MIC2875 Datasheet, PDF (11/24 Pages) Microchip Technology – 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect

MIC2875
3.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
Pin Number
Fixed Output
Pin Number
Adj. Output
Pin Name
Description
1
1
SW Boost Converter Switch Node: Connect the inductor between
IN and SW pins.
2
2
PGND Power Ground: The power ground for the synchronous boost
DC/DC converter power stage.
3
3
IN
Supply Input: Connect at least 1 μF ceramic capacitor between
IN and AGND pins.
4
4
AGND Analog Ground: The analog ground for the regulator control
loop.
5
—
OUTS Output Voltage Sense Pin: For output voltage regulation in fixed
voltage version. Connect to the boost converter output.
—
5
FB Feedback Pin: For output voltage regulation in adjustable
version. Connect to the feedback resistor divider.
6
6
EN Boost Converter Enable: When this pin is driven low, the IC
enters shutdown mode. The EN pin has an internal 2.5 MΩ
pull-down resistor. The output is disabled when this pin is left
floating.
7
7
/PG Open Drain Power Good Output (Active Low): The /PG pin is
high impedance when the output voltage is below the power
good threshold and becomes low once the output is above the
power good threshold. The /PG pin has a typical R_DS(ON) = 90Ω
and requires a pull up resistor of 1 MΩ. Connect /PG pin to
AGND when the /PG signal is not used.
8
8
OUT Boost Converter Output.
EP
EP
ePad Exposed Heat Sink Pad. Connect to AGND for best thermal
performance.
 2015 Microchip Technology Inc.
DS20005549A-page 11