MAX25232ATCF, MAX25232ATCG

TDFN-EP

(3mm x 3mm)

MAX25232ATCF

MAX25232ATCG

Pin Description

PIN

NAME

FUNCTION

MAX25232A

TCA,

MAX25232A

TCB,

MAX25232A

TCD,

MAX25232A

TCE,

MAX25232A

TCH

MAX25232A

TCF,

MAX25232A

TCG

SPS

SPS

1

Spread-Spectrum Enable. Connect logic-high to enable spread spectrum of

internal oscillator, or logic-low to disable spread spectrum. This pin has a 1MΩ

internal pulldown.

EN

EN

2

High-Voltage-Compatible Enable Input. If this pin is low, the part is off.

BST

BST

3

Bootstrap Pin for HS Driver. It is recommended to use 0.1μF from BST to LX.

SUP

SUP

4

Supply Input. Connect a 4.7μF ceramic capacitor from SUP to PGND.

LX

LX

5

Buck Switching Node. Connect inductor between LX and OUT. See the Inductor

Selection section. If the part is off, this node is high impedance.

PGND

PGND

6

Power Ground. Ground return path for all high-current/high-frequency noisy

signals.

AGND

AGND

7

Analog Ground. Ground return path for all ‘quiet’ signals.

NC

FB

8

Leave this pin unconnected for fixed output voltage options. For MAX25232ATCF

and MAX25232ATCG, use it as a FB pin to set the output voltage.

OUT

OUT

9

Buck Regulator Output-Voltage-Sense Input. Bypass OUT to PGND with ceramic

capacitors.

MAX25232

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