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LM2653 Datasheet(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LM2653
Descripción Electrónicos  1.5A High Efficiency Synchronous Switching Regulator
Download  12 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2653 Datasheet(HTML) 6 Page - National Semiconductor (TI)

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Connection Diagram
16-Lead TSSOP (MTC)
10104914
Top View
Order Number LM2653MTC-ADJ
See NS Package Number MTC16
Pin Description
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.
6V
CB
Bootstrap capacitor connection for high-side gate drive.
7AV
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.
www.national.com
6


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