LM2611BMF/NOPB National Semiconductor, LM2611BMF/NOPB Datasheet - Page 9

• Manufacturer Part Number: LM2611BMF/NOPB
• Description: IC CONVERTER CUK SOT-23-5
• Manufacturer: National Semiconductor
• Type: Cukr

Specifications of LM2611BMF/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to -36V
• Current - Output: 300mA
• Frequency - Switching: 1.4MHz
• Voltage - Input: 2.7 ~ 14 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Power - Output: 2W
• 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
• Msl: MSL 1 - Unlimited
• Filter Terminals: SMD
• Rohs Compliant: Yes
• For Use With: LM2611EVAL - BOARD EVALUATION LM2611
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM2611BMF; LM2611BMFTR

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.
20018123
www.national.com