MAX5035

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

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Status Explanations for product status codes

Part Number Status
MAX5035 Active: In Production. See Ordering Information for details.

Description

  Create a design and simulate with EE-Sim: [MAX5035]

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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 5 (PDF, 288kB)
Send this datasheet to any email addressE-Mail
An evaluation kit is available: MAX5035EVKIT

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
   

Key Specifications:

Step-Down Switching Regulators
Part Number VIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Preset VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Output Adjust. Method DC-DC Outputs Oper. Freq.
(kHz)
Design Tools Package/Pins Smallest Available Pckg.
(mm2)
Budgetary Price
min max min max max w/pins See Notes
MAX5035  7.5 76 1.25 13.2
3.3
5
12
1 1
Preset
Resistor
1 125 EE-Sim
PDIP(N)/8
SOIC(N)/8
30.9 $1.75 @1k
See All Step-Down Switching Regulators (284)
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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX5035: Typical Operating Circuit
Typical Operating Circuit

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Information Index

Document Ref.: 19-2988 Rev 5; 2011-05-27
This page last modified: 2011-05-27




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