LM2614ATLX NSC [National Semiconductor], LM2614ATLX Datasheet - Page 12

• Manufacturer Part Number: LM2614ATLX
• Description: 400mA Sub-Miniature Adjustable DC-DC Converter Optimized for RF Power Amplifiers
• Manufacturer: NSC [National Semiconductor]

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Device Information
VCON Transient Response in Dropout
VCON Transient Response
(Circuit in Figure 4)
(Circuit in Figure 4)
FIGURE 8.
FIGURE 9.
(Continued)
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SOFT-START
The LM2614 has soft start to reduce current inrush during
power-up and startup. This reduces stress on the LM2614
and external components. It also reduces startup transients
on the power source. Soft start is implemented by ramping
up the reference input to the error amplifier of the LM2614 to
gradually increase the output voltage.
THERMAL SHUTDOWN PROTECTION
The LM2614 has a thermal shutdown protection function to
protect itself from short-term misuse and overload condi-
tions. When the junction temperature exceeds 150˚C the
device turns off the output stage and when the temperature
drops below 130˚C it initiates a soft start cycle. Prolonged
operation in thermal shutdown conditions may damage the
device and is considered bad practice.
Load Transient Response
Line Transient Response
(Circuit in Figure 3)
(Circuit in Figure 3)
FIGURE 10.
FIGURE 11.
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