ADPL74101

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100V Synchronous Step-Down Controller with Internal Bootstrap Switch

产品模型: 1

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概述

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

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

产品模型: 1

参考资料

数据手册 1

ADPL74101: 100V Synchronous Step-Down Controller with Internal Bootstrap Switch Data Sheet (Rev.0) 01/12/2026

用户手册 1

EVAL-ADPL74101-AZ User Guide: High Voltage Step-Down Controller (Rev.0) 01/12/2026

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产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
ADPL74101ACPZ-RL	28-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys

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High Voltage Step-Down Controller

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产品详情

Evaluation circuit EVAL-ADPL74101-AZ, features the ADPL74101, a 100V step-down synchronous controller. The ADPL74101 features low IQ, up to 1MHz programmable/synchronizable switching frequency, spread spectrum, and a small 28-lead (4mm x 5mm) QFN package. These features allow for a wide variety of applications, including industrial, military, medical, and telecommunications systems.

The EVAL-ADPL74101-AZ operates from a 16V to 72V input voltage range and generates a 12V, 15A output. The ADPL74101 has a precision voltage reference that can generate an output voltage with less than 2% tolerance over the full operating conditions. The EVAL-ADPL74101-AZ is set to a 300kHz switching frequency, which results in a small and efficient circuit. The converter achieves over 94% efficiency with a 15A load at full operating V_IN, with a peak efficiency of over 96%.

This board can be easily modified to regulate output voltages from 0.8V to 60V. The evaluation circuit has been specifically designed with 100V field-effect transistors (FETs); various FETs with similar footprints can be replaced to fit a wide array of applications.

The EVAL-ADPL74101-AZ provides a high-performance, cost-effective solution for generating a 12V output. The ADPL74101 data sheet provides a complete description of this device, including its operation and application information. The data sheet must be read in conjunction with this user guide for EVAL-ADPL74101-AZ.

Design files for this circuit board are available at www.analog.com.

资料

EVAL-ADPL74101-AZ User Guide: High Voltage Step-Down Controller (Rev.0)
2026/1/12

EVAL-ADPL74101-AZ - Schematic
2026/1/12

EVAL-ADPL74101-AZ - Design Files
2026/1/12