LM25066APSQE/NOPB National Semiconductor, LM25066APSQE/NOPB Datasheet - Page 26

• Manufacturer Part Number: LM25066APSQE/NOPB
• Description: IC CTLR PM HOTSWAP 24-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM25066APSQE/NOPB

• Applications: Base Station-Networking Line Cards, Servers
• Current - Supply: 5.8mA
• Voltage - Supply: 2.9 V ~ 17 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Input Voltage: 17V
• Internal Switch: No
• Supply Voltage Range: 2.9V To 5.5V
• Rohs Compliant: Yes
• Digital Ic Case Style: LLP
• No. Of Pins: 24
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM25066APSQE/NOPBTR

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- The high current path from the board’s input to the load (via
Q
other to minimize parasitic loop inductance.
- The ground connections for the various components around
the LM25066A should be connected directly to each other and
to the LM25066A’s GND pin and then connected to the sys-
tem ground at one point. Do not connect the various compo-
nent grounds to each other through the high current ground
line. For more details, see application note AN-2100.
- Provide adequate heat sinking for the series pass device
(Q
1
1
) and the return path should be parallel and close to each
) to help reduce stresses during turn-on and turn-off.
FIGURE 17. Recommended Board Connector Design
26
- The board’s edge connector can be designed such that the
LM25066A detects via the UVLO/EN pin that the board is be-
ing removed and responds by turning off the load before the
supply voltage is disconnected. For example, in
voltage at the UVLO/EN pin goes to ground before V
removed from the LM25066A becasue of the shorter edge
connector pin. When the board is inserted into the edge con-
nector, the system voltage is applied to the LM25066A’s VIN
pin before the UVLO voltage is taken high, thereby allowing
the LM25066A to turn on the output in a controlled fashion.
30146053
Figure
17, the
SYS
is