Controllers & monolithic regs across buck, boost and buck-boost: ultralow-IQ, wide-VIN, multiphase, CC/LED, GaN/SiC-ready, digital PMBus; plus cross-cutting topics such as sync/EMI, loop compensation, light-load modes, protection, sequencing, telemetry, layout/EMI, remote sense, sharing and power-path priorities.
Buck (Step-Down)
Synchronous Buck Controller
HS/LS MOSFET drive, peak/valley CMC, hiccup/latch and free MOSFET/inductor selection.
Monolithic Buck Regulator
Integrated FETs, SS/PG, PFM/skip, built-in comp and programmable frequency.
Multiphase Buck (High Current)
Phase balancing, dynamic share, D-LAV/AVP transients and scalable phases.
Ultralow-IQ Buck (Battery)
µA quiescent, PFM/auto-save, deep dropout sustain with UVLO guards.
Wide-VIN Buck (e.g., 4.5–60 V)
24/48 V industrial/auto readiness, surge survival and spread-spectrum EMI.
CC / Load-Tracking Buck
Constant-current loop with remote sense for LEDs/batteries/lasers.
Buck + Post-LDO
Pre-regulate then low-noise LDO; PSRR/noise plus sequencing/tracking.
COT / Valley-Switching Buck
Fast transients, inherent feed-forward and high ratio efficiency.
GaN/SiC-Ready Buck Driver
Fast gate drive, Miller clamp, dv/dt suppression and SR pairing.
Digital Buck w/ PMBus
On-line loop/threshold config, telemetry/black-box and scriptable sequencing.
Boost (Step-Up)
Synchronous Boost Controller
High efficiency with forward/reverse blocking, soft-start and ILIM; external FETs.
Monolithic Boost Regulator
Integrated switch, programmable fSW, UVLO/OVP and PFM at light load.
Ultra-Low-VIN / Cold-Start Boost
Starts from tens of mV for harvesting; optional MPPT/impedance match.
Boost with Bypass / OR-ing
Seamless switchover, holdup and priority with reverse blocking.
High-Voltage Bias Boost
Hundreds-volt outputs for display/sensor bias with soft turn-off & OVP clamp.
LED Constant-Current Boost
Open/short detect, line/temp comp and PWM/analog dimming control.
Buck-Boost
4-Switch Non-Inverting Buck-Boost
Seamless cross-over across VIN/VOUT with glitch-free mode changes.
Single-Inductor BB (SEPIC/Zeta)
SEPIC CV/CC with coupling cap; gentle start-up current limiting.
Inverting Buck-Boost (−V Rail)
Generates negative rails; soft-start; dual CV/CC loops for analog bias.
Battery Buck-Boost (Portables)
Wide battery coverage with PFM/auto-save and system power-path control.
High-Power Buck-Boost Controller
External FETs, parallel phases, transient tuning and thermal/current telemetry.
Digital-Programmable Buck-Boost
Cable-drop comp, rail tracking/sequencing and PMBus/I²C parameterization.
Cross-Cutting Blocks & Design Aids
Freq/Sync & Spread Spectrum
External sync, spread-spectrum EMI and beat-interference avoidance.
Loop Compensation & Stability
Peak/valley CMC, slope comp, feed-forward/load-line and Bode hooks.
Light-Load Efficiency Modes
PFM/hiccup/skip, SR-off and burst-mode threshold strategies.
Protection Set
OCP/OVP/UVP/OTP with fast-short shutdown, hiccup/latch and timers.
Start-Up & Sequencing
Soft-start/pre-bias starts, rail tracking/dependencies, PG/RESET and power-down.
Telemetry & Health
V/I/T capture, black-box events and lifetime/stress counters.
EMI & Layout Aids
Minimize hot loops, shield SW nodes, RC snubbers/boot-R and copper/ground partitioning.
Remote Sense & Cable Drop Comp
Differential sensing and line-drop compensation for long-line PoL regulation.
Parallel & Current Sharing
Master/slave or autonomous share, interleaving, thermal balance and fault bypass.
Power Path & Priority
Ideal-diode reverse blocking, priority arbitration, holdup and fast switchover.
