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MAX15027 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX15027 Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 10 page 1.425V to 3.6V Input, 1A Low-Dropout Regulators with BIAS Input _______________________________________________________________________________________ 7 Functional Diagram INTERNAL SUPPLY GENERATOR BIAS UVLO IN UVLO CONTROL LOGIC P REF ERROR AMPLIFIER WITH SOFT-START OVERTEMPERATURE PROTECTION MOS DRIVER WITH ILIMIT BIAS IN EN FB SS OUT GND MAX15028 ONLY MAX15027 ONLY REF MAX15027 MAX15028 Detailed Description The MAX15027/MAX15028 low-dropout linear regula- tors operate from input voltages as low as 1.425V and deliver up to 1A of continuous output current with a maximum dropout voltage of only 225mV. The MAX15028 operates with an input voltage as low as 1.425V if the bias voltage (VBIAS) of 3V to 5.5V is available. The power is applied at IN while the control is provided through BIAS input. The current drawn by BIAS is negligible when the LDO goes into shutdown. This feature is especially useful in automotive applica- tions where the BIAS input is derived from an always- on LDO that expects to provide minimal power during the key-off condition. The pMOS output stage can be driven from input volt- ages down to +1.425V without sacrificing stability or transient performance. The output voltage of all the regulators is adjustable from 0.5V to VIN and is ±2% accurate over load and line variations, from -40°C to +125°C. Since these regulators have a pMOS output device, supply current is not a significant function of load or input headroom. |
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Similar Description - MAX15027 |
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