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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LP2975AIMM-5.0/NOPB
IC LNR REG CTRLR 1OUT 8VSSOP
SC339SKTRT
IC LNR REG CTRLR 1OUT SOT23-6
UC2833N
IC LNR REG CTRLR 1OUT 8DIP
UCC3837DTRG4
IC LNR REG CTRLR 1OUT 8SOIC
LP2975IMM-3.3
IC LNR REG CTRLR 1OUT 8VSSOP
LM2574-5.0BWM TR
52KHZ SIMPLE 0.5A BUCK REGULATOR
MIC5270-4.1BM5 TS
MICROCAP NEGATIVE LOW-DROPOUT
UC2836DTRG4
IC LNR REG CTRLR 1OUT 8SOIC
MIC5320-SGYMT
HIGH-PERFORMANCE DUAL 150 MILLAM
AP2160KTR-G1
IC LNR REG CTRLR 1OUT SOT23-6
LM2575-5.0BT L3
52KHZ SIMPLE 1A BUCK REGULATOR
MIC5190BMM-TR
IC LNR REG CTRLR 1OUT 10MSOP
LFC789D25CPWRE4
IC LNR REG CTRLR 2OUT 8TSSOP
LM3210TLE
SWITCHING REGULATOR/CONTROLLER
MC33567D-1G
IC LNR REG CTRLR 2OUT 8SOIC
LP2950CZ-5.0/T3
FIXED POSITIVE LDO REGULATOR
SC1548CSK1.5TRT
IC LNR REG CTRLR 1OUT SOT23-5
LP2975IMM-12/NOPB
IC LNR REG CTRLR 1OUT 8VSSOP
LP2975IMMX-5.0
IC LNR REG CTRLR 1OUT 8VSSOP
UC3834DWG4
IC LNR REG CTRLR 1OUT 16SOIC