Power Management Integrated Circuits
| Vortragende/r (Mitwirkende/r) | |
|---|---|
| Nummer | 0000003397 |
| Art | Vorlesung mit integrierten Übungen |
| Umfang | 4 SWS |
| Semester | Sommersemester 2026 |
| Unterrichtssprache | English |
| Stellung in Studienplänen | Siehe TUMonline |
| Termine | Siehe TUMonline |
Teilnahmekriterien
Beschreibung
Introduction & Use Cases
– The role of PMICs in electrical systems: placed between the energy source and the electronics
– Key requirements: size, efficiency, reliability, noise performance, cost
– Fundamental topologies:
• Linear regulator (resistive approach)
• Inductor-based DC/DC converter (switch + inductor)
• Switched-capacitor converter (switch + capacitor)
• Hybrid converters (switch + capacitor + inductor)
– Power-management system architectures: multiple rails (e.g., Li-ion battery → DC/DC → analog LDO + digital LDO)
Power Devices & Components
– Power-stage configurations: low-side switch, high-side switch, half-bridge, full-bridge
– Non-ideal effects: RDSon, dropout, parasitic capacitances, body diode
– Loss mechanisms: conduction losses, switching losses
– Passive components: MOS, MOM, MIM capacitors; planar inductors
– Power transistors: DEMOS, DMOS; SOI technologies; latch-up; safe-operating area (SOA); dead-time generation
Linear Regulators – Basics
– Principle: voltage-controlled resistance
– Architecture: power transistor, sense resistor, reference voltage, error amplifier
– Dropout voltage (~100 mV)
– DC metrics: power efficiency, current efficiency, line regulation, load regulation
– Error amplifier specs: gain, slew rate, PSR
– Transient response: step changes in input voltage and load current
Linear Regulators – Advanced Topics
– Voltage-mode vs. current-mode control
– PMOS vs. NMOS power devices
– Stability analysis: poles/zeros, Miller compensation, zero-canceling resistor
– Slew-rate enhancement & dynamic biasing
– Noise & power-supply rejection considerations
– Over-charge protection, capacitor-less LDO designs
Protection; Reference Circuits
– Overvoltage, undervoltage, and overtemperature protection
– Bandgap voltage & current references
– Start-up circuits and power-on-reset
– Short-circuit and over-current protection
Switching Regulators – Fundamentals
– Comparison of switching vs. linear regulation
– Converter topologies: LC vs. capacitive-only
– Synchronous vs. non-synchronous DC/DC
– Voltage-mode vs. current-mode, Buck vs. Boost, PFM vs. PWM, CCM vs. DCM
– Inductive vs. inductorless operation
– Stability considerations
LC Buck Converter
– Inductor sizing & current ripple
– Schematic & operating principle
– Line & load regulation
– Efficiency, stability, noise & PSRR analysis
– Compensator design (Type I/II/III)
LC Boost Converter
– Inductor sizing; current ripple
– Schematic; operating principle
– Line & load regulation
– Efficiency, stability, noise & PSRR analysis
– Comparison to Buck topology
Capacitive Buck Converters (SCVR)
– Series-parallel topologies (Dickson, ladder, Fibonacci)
– Equivalent output resistance
– Flying-capacitor and switch sizing
– Efficiency and regulation methods
Capacitive Boost Converters (Charge Pumps)
– Diode-based vs. transistor-based charge pumps
– Stage cascading & closed-loop control
Near-Field Wireless Power Transfer
– Principles: electromagnetic vs. electrostatic induction
– Basic architectures; operating frequencies
– Near-field vs. far-field applications
Far-Field Wireless Power Transfer; RF Energy Harvesting
– RF energy harvesting for low-power IoT: impedance matching, rectification, MPPT
– RF path loss and power budgeting
– Full chain: RFEH → Boost → MPPT → Buck → LDO
– Far-field application examples
– The role of PMICs in electrical systems: placed between the energy source and the electronics
– Key requirements: size, efficiency, reliability, noise performance, cost
– Fundamental topologies:
• Linear regulator (resistive approach)
• Inductor-based DC/DC converter (switch + inductor)
• Switched-capacitor converter (switch + capacitor)
• Hybrid converters (switch + capacitor + inductor)
– Power-management system architectures: multiple rails (e.g., Li-ion battery → DC/DC → analog LDO + digital LDO)
Power Devices & Components
– Power-stage configurations: low-side switch, high-side switch, half-bridge, full-bridge
– Non-ideal effects: RDSon, dropout, parasitic capacitances, body diode
– Loss mechanisms: conduction losses, switching losses
– Passive components: MOS, MOM, MIM capacitors; planar inductors
– Power transistors: DEMOS, DMOS; SOI technologies; latch-up; safe-operating area (SOA); dead-time generation
Linear Regulators – Basics
– Principle: voltage-controlled resistance
– Architecture: power transistor, sense resistor, reference voltage, error amplifier
– Dropout voltage (~100 mV)
– DC metrics: power efficiency, current efficiency, line regulation, load regulation
– Error amplifier specs: gain, slew rate, PSR
– Transient response: step changes in input voltage and load current
Linear Regulators – Advanced Topics
– Voltage-mode vs. current-mode control
– PMOS vs. NMOS power devices
– Stability analysis: poles/zeros, Miller compensation, zero-canceling resistor
– Slew-rate enhancement & dynamic biasing
– Noise & power-supply rejection considerations
– Over-charge protection, capacitor-less LDO designs
Protection; Reference Circuits
– Overvoltage, undervoltage, and overtemperature protection
– Bandgap voltage & current references
– Start-up circuits and power-on-reset
– Short-circuit and over-current protection
Switching Regulators – Fundamentals
– Comparison of switching vs. linear regulation
– Converter topologies: LC vs. capacitive-only
– Synchronous vs. non-synchronous DC/DC
– Voltage-mode vs. current-mode, Buck vs. Boost, PFM vs. PWM, CCM vs. DCM
– Inductive vs. inductorless operation
– Stability considerations
LC Buck Converter
– Inductor sizing & current ripple
– Schematic & operating principle
– Line & load regulation
– Efficiency, stability, noise & PSRR analysis
– Compensator design (Type I/II/III)
LC Boost Converter
– Inductor sizing; current ripple
– Schematic; operating principle
– Line & load regulation
– Efficiency, stability, noise & PSRR analysis
– Comparison to Buck topology
Capacitive Buck Converters (SCVR)
– Series-parallel topologies (Dickson, ladder, Fibonacci)
– Equivalent output resistance
– Flying-capacitor and switch sizing
– Efficiency and regulation methods
Capacitive Boost Converters (Charge Pumps)
– Diode-based vs. transistor-based charge pumps
– Stage cascading & closed-loop control
Near-Field Wireless Power Transfer
– Principles: electromagnetic vs. electrostatic induction
– Basic architectures; operating frequencies
– Near-field vs. far-field applications
Far-Field Wireless Power Transfer; RF Energy Harvesting
– RF energy harvesting for low-power IoT: impedance matching, rectification, MPPT
– RF path loss and power budgeting
– Full chain: RFEH → Boost → MPPT → Buck → LDO
– Far-field application examples
Inhaltliche Voraussetzungen
Electronic circuits.
Analog and mixed-signal electronics.
Analog and mixed-signal electronics.
Lehr- und Lernmethoden
Throughout the semester, core power-management IC principles and theoretical frameworks are introduced in weeklylectures. Each week, students will receive self-study exercises—drawn from the lecture materials and selectedreference papers—to deepen their understanding. These exercises are then reviewed and discussed in dedicatedproblem-solving sessions with Q&A. In addition, students are expected to engage in independent study of theprovided lecture notes, tutorials and research articles to fully master the course content.