›

MAX5035

1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter

Please check latest availability status for a specific part variant.

Overview

Description

The MAX5035 easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load. This pulse-width modulated (PWM) converter operates at a fixed 125kHz switching frequency at heavy loads, and automatically switches to pulse-skipping mode to provide low quiescent current and high efficiency at light loads. The MAX5035 includes internal frequency compensation simplifying circuit implementation. The device uses an internal low-on-resistance, high-voltage, DMOS transistor to obtain high efficiency and reduce overall system cost. This device includes undervoltage lockout, cycle-by-cycle current limit, hiccup mode output short-circuit protection, and thermal shutdown.

The MAX5035 delivers up to 1A output current. The output current may be limited by the maximum power dissipation capability of the package. External shutdown is included, featuring 10µA (typ) shutdown current. The MAX5035A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5035D/E versions have an adjustable output voltage from 1.25V to 13.2V.

The MAX5035 is available in space-saving 8-pin SO and 8-pin plastic DIP packages and operates over the automotive (-40°C to +125°C) temperature range.

MAX5035: Typical Operating Circuit

Enlarge+

Key Features

Wide 7.5V to 76V Input Voltage Range
Fixed (3.3V, 5V, 12V) and Adjustable (1.25V to 13.2V) Versions
1A Output Current
Efficiency Up to 94%
Internal 0.4Ω High-Side DMOS FET
350µA Quiescent Current at No Load, 10µA Shutdown Current
Internal Frequency Compensation
Fixed 125kHz Switching Frequency
Thermal Shutdown and Short-Circuit Current Limit
8-Pin SO and PDIP Packages

Applications/Uses

Automotive
Consumer Electronics
Distributed Power
Industrial

Parametric Specs

Part Number

V_IN
(V)

V_OUT1
(V)

Preset V_OUT
(V)

Output Adjust. Method

I_OUT1
(A)

Switch Type

DC-DC Outputs

Oper. Freq.
(kHz)

Package/Pins

Budgetary
Price

min

max

min

max

See Notes

MAX5035

7.5

1.25

13.2

3.3

Preset

Resistor

Internal

125

PDIP/8

SOIC (N)/8

$1.89 @1k

See All Step-Down Switching Regulators (389)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX5035EVKIT: MAX5035 Evaluation Kit

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

Order

Status:

Package:

Temperature:

Related Resources

New Products

MAX20473
Low-Voltage Synchronous Boost Converter

Synchronous Boost Converter
3.0V to 4.0V Operating Supply Voltage
True Output Shutdown

High Precision

±1.5% Output-Voltage Accuracy
93V ±2% Undervoltage Monitoring
107V ±2% Overvoltage Monitoring

Robust for the Automotive Environment

Current-Mode Control, Forced-PWM, and Skip Operation
Overtemperature and Overcurrent Protection
12-Pin (3mm × 3mm) TDFN

MAX17662
3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX77504
14V Input, 3A High-Efficiency Buck Converter in WLP or QFN

3A Single-Channel Buck Regulator
2.6V to 14V Input Voltage
0.6V to 6V Output Voltage Range

MAX20458
36V Boost Controller with 3.5A Synchronous Buck Converter For Automotive Applications

Meets Stringent OEM Module Power Consumption and Performance Specifications
Enables Crank-Ready Designs
EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX20057
36V Boost Controller with Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

Meets Stringent OEM Module Power Consumption and Performance Specifications
Enables Crank-Ready Designs
Integration and Thermally Enhanced Packages Save Board Space and Cost

MAX17631
4.5V to 36V, 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX17634A
4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX17634B
4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX17634C
4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX77501
110V_PK-PK High-Efficiency Piezo Haptic Actuator Boost Driver

110V_PK-PK Haptic Waveforms Generation
Optimized for up to 2µF Haptic Piezo Actuator
2.8V to 5.5V Input Supply Range

MAX20457
36V Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

Meets Stringent OEM Module Power Consumption and Performance Specifications
Enables Crank-Ready Designs
EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input-Voltage Range

MAXM17536
4.5V to 60V, 4A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
Saves Board Space in Space-Constrained Applications
Offers Flexibility for Power-Design Optimization

MAX17576
4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX20412
Automotive Low-Voltage 2-Channel Step-Down Controller

2-Channel, High-Efficiency DC-DC Controller in a Small Solution Size
High-Precision Regulator for Applications Processors
Low-Noise Features Reduce EMI

MAX20343
Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

Extend System Run Time
Low, Continuous Noise Profile
Adaptable Load Transient Response

MAX20004E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

Multiple Functions for Small Size
High Precision
Robust for the Automotive Environment

MAX20006E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

Multiple Functions for Small Size
High Precision
Robust for the Automotive Environment

MAX20008E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

Multiple Functions for Small Size
High Precision
Robust for the Automotive Environment

MAX17630
4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX20011
Automotive Single 8A/12A Step-Down Converter with High Efficiency

High-Efficiency DC-DC Converter
Up to 12A peak output current:
Differential Remote Voltage Sensing

MAX15158Z
High-Voltage Multiphase Boost Controller

Wide Operating Range
Integration Reduces Design Footprint
Robust Fault Protection Improves Quality and Reliability

MAX20079
Automotive 36V 3.5A Buck Converter with 3.5μA I_Q

Synchronous DC-DC Converter with Integrated FETs
Small Solution Size Saves Space
PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20026, MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

High-Integration Shrinks Solution Size
Performance Designed for Automotive Point-of-Load Regulation
Low-Noise Features Improve EMI Performance

MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

High-Integration Shrinks Solution Size
Performance Designed for Automotive Point-of-Load Regulation
Low-Noise Features Improve EMI Performance

MAX20801
MPP Tracking DC-DC Converter

Performs MPPT on 20-24 Series Connected PV Cells
Fast MPPT Reacts Quickly to Changing Conditions
Integrated Voltage-Limiting Clamps Output Voltage

MAX20800
MPP Tracking DC-DC Converter

Performs MPPT on 20-24 Series Connected PV Cells
Fast MPPT Reacts Quickly to Changing Conditions
Integrated Voltage-Limiting Clamps Output Voltage

MAX20059
72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

Synchronous DC-DC Converters with Integrated FETs
Flexibility
Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAX20058
60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

Synchronous DC-DC Converters with Integrated FETs
Flexibility
Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

Type	ID	Title
User Guide	5861	EE-SIM Design and Simulation Environment User Guide
Tutorial	4701	Introduction to Programmable Logic Controllers (PLCs) and the Operational Function of Main System Modules
App Note	4413	Sequencing Circuit Provides Pseudo Voltage Tracker
Tutorial	3740	How to Generate Auxiliary Supplies from a Positive Buck DC-DC Converter
App Note	3668	High-Efficiency Current Drive for High-Brightness LEDs

Technical Docs

Reference Designs

Type	ID	Title
Evaluation Board	4131	MAX5035EVKIT MAX5035 Evaluation Kit