Maxim Integrated Distributor

MAX1750x Step-Down Converters


High-voltage, synchronous step-down DC-DC converter from Maxim


Maxim Integrated's MAX1750x Step-Down ConvertersThe Maxim Integrated MAX17501/MAX17502 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5 V to 60 V input voltage range. The MAX17501 delivers output currents up to 500 mA, while the MAX17502 delivers up to 1 A at output voltages of 0.9 V to 92% VIN. The output voltage is accurate to within ±1.7% over -40°C to +125°C. They are available in a compact, TDFN package.

The devices feature peak-current-mode control with pulse-width modulation (PWM). Users can choose devices with either pulse frequency modulation (PFM) or forced PWM scheme. PFM devices skip pulses at light load for higher efficiency, while forced-PWM devices operate with fixed switching frequency at any load for noise sensitive-applications. The low-resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout.

A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input-voltage level. An open-drain active-low RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage. MAX17501 Datasheet | MAX17502 Datasheet

Applications
  • Automotive
  • Base stations, VOIP, telecom
  • Battery-powered equipment
  • General-purpose PoL systems
  • HVAC and building control
  • Industrial process control

Product Training Module: High Voltage Step-Down Converters, MAX17501 and MAX17502 PTM: High Voltage Step-Down Converters, MAX17501 and MAX17502

Digi-Key P/N Manufacturer P/N Description
MAX17501AATB+-ND MAX17501AATB+ IC REG BUCK SYNC 3.3V .5A 10TDFN
MAX17501BATB+-ND MAX17501BATB+ IC REG BUCK SYNC 5V 0.5A 10TDFN
MAX17501EATB+-ND MAX17501EATB+ IC REG BUCK SYNC 3.3V .5A 10TDFN
MAX17501FATB+-ND MAX17501FATB+ IC REG BUCK SYNC 5V 0.5A 10TDFN
MAX17501GATB+-ND MAX17501GATB+ IC REG BUCK SYNC ADJ 0.5A 10TDFN
MAX17501HATB+-ND MAX17501HATB+ IC REG BUCK SYNC ADJ 0.5A 10TDFN
MAX17501ATEVKIT#-ND MAX17501ATEVKIT# KIT EVAL FOR MAX17501A
MAX17501BTEVKIT#-ND MAX17501BTEVKIT# KIT EVAL FOR MAX17501B
MAX17501ETEVKIT#-ND MAX17501ETEVKIT# KIT EVAL FOR MAX17501E
MAX17501FTEVKIT#-ND MAX17501FTEVKIT# KIT EVAL FOR MAX17501F
MAX17501GTEVKIT#-ND MAX17501GTEVKIT# KIT EVAL FOR MAX17501G
MAX17501HTEVKIT#-ND MAX17501HTEVKIT# KIT EVAL FOR MAX17501H
MAX17502EATB+-ND MAX17502EATB+ IC REG BUCK SYNC 3.3V 1A 10TDFN
MAX17502FATB+-ND MAX17502FATB+ IC REG BUCK SYNC 5V 1A 10TDFN
MAX17502GATB+-ND MAX17502GATB+ IC REG BUCK SYNC ADJ 1A 10TDFN
MAX17502ETEVKIT#-ND MAX17502ETEVKIT# KIT EVAL FOR MAX17502ET
MAX17502FTEVKIT#-ND MAX17502FTEVKIT# KIT EVAL FOR MAX17502FT