MAX1658:350mA, 16.5V Input, Low-Dropout Linear Regulators

Battery-Saving Linear Regulator Consumes Only 30µA and Delivers 350mA

The MAX1658/MAX1659 linear regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature Dual Mode™ operation, which presets the output to 3.3V (MAX1658) or 5V (MAX1659), or permits it to be adjusted between 1.25V and 16V. The regulator supplies up to 350mA, with a typical dropout of 650mV for the MAX1658 and 490mV for the MAX1659. With their p-channel MOSFET pass transistor, these devices maintain a low quiescent current from zero output current to the full 350mA, even in dropout. They support input voltages ranging from 2.7V to 16.5V. The MAX1658/MAX1659 feature a 1µA shutdown mode, reverse battery protection, short-circuit protection, and thermal shutdown. They are available in a special high-power (1.2W), 8-pin SO package designed specifically for compact applications.

Key Features
  • Wide Input Voltage Range: 2.7V to 16.5V
  • Low, 490mV Dropout at 350mA Output Current (MAX1659)
  • 30µA Supply Current
  • 1µA Max Shutdown Current
  • High-Power (1.2W) 8-Pin SO Package
  • Dual Mode Operation Output:
    • Fixed 3.3V (MAX1658)
    • Fixed 5.0V (MAX1659)
    • or Adjustable (1.25V to 16V)
  • Thermal Overload Protection
  • Current-Limit Protection
  • Reverse Battery Protection
MAX1658, MAX1659: Typical Operating Circuit
MAX1658, MAX1659: Typical Operating Circuit
Applications/Uses
  • Cell Phones
  • Digital Cordless Phones
  • Electronic Planners
  • Handheld Instruments (PDAs, Palmtops)
  • Modems
  • Palmtop Computers
  • PCMCIA Cards
  • PCS Phones
DataSheet
titleDownload file
MAX1658-MAX1659 Data SheetMAX1658-MAX1659.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutWatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxtypSee Notes
MAX165812.716.53.31.25160.65350350602500NoNoNoYes-40 to +85SOIC(N)/8$2.17 @1k
MAX16595SOIC(N)/8
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1658C/DNo Longer AvailableDICE SALES,;NA pin;DICE;0°C to +70°CSee data sheet
MAX1658ESANo Longer AvailableMAX1658ESA+SOIC (;8 pin-40°C to +85°CSee data sheet
MAX1658ESA+ActiveSOIC(N),;8 pin;31 mm²-40°C to +85°CLead Free
MAX1658ESA+TActiveSOIC(N),;8 pin;31 mm²-40°C to +85°CLead Free
MAX1658ESA-TNo Longer AvailableMAX1658ESA+TN.SO;8 pin-40°C to +85°CSee data sheet
MAX1658-MAX1659.pdf MAX1659
MAX1658.pdf MAX1658
典型工作电路 MAX1659