MAX1750x Step-Down Converters

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

Image of 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.

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

MAX1750x Step-Down Converters

ImageManufacturer Part NumberDescriptionAvailable Quantity
MAX17501AATB+ datasheet linkIC REG BCK 3.3V 0.5A SYNC 10TDFNMAX17501AATB+IC REG BCK 3.3V 0.5A SYNC 10TDFN4887 - Immediate
MAX17501AATB+ product page link
MAX17501FATB+ datasheet linkIC REG BUCK 5V 0.5A SYNC 10TDFNMAX17501FATB+IC REG BUCK 5V 0.5A SYNC 10TDFN233 - Immediate
MAX17501FATB+ product page link
MAX17502EATB+ datasheet linkIC REG BUCK 3.3V 1A SYNC 10TDFNMAX17502EATB+IC REG BUCK 3.3V 1A SYNC 10TDFN1337 - Immediate
MAX17502EATB+ product page link
MAX17502ETEVKIT# datasheet linkKIT EVAL FOR MAX17502ETMAX17502ETEVKIT#KIT EVAL FOR MAX17502ET8 - Immediate
20 - Factory Stock
MAX17502ETEVKIT# product page link
MAX17502FTEVKIT# datasheet linkKIT EVAL FOR MAX17502FTMAX17502FTEVKIT#KIT EVAL FOR MAX17502FT7 - Immediate
20 - Factory Stock
MAX17502FTEVKIT# product page link
MAX17501HATB+ datasheet linkIC REG BUCK ADJ 0.5A SYNC 10TDFNMAX17501HATB+IC REG BUCK ADJ 0.5A SYNC 10TDFN71 - Immediate
MAX17501HATB+ product page link
MAX17501EATB+ datasheet linkIC REG BCK 3.3V 0.5A SYNC 10TDFNMAX17501EATB+IC REG BCK 3.3V 0.5A SYNC 10TDFN68 - Immediate
MAX17501EATB+ product page link
MAX17501ETEVKIT# datasheet linkKIT EVAL FOR MAX17501EMAX17501ETEVKIT#KIT EVAL FOR MAX17501E5 - Immediate
50 - Factory Stock
MAX17501ETEVKIT# product page link
MAX17501ATEVKIT# datasheet linkKIT EVAL FOR MAX17501AMAX17501ATEVKIT#KIT EVAL FOR MAX17501A3 - Immediate
35 - Factory Stock
MAX17501ATEVKIT# product page link
MAX17501BTEVKIT# datasheet linkKIT EVAL FOR MAX17501BMAX17501BTEVKIT#KIT EVAL FOR MAX17501B2 - Immediate
25 - Factory Stock
MAX17501BTEVKIT# product page link
MAX17501FTEVKIT# datasheet linkKIT EVAL FOR MAX17501FMAX17501FTEVKIT#KIT EVAL FOR MAX17501F2 - Immediate
50 - Factory Stock
MAX17501FTEVKIT# product page link
MAX17501GTEVKIT# datasheet linkKIT EVAL FOR MAX17501GMAX17501GTEVKIT#KIT EVAL FOR MAX17501G2 - Immediate
22 - Factory Stock
MAX17501GTEVKIT# product page link
MAX17501HTEVKIT# datasheet linkKIT EVAL FOR MAX17501HMAX17501HTEVKIT#KIT EVAL FOR MAX17501H4 - Immediate
45 - Factory Stock
MAX17501HTEVKIT# product page link
MAX17502FATB+ datasheet linkIC REG BUCK 5V 1A SYNC 10TDFNMAX17502FATB+IC REG BUCK 5V 1A SYNC 10TDFN1 - Immediate
MAX17502FATB+ product page link
MAX17501GATB+ datasheet linkIC REG BUCK ADJ 0.5A SYNC 10TDFNMAX17501GATB+IC REG BUCK ADJ 0.5A SYNC 10TDFN15 - Immediate
MAX17501GATB+ product page link
MAX17501BATB+ datasheet linkIC REG BUCK 5V 0.5A SYNC 10TDFNMAX17501BATB+IC REG BUCK 5V 0.5A SYNC 10TDFN0MAX17501BATB+ product page link
MAX17502GATB+ datasheet linkIC REG BUCK ADJ 1A SYNC 10TDFNMAX17502GATB+IC REG BUCK ADJ 1A SYNC 10TDFN0MAX17502GATB+ product page link
Published: 2013-06-03