(China (Mainland))
Product Summary
The MAX689CSA is a low-dropout linear regulator which operates 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 (b > 100). The applications of the MAX689CSA include High-Efficiency Linear Regulator, Battery-Powered Devices, Portable Instruments, Portable Telephones, Power Supply or Backup Supply for Memory.
Parametrics
MAX689CSA absolute maximum ratings: (1)Input Supply Voltage IN to GND: 12V; (2)Terminal Voltages to GND; (3)PFO (MAX687): -0.3V to VOUT + 0.3V; (4)PFO (MAX688/MAX689): -0.3V to 12V; (5)All Remaining Pins: -0.3V to VIN + 0.3V; (6)PFO Sink Current: 10mA; (7)PFO Source Current (MAX687): 10mA; (8)Storage Temperature Range: -65℃ to +165℃; (9)Lead Temperature (soldering, 10sec): +300℃.
Features
MAX689CSA features: (1)Fixed Outputs: 3.3V (MAX687/MAX688); 3.0V (MAX689); (2)Directly Drives External PNP Transistor; (3)10mA Min Base-Current Drive for >1A Output; (4)Low Dropout Voltage: 100mV Dropout at 650mA Output (FZT749); 40mV Dropout at 200mA Output (FZT749) 0.8V Dropout at 4A Output; (5)Power-Fail Output Monitors the Output Voltage; (6)Automatic, Latched Shutdown when Output Falls Out of Regulation (MAX687); (7)Precision Threshold Shutdown Control (MAX688/MAX689); (8)Low Supply Current: 150μA Operating; <1μA Shutdown; (9)2.7V to 11.0V Supply Range; (10)8-Pin DIP/SO/μMAX Packages; (11)<2mV Line Transient with 3.4V to 3.6V Input; (12)Output Accuracy <±2%.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
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 MAX689CSA |
Maxim Integrated Products |
Low Dropout (LDO) Regulators High-Accuracy LDO |
Data Sheet |
Negotiable |
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MAX689CSA+ |
Maxim Integrated Products |
Low Dropout (LDO) Regulators High-Accuracy LDO |
Data Sheet |
Negotiable |
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MAX689CSA+T |
Maxim Integrated Products |
Low Dropout (LDO) Regulators High-Accuracy LDO |
Data Sheet |
Negotiable |
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MAX689CSA-T |
Maxim Integrated Products |
Low Dropout (LDO) Regulators High-Accuracy LDO |
Data Sheet |
Negotiable |
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