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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
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The MAX6469–MAX6484 are low-dropout linear regulators with a fully integrated microprocessor reset circuit. Each is available with preset output voltages from +1.5V to +3.3V in 100mV increments and delivers up to 300mA of load current. These devices consume only 82µA of supply current. The low supply current, low dropout voltage, and integrated reset functionality make these devices ideal for battery-powered portable equipment.
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.
Applications
- Bluetooth® Modules/Wireless LAN
- CD/DVD Drives
- Cell Phones/Cordless Phones
- Digital Cameras
- Handheld Instruments (PDAs, Palmtops)
- Notebook Computers
- PCMCIA Cards/USB Devices
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MAX6476
Documentation
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Data Sheet
3
MAX6469-MAX6484: 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit Data Sheet (Rev.6)
Reliability Data
1
96.92K
Documentation
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
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Positive Linear Regulators (LDO)1 |
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PRODUCTION |
150mA, SOT23, Low-Dropout Linear Regulators with Internal Microprocessor Reset Circuit |
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Evaluation Kits 1
MAX6470EVKIT
Evaluation Kit for the MAX6469, MAX6470, MAX6471, MAX6472, MAX6473, MAX6474, MAX6475, MAX6476
Product Detail
The MAX6470 evaluation kit (EV kit) circuit features the MAX6470 low-dropout linear regulator with an integrated microprocessor reset output signal. The circuit provides a preset 3.3V output from a 3.6V to 5.5V input range and delivers 300mA of load current. The MAX6470 EV kit is a fully assembled and tested surface-mount circuit board that accommodates the MAX6470 IC in both the 6-pin SOT23 and 8-pin QFN packages. The EV kit board can also be used to evaluate the MAX6469-MAX6476 linear regulators. For output voltages less than 3.3V, the input voltage range can go down to 2.5V.
Applications
- Bluetooth® Modules/Wireless LAN
- CD/DVD Drives
- Cell Phones
- Cordless Phones
- Digital Still Cameras
- Handheld Instruments (PDAs, Palmtops)
- Notebook Computers
- PCMCIA Cards/USB Devices