ADPL74101

RECOMMENDED FOR NEW DESIGNS

100V Synchronous Step-Down Controller with Internal Bootstrap Switch

Analog Devices ADPL74101 Product Info

10 February 2026 5

Features

Wide V_IN Range: 4V to 100V
Wide output voltage range: 0.8V ≤ V_OUT ≤ 60V
Internal Bootstrap Switch for the High-Side Gate Driver Stage
Accurate Adjustable Driver Voltage with UVLO Protection
Selectable Continuous, Pulse-Skipping, or Burst Mode Operation at Light Loads

Programmable Output Voltage with VPRG Pin (5V or 12V)
Current Limit Foldback during Short Fault
Low Operating I_Q: 5μA (48V_IN to 5V_OUT)
Programmable Frequency (100kHz to 1MHz)
Spread Spectrum Frequency Modulation
28-Lead (4mm × 5mm), QFN Package

Part details & applications

The ADPL^®74101 is a high-performance step-down DC-to-DC controller that drives all N-channel synchronous metal-oxide-semiconductor field-effect transistor (MOSFET) power stages from input voltages up to 100V.

The ADPL74101 features an adjustable gate-drive voltage from 4V to 5.5V, ideal for driving logic-level MOSFETs.

The internal smart bootstrap switch avoids the need for an external diode. The very low no-load quiescent current extends operating runtime in battery-powered systems. The MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode at light loads.

The ADPL74101 additionally features spread spectrum operation, which significantly reduces the peak radiated and conducted noise on both the input and output supplies, making it easier to comply with electromagnetic interference (EMI) standards.

APPLICATIONS

Industrial Power Systems
Military Avionics and Medical Systems
Telecommunications Power Systems

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