MAX1658

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

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


Please check latest availability status for a specific part variant.

Description

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.
MAX1658, MAX1659: Typical Operating Circuit MAX1658, MAX1659: Typical Operating Circuit Enlarge+

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

Applications/Uses

  • Cell Phones
  • Digital Cordless Phones
  • Electronic Planners
  • Handheld Instruments (PDAs, Palmtops)
  • Modems
  • Palmtop Computers
  • PCMCIA Cards
  • PCS Phones

See parametric specs for Linear Regulators (134)


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
MAX1658 12.716.53.31.25160.65350350602500NoNoNoYes-40 to +85
SOIC (N)/8
$2.35 @1k
MAX1659 5
SOIC (N)/8
$2.28 @1k

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAXSANTAFEEVSYS: Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End
Product Reliability Reports: MAX1658.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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