LM5117PMH/NOPB National Semiconductor, LM5117PMH/NOPB Datasheet - Page 22

• Manufacturer Part Number: LM5117PMH/NOPB
• Description: IC BUCK CONTROLLER 20-TSSOP
• Manufacturer: National Semiconductor
• Series: -r

Specifications of LM5117PMH/NOPB

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 530kHz
• Duty Cycle: 95%
• Voltage - Supply: 5.5 V ~ 65 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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Cross Over
Frequency
(Open Loop
Bandwidth)
Maximum
Cross Over
Frequency
* Comprehensive Equation includes an inductor pole and a gain peaking at f
that a ceramic capacitor C
OUT2
SIMPLE FORMULA
(No ESR) is connected in parallel with C
The frequency at which 45° phase shift occurs in modulator phase charac-
teristics.
OUT1
. R
SW
22
/2, which caused by sampling effect of the current mode control. Also it assumes
ESR1
represents ESR of C
COMPREHENSIVE FORMULA*
OUT1
.