MCP1725 Ver la hoja de datos (PDF) - Microchip Technology

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Fabricante

MCP1725

500 mA, Low Voltage, Low Quiescent Current LDO Regulator

Microchip Technology 

3.6 Output Voltage Sense/Adjust

Input (ADJ/Sense)

3.6.1 ADJ

For adjustable applications, the output voltage is

connected to the ADJ input through a resistor divider

that sets the output voltage regulation value. This

provides the user the capability to set the output

voltage to any value they desire within the 0.8V to 5.0V

range of the device.

3.6.2 Sense

For fixed output voltage versions of the device, the

SENSE input is used to provide output voltage

feedback to the internal circuitry of the MCP1725. The

SENSE pin typically improves load regulation by

allowing the device to compensate for voltage drops

due to packaging and circuit board layout.

MCP1725

3.7 Regulated Output Voltage (VOUT)

The VOUT pin(s) is the regulated output voltage of the

LDO. A minimum output capacitance of 1.0 µF is

required for LDO stability. The MCP1725 is stable with

ceramic, tantalum and aluminum-electrolytic

capacitors. See Section 4.3 “Output Capacitor” for

output capacitor selection guidance.

3.8 Exposed Pad (EP)

The 2x3 DFN package has an exposed pad on the

bottom of the package. This pad should be soldered to

the Printed Circuit Board (PCB) to aid in the removal of

heat from the package during operation. The exposed

pad is at the ground potential of the LDO.

© 2007 Microchip Technology Inc.

DS22026B-page 15

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