1

2

3

4

5

6

7

8

PG

EN

MODE

FB

VOUT

GND

VIN

NC

LMZ20501

www.ti.com

SNVS874C – AUGUST 2012 – REVISED APRIL 2015

6 Pin Configuration and Functions

USIP Package (SIL)

8 Pins

Top View

Pin Functions

PIN

DESCRIPTION

NUMBER

NAME

1

PG

O

Power good flag; open drain. Connect to logic supply through a resistor. High = power good; Low =

power bad. If not used, leave unconnected.

2

EN

I

Enable input. High = On, Low = Off. A valid input voltage, on pin 8, must be present before EN is

asserted. Do not float.

3

MODE

I

Mode selection input. High = forced PWM. Low = AUTO mode, with PFM at light load . Do not float.

4

FB

I

Feedback input to controller. Connect to output through feedback divider.

5

VOUT

P

6

GND

G

Ground for all circuitry. Reference point for all voltages.

7

NC

This pin must be left floating. Do not connect to ground or any other node.

8

VIN

P

Input supply to regulator. Connect to input capacitor(s) as close as possible to the VIN pin and GND

pin of the module.

EP

EP

G

Ground and heat-sink connection. See Layout Guidelines section for more information.

(1)

G = Ground, I = Input, O = Output, P = Power

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