Pin Descriptions

Pin #

Pin Name

Pin Function

1

PVIN

Input supply voltage connection to switching FETs — connect the input capacitor between this

pin and PGND directly.

2

VIN

Input supply voltage for control circuits

3

SYNC/PWM

Oscillator synchronization input. Tie to V

enter PSAVE mode at light loads. Apply an external clock signal for frequency synchronization.

4

EN

Enable digital input; a high input enables the SC196, a low disables and reduces quiescent cur-

rent to less than 1μA. In shutdown, LX becomes high impedance.

5

VOUT

Regulated output voltage sense pin — connect to the output capacitor allowing sensing of the

output voltage.

6

ADJ

Output Voltage Adjust and feedback compensation pin - connect resistor divider between this

pin and GND to set the desired output voltage level.

7

MODE

MODE select pin — MODE = V

this function.

8

GND

Ground

9

PGND

Power Ground

10

LX

Inductor connection to the switching FETs

T

THERMAL

PAD

multiple vias.

5

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SC196

PRELIMINARY

POWER MANAGEMENT