LMZ10501 Datasheet, PDF (3/22 Pages) National Semiconductor (TI) – 1A SIMPLE SWITCHER® Nano Module with 5.5V Maximum Input Voltage

Connection Diagram
NS Package Number SE08A
30124720
Order Information
Order Number
LMZ10501SEE
LMZ10501SE
LMZ10501SEX
Package Marking (Note)
XVS SP
XVS SP
XVS SP
Supplied As
250 units, Tape-and-Reel
1000 units, Tape-and-Reel
3000 units, Tape-and-Reel
Note: The actual physical placement of the package marking will vary from part to part. The package marking “X” designates the date code. “V” is a NSC internal
code for die traceability. Both will vary in production. “S” designates device type as switcher and “SP” identifies the device (part number).
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
Name
EN
VCON
FB
SGND
VOUT
PGND
VIN
VREF
PAD
Description
Enable Input. Set this digital input higher than 1.2V for normal operation. For shutdown, set low. Pin is
internally pulled up to VIN and can be left floating for always-on operation.
Output voltage control pin. Connect to analog voltage from resisitve divider or DAC/controller to set the
VOUT voltage. V_OUT = 2.5 x V_CON. Connect a small (470pF) capacitor from this pin to SGND to provide
noise filtering.
Feedback of the error amplifier. Connect directly to output capacitor to sense V_OUT.
Ground for analog and control circuitry. Connect to PGND at a single point.
Output Voltage. Connected to one terminal of the integrated inductor. Connect output filter capacitor
between VOUT and PGND.
Power ground for the power MOSFETs and gate-drive circuitry.
Voltage supply input. Connect ceramic capacitor between VIN and PGND as close as possible to these
two pins. Typical capacitor values are between 4.7µF and 22µF.
2.35V voltage reference output. Typically connected to VCON pin through a resistive divider to set the
output voltage.
The 3 pads underneath the module are not internally connected to any node. These pads should be
connected to the ground plane for improved thermal performance.
www.national.com
2