Allicdata Part #: | MAX861CUA+-ND |
Manufacturer Part#: |
MAX861CUA+ |
Price: | $ 2.98 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC REG SWTCHD CAP INV 50MA 8UMAX |
More Detail: | Charge Pump Switching Regulator IC Positive or Neg... |
DataSheet: | MAX861CUA+ Datasheet/PDF |
Quantity: | 316 |
1 +: | $ 2.70270 |
10 +: | $ 2.56788 |
25 +: | $ 1.80180 |
50 +: | $ 1.71171 |
100 +: | $ 1.30410 |
250 +: | $ 1.23891 |
500 +: | $ 1.16703 |
Voltage - Output (Min/Fixed): | -Vin, 2Vin |
Base Part Number: | MAX861 |
Supplier Device Package: | 8-uMAX |
Package / Case: | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | 0°C ~ 70°C (TA) |
Synchronous Rectifier: | No |
Frequency - Switching: | 13kHz, 100kHz, 250kHz |
Current - Output: | 50mA |
Voltage - Output (Max): | -- |
Series: | -- |
Voltage - Input (Max): | 5.5V |
Voltage - Input (Min): | 1.5V, 2.5V |
Number of Outputs: | 1 |
Output Type: | Fixed |
Topology: | Charge Pump |
Output Configuration: | Positive or Negative |
Function: | Ratiometric |
Part Status: | Active |
Packaging: | Tube |
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The MAX861CUA+ is a monolithic DC-DC switching voltage regulator designed to serve multiple applications. This device is ideal for powering low-voltage circuits that are space-sensitive. It features built-in MOSFET, power Schottky diode, low-dropout linear regulator, and voltage reference in a compact 8-pin package.
The MAX861CUA+ operates with input voltages ranging from 2.2 V to 5.5 V and can deliver output voltages down to 1.2 V. It has an adjustable output current up to 600 mA and can deliver up to 400 mW. It has a low output-voltage ripple and can provide an instantaneous output current up to 1.2 A. The MAX861CUA+ also features an internal soft-start that reduces inrush current at start-up and an integrated current-limit protection for load transients.
The main application of the MAX861CUA+ is powering low-voltage circuits with low-voltage requirements. It is ideal for powering microprocessors, ASICs, DSPs, and memory banks in consumer, computer, telecommunications, automotive, and industrial applications. In automotive applications, the MAX861CUA+ is ideal for powering DC-DC converters, microcontrollers, and instrument clusters.
The working principle of the MAX861CUA+ is based on an internal AC inductor and an external capacitor. When the input voltage is applied, the internal MOSFET switch is turned on and energizes the internal AC inductor that is connected to the external capacitor. When the voltage increases beyond the threshold, the MOSFET turn off and the inductor is discharged into the output capacitor. This cycle is then repeated, resulting in a constant output voltage.
Furthermore, the MAX861CUA+ includes an internal low-dropout linear regulator for tight load regulation at low load current. Upon start-up, the internal soft-start feature reduces inrush current and eliminates the need for external protection circuitry. The MAX861CUA+ also has an integrated current-limit protection that can protect the load against transient current peaks.
In conclusion, the MAX861CUA+ is designed specifically for power circuits requiring low voltages and is optimized for multiple applications where size and efficiency are of utmost importance. Its features such as internal MOSFET, power Schottky diode, low-dropout linear regulator, and voltage reference, ensure good efficiency and reliability. Its built-in soft-start and current-limit protection provide additional safety.
The specific data is subject to PDF, and the above content is for reference
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