Product Details
Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
Data Sheet | 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit | Mar 16, 2011 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Key Features
- 3 x 3 UCSP, 6-Pin SOT23, and 8-Pin TDFN Packages
- Preset +1.5V to +3.3V Output (100mV Increments)
- SET Pin for Adjustable Output Voltage
- 75µVRMS LDO Output Voltage Noise (MAX6477–MAX6484)
- ±2.0% Accuracy Over Temperature
- Guaranteed 300mA Output Current
- Low Dropout Voltage
- 55mV at 150mA
- 114mV at 300mA
- 82µA Supply Current, 0.1µA Shutdown Current
- Input Reverse Current, Thermal and Short-Circuit Protection
- Microprocessor Reset with Four Timeout Options
- Push-Pull or Open-Drain Active-Low RESET
- Manual Reset Input
- Remote Feedback Sense
Applications/Uses
- Bluetooth® Modules/Wireless LAN
- CD/DVD Drives
- Cell Phones/Cordless Phones
- Digital Cameras
- Handheld Instruments (PDAs, Palmtops)
- Notebook Computers
- PCMCIA Cards/USB Devices
Description
The MAX6469–MAX6484 include a reset output that indicates when the regulator output drops below standard microprocessor supply tolerances (-7.5% or -12.5% of nominal output voltage). This eliminates the need for an external microprocessor supervisor, while ensuring that supply voltages and clock oscillators have stabilized before processor activity is enabled. Push-pull and open-drain active-low reset outputs are available, with reset timeout periods of 2.5ms, 20ms, 150ms, or 1200ms (min).
The MAX6469/MAX6470/MAX6473–MAX6478/MAX6481–MAX6484 also have a shutdown feature that reduces the supply current to 0.1µA (typ). The MAX6471-MAX6474/MAX6479–MAX6482 offer a manual reset input to assert a microprocessor reset while the regulator output is within specification. The MAX6475/MAX6476/MAX6483/MAX6484 feature a remote feedback sense pin for use with an external NPN transistor for higher-current applications. The MAX6469–MAX6476 are available in 6-pin SOT23 and 8-pin TDFN packages. The MAX6477–MAX6484 are available in a 3 × 3 chip-scale package (UCSP™). All devices are specified for operation from -40°C to +85°C.
Technical Docs
Data Sheet | 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit | Mar 16, 2011 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.