LM2611BMF National Semiconductor, LM2611BMF Datasheet - Page 9

• Manufacturer Part Number: LM2611BMF
• Description: IC, PWM INVERTING SWITCHING REG, SOT23-5
• Manufacturer: National Semiconductor

Specifications of LM2611BMF

• Primary Input Voltage: 5V
• No. Of Outputs: 1
• Output Voltage: -36V
• Output Current: 1A
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 2.7V To 14V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Operation
Thermal Shutdown
If the junction temperature of the LM2611 exceeds 163˚C, it
will enter thermal shutdown. In thermal shutdown, the part
deactivates the driver and the switch turns off. The switch
(Continued)
FIGURE 8. At low loads, the LM2611 enters a
pulse-skipping mode. The output ripple
slightly increases in this mode.
9
remains off until the junction temperature drops to 155˚C, at
which point the part begins switching again. It will typically
take 10ms for the junction temperature to drop from 163˚C to
155˚C with the switch off.
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