92-3
LM4040C30ILP
IC VREF SHUNT 0.5% TO92-3
ISL60002DIH325Z-TK
IC VREF SERIES 0.2% SOT23-3
TL432ACDBZR
IC VREF SHUNT ADJ 1% SOT23-3
LM4040AEM3-2.1+T
IC VREF SHUNT 2.048V SOT23
MAX6062BEUR-T
IC VREF SERIES 0.39% SOT23-3
AD586LR
IC VREF SERIES 0.05% 8SOIC
LM4040AIZ-5.0/NOPB
IC VREF SHUNT 0.1% TO92-3
LM4041CEM3-1.2-T
PRECISION MICROPOWER SHUNT VREF
MAX6126BASA30+
IC VREF SERIES 0.06% 8SOIC
ISL60002BIH320Z-T7A
IC VREF SERIES 0.05% SOT23-3
MAX6018BEUR21
VOLTAGE REFERENCE
ATL432LIBQDBZR
IC VREF SHUNT ADJ 0.5% SOT23-3
TL4051AQDCKR
IC VREF SHUNT ADJ 0.1% SC70-5
AD1584ART-R2
IC VREF SRS PREC 4.096V SOT23-3
LT1389BCS8-1.25#PBF
IC VREF SHUNT 0.05% 8SOIC
LT6658AHMSE-1.8#TRPBF
IC VREF SERIES 6V 0.05% 16MSOP
MAX6030BEUR-T
IC VREF SERIES 0.4% SOT23-3
REF5045IDGKR
IC VREF SERIES 0.05% 8VSSOP
MAX6045AEUR
VOLTAGE REFERENCE