Pin Description (continued)

PIN

NAME

FUNCTION

MAX25232A

TCA,

MAX25232A

TCB,

MAX25232A

TCD,

MAX25232A

TCE,

MAX25232A

TCH

MAX25232A

TCF,

MAX25232A

TCG

BIAS

BIAS

10

5V Internal Bias Supply. Connect a 1μF (min) ceramic capacitor to AGND.

SYNC

SYNC

11

Sync Input. If connected to ground or open, skip-mode operation is enabled under

light loads; if connected to BIAS, forced-PWM mode is enabled. This pin has a

1MΩ internal pulldown.

PGOOD

PGOOD

12

Open-Drain Reset Output. External pullup required.

-

—

EP

Exposed Pad. EP must be connected to ground plane on PCB, but is not a

current-carrying path and is only needed for thermal transfer.

MAX25232

www.maximintegrated.com

Maxim Integrated | 11