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KB3511

Kingbor Technology Co.,Ltd

TEL:(86)0755-26508846 FAX:(86)0755-26509052

PIN FUNCTIONS

voltage from the external resistive divider across the

output. Nominal voltage for this pin is 0.6V.

enables regulator 1, while forcing it to GND causes regu-

lator 1 to shut down.

to GND.

SW1 (Pin 4): Regulator 1 Switch Node Connection to the

GND (Pin 5): Main Ground. Connect to the (–) terminal of

MODE/SYNC (Pin 6): Combination Mode Selection and

Oscillator Synchronization. This pin controls the operation

operation or PWM mode is selected, respectively.

Do not float this pin. The oscillation frequency can

be syncronized to an external oscillator applied to this pin

and pulse skipping mode is automatically selected.

SW2 (Pin 7): Regulator 2 Switch Node Connection to the

POR (Pin 8): Power-On Reset . This common-drain logic

output is pulled to GND when the output voltage is not

within

±8.5% of regulation and goes high after 175ms

when both channels are within regulation.

enables regulator 2, while forcing it to GND causes regu-

lator 2 to shut down.

voltage from the external resistive divider across the

output. Nominal voltage for this pin is 0.6V.

Exposed Pad (GND) (Pin 11): Power Ground. Connect to

soldered to electrical ground on PCB.