PMIC - Voltage Regulators - Linear Regulator Controllers
PMIC - Voltage Regulators - Linear Regulator Controllers
Definition:
Linear Regulator Controllers are a specialized subset of Power Management Integrated Circuits (PMICs) designed to control linear voltage regulators, which provide stable DC output by dissipating excess power as heat. These controllers are essential for applications requiring precise voltage regulation, low noise, and fast transient response, often serving as the brain behind external pass elements like MOSFETs or bipolar transistors.
Types of Linear Regulator Controllers:
1. Adjustable Linear Regulator Controllers: Allow customizable output voltage via external resistors, ideal for flexible designs.
2. Fixed-Output Linear Regulator Controllers: Deliver preset voltages, simplifying circuit design for standardized requirements.
3. Low-Dropout (LDO) Controllers: Optimized for minimal input-output differentials, critical in battery-powered devices.
4. High-Current Controllers: Drive external pass transistors to support loads exceeding standalone regulator limits.
5. Tracking Controllers: Synchronize multiple rails, ensuring proportional voltage scaling in complex systems.
Purchasing Recommendations:
- Precision & Noise Sensitivity: Prioritize controllers with high PSRR (Power Supply Rejection Ratio) for noise-critical applications like analog sensors or RF systems.
- Thermal Management: Verify thermal shutdown and current-limiting features if operating in high-ambient environments.
- Compatibility: Match controller specifications (e.g., feedback voltage, drive current) with your pass element (MOSFET/BJT).
- Package & Integration: Select thermally efficient packages (e.g., SOIC, DFN) for space-constrained designs, or consider integrated solutions for prototyping simplicity.
Linear Regulator Controllers balance efficiency and simplicity, making them indispensable in precision power delivery choose based on your system s voltage, noise, and thermal constraints.
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SC1548CSK.TR
IC REGULATOR CONTROLLER SOT23
SPX1587AT-2.5/TR
FIXED POSITIVE LDO REGULATOR, 2.
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150MA LOW DROPOUT VOLTAGE REGUL
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INTEGRATED CIRCUIT
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DUAL 150 MA LDO REGULATOR
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FIXED POSITIVE LDO REGULATOR
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COMPACT SYNCHRONOUS BUCK REGULAT
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DUAL LOW-DROPOUT LINEAR REGULATO
MIC5245-3.3BMM TS
150MA MICROCAP CMOS LDO REGULATO
MIC5246-2.85BM5 TS
150 MA MICROCAP CMOS LDO REGULAT
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MICROCAP LDO REGULATOR, CMOS
LM79L12ACZ/TZ
3-TERMINAL NEGATIVE REGULATOR
MIC5245-3.2BM5 TS
150MA MICROCAP CMOS LDO REGULATO
LM2931Z
100MA LOW DROPOUT VOLTAGE REGULA
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ADJ OUTPUT LINEAR REGULATOR
MIC5245-2.6BM5 TS
150 MA MICROCAP CMOS LDO REGULAT