LMZ13608 Datasheet, PDF (4/24 Pages) Texas Instruments – SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage

Pin Descriptions
Pin Name Description
1, 2 VIN Supply input — Nominal operating range is 6V to 36V . A small amount of internal capacitance is contained within the
package assembly. Additional external input capacitance is required between this pin and PGND.
3, 5, 6 AGND Analog Ground — Reference point for all stated voltages. Must be externally connected to EP/PGND.
4
EN Enable — Input to the precision enable comparator. Rising threshold is 1.274V typical. Once the module is enabled,
a 20 uA source current is internally activated to accommodate programmable hysteresis.
7
FB Feedback — Internally connected to the regulation, over-voltage, and short-circuit comparators. The regulation
reference point is 0.8V at this input pin. Connect the feedback resistor divider between the output and AGND to set
the output voltage.
8
SS Soft-Start/Track input — To extend the 1.6 mSec internal soft-start connect an external soft start capacitor. For tracking
connect to an external resistive divider connected to a higher priority supply rail. See applications section.
9
NC No Connect. This pin must remain floating, do not ground.
10, VOUT Output Voltage — Output from the internal inductor. Connect the output capacitor between this pin and PGND.
11
EP PGND Exposed Pad / Power Ground Electrical path for the power circuits within the module. — NOT Internally connected to
AGND / pin 5. Used to dissipate heat from the package during operation. Must be electrically connected to pin 5 external
to the package.
3
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