LM2630 datasheet(6/14 Pages) NSC

6 / 14 page

Typical Performance Characteristics (Continued)

Connection Diagram and Ordering Information

Pin Description

Name

Function

1SD

Shutdown control input, active low.

SYNC

Oscillator synchronization input. Connect this pin to ground if not used.

PGOOD

A constant monitor on the output voltage. PGOOD will go low if the output voltage

exceeds ±9% of its nominal value. Once PGOOD goes low, it will go high if the output

moves within ±3% of its nominal value.

The soft-start control pin. A capacitor connected from this pin to ground sets the ramp

time to full current output.

COMP

Compensation network connection (connected to the output of the voltage error

amplifier).

Output voltage feedback input (connected to the center of the external resistor divider).

FADJ

Frequency adjustment input.

VREF

The output of the precision reference.

GND

Low-noise analog ground.

CSH

Current-sense positive input.

CSL

Current-sense negative input.

No internal connection.

Oscillator Frequency vs Junction Temperature

DS100120-13

Reference Voltage vs Junction Temperature

DS100120-14

20-Lead TSSOP (MTC)

DS100120-2

Top View

Order Number LM2630MTC-ADJ

See NS Package Number MTC20

LM2630 Datasheet(PDF) 6 Page - National Semiconductor (TI)