MAX1680ESA

125mA, Frequency-Selectable, Switched-Capacitor Voltage Converter, 3.5Ω Output Impedance, 90% Efficiency

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PartNumber:: MAX1680ESA

Brand:: Maxim Integrated Products - Maxim | Pack: SOP | D/C: 08+

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Products Upload time: 2011-08-08

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Product Summary

The MAX1680ESA inductorless switched-capacitor voltage converters either invert an input voltage of +2.0V to +5.5V or double it while supplying up to 125mA output current. They have a selectable-frequency option that allows the use of small capacitors: 4.7μF(MAX1680), 1μF (MAX1681). With their high output current capability, these charge-pump devices are suitable replacements for inductor-based regulators, which require more expensive external components and additional board space. The MAX1680ESA equivalent output resistance (typically 3.5Ω) allows them to deliver as much as 125mA with only a 440mV drop. A shutdown feature reduces quiescent current to less than 1μA. The MAX1680ESA are available in 8-pin SO packages.

Parametrics

MAX1680ESA absolute maximum ratings: (1)IN: -0.3V to +6V; (2)LV: (VOUT - 0.3V) to (VIN + 0.3V); (3)CAP+: -0.3V to (VIN + 0.3V); (4)SHDN, FSEL: (VLV - 0.3V) to (VIN + 0.3V); (5)OUT, CAP-: -6V to 0.3V; (6)Continuous Output Current: 135mA; (7)Output Short-Circuit Duration to GND: 1sec; (8)Continuous Power Dissipation (TA = +70℃); (9)SO (derate 5.88mW/℃ above +70℃): 471mW; (10)Operating Temperature Range: -40℃ to +85℃; (11)Junction Temperature: +150℃; (12)Storage Temperature Range: -65℃ to +160℃; (13)Lead Temperature (soldering, 10sec): +300℃.

Features

MAX1680ESA features: (1)Selectable Switching Frequencies: 125kHz/250kHz (MAX1680); 500kHz/1MHz (MAX1681); (2)Allow Use of Small Capacitors (1μF for the MAX1681); (3)125mA Output Current; (4)3.5Ω Output Impedance; (5)1μA Logic-Controlled Shutdown; (6)Configurable as Voltage Inverters or Doublers; (7)+2.0V to +5.5V Input Voltage Range; (8)Available in 8-Pin SO Packages; (9)90% Efficiency.