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MAXIM MAX748AEWE+

Manufacturer
MAXIM
MPN
MAX748AEWE+
LCSC Part #
C1355809
Packaging
SOIC-16-300mil
Customer #
Key Attributes
180kHz Step-down type Fixed 3.3V 500mA SOIC-16-300mil Voltage Regulators - DC DC Switching Regulators RoHS
DatasheetMAXIM MAX748AEWE+
RoHS Compliance1 documents available
Alternative Parts1
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerMAXIM
PackagingSOIC-16-300mil
Operating Temperature-40℃~+85℃@(TA)
Frequency - Switching180kHz
FunctionStep-down type
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Overcurrent Protection;Adjustable soft-start;External compensation
TopologyBuck
Output TypeFixed
Operating Voltage3.3V~16V
Switch tube (built-in/external)Built-in
Output Voltage3.3V
Output Current500mA
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Introduction

AI Translation

The MAX748A/MAX763A are 3.3V -output CMOS, stepdown switching regulators. The MAX748A accepts inputs from 3.3V to 16V and delivers up to 500mA. The MAX763A accepts inputs between 3.3V and 11V and delivers up to 500mA. Typical efficiencies are 85% to 90%. Quiescent supply current is 1.4mA (MAX763A), and only 0.2μA in shutdown. Pulse-width-modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±5% over line, load, and temperature variations. Fixed-frequency switching allows easy filtering of output ripple and noise, as well as the use of small external components. A 22μH inductor works in most applications, so no magnetics design is necessary. The MAX748A/MAX763A also feature cycle-by-cycle current limiting, overcurrent limiting, undervoltage lockout, and programmable soft-start protection. The MAX748A is available in 8-pin DIP and 16-pin wide SO packages; the MAX763A comes in 8-pin DIP and SO packages.

Features

AI Translation
  • Up to 500mA Load Currents
  • Guaranteed 159kHz to 219.5kHz Current-Mode PWM
  • 85% to 90% Efficiencies
  • 1.7mA Quiescent Current (MAX748A)
  • 1.4mA Quiescent Current (MAX763A)
  • 0.2μA Shutdown Supply Current
  • 22μH Preselected Inductor Value; No Component Design Required
  • Overcurrent, Soft-Start, and Undervoltage Lockout Protection
  • Cycle-by-Cycle Current Limiting
  • 8-Pin DIP/SO Packages (MAX763A)

Applications

AI Translation
  • 5V-to-3.3V Converters
  • Cellular Phones
  • Portable Instruments
  • Hand-Held Computers
  • Computer Peripherals