Datasheet

LM2653
www.ti.com SNVS050E –NOVEMBER 1999–REVISED APRIL 2013
CONNECTION DIAGRAM
Figure 14. 16-Lead TSSOP (PW)
See Package Number PW0016A
PIN DESCRIPTIONS
Pin Name Function
1-2 SW Switched-node connection, which is connected with the source of the internal high-side MOSFET.
3-5 V
IN
Main power supply input pin. Connected to the drain of the high-side MOSFET.
6 V
CB
Bootstrap capacitor connection for high-side gate drive.
7 AV
IN
Input voltage for control and driver circuits.
8 SD(SS) Shutdown and Soft-start control pin. Pulling this pin below 0.3V shuts off the regulator. A capacitor
connected from this pin to ground provides a control ramp of the input current. Do not drive this pin
with an external source or erroneous operation may result.
9 FB Output voltage feedback input. Connected to the output voltage.
10 COMP Compensation network connection. Connected to the output of the voltage error amplifier.
11 PGOOD A constant monitor on the output voltage. PGOOD will go low if the output voltage exceeds 110% or
goes below 80% of its nominal.
12 LDELAY A capacitor between this pin to ground sets the delay from the output voltage reaches 80% of its
nominal to when the undervoltage latch protection is enabled and PGOOD pin goes low.
13 AGND Low-noise analog ground.
14-16 PGND Power ground.
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