MAX6897AALT+T IC SUPERVISOR 1 CHANNEL 6UDFN Analog Devices Inc./Maxim Integrated
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Detailed Product Description
Product Details
General DescriptionThe MAX687/MAX688/MAX689 low-dropout linear regulators operate with an input-to-output voltage differential limited only by an external PNP transistor. Outputs are fixed at 3.3V (MAX687/MAX688) or 3.0V (MAX689). The only external components required are a PNP pass transistor and output, compensation, and bypass capacitors. Base drive to the external transistor is at least 10mA, permitting output currents to exceed 1A when using high-gain transistors (β > 100). Output current limiting is implemented by limiting the external transistor’s base current. Output voltage monitoring and shutdown functions are included.
Features♦ Fixed Outputs:3.3V (MAX687/MAX688) 3.0V (MAX689) ♦ Directly Drives External PNP Transistor ♦ 10mA Min Base-Current Drive for >1A Output ♦ Low Dropout Voltage: 100mV Dropout at 650mA Output (FZT749) 40mV Dropout at 200mA Output (FZT749) 0.8V Dropout at 4A Output ♦ Power-Fail Output Monitors the Output Voltage ♦ Automatic, Latched Shutdown when Output Falls Out of Regulation (MAX687) ♦ Precision Threshold Shutdown Control (MAX688/MAX689) ♦ Low Supply Current: 150µA Operating <1µA Shutdown ♦ 2.7V to 11.0V Supply Range ♦ 8-Pin DIP/SO/µMAX Packages ♦ <2mV Line Transient with 3.4V to 3.6V Input ♦ Output Accuracy <±2%
ApplicationsHigh-Efficiency Linear RegulatorBattery-Powered Devices Portable Instruments Portable Telephones Power Supply or Backup Supply for Memory
Specifications
Functional compatible componentForm,Package,Functional compatible component
DescriptionsSupervisor Open Drain or Open Collector 1 Channel 6-uDFN (1.5x1.0) Supervisory Circuits Adjustable Sequencer/Supervisor |
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