551011367-021 National Semiconductor, 551011367-021 Datasheet - Page 15

• Manufacturer Part Number: 551011367-021
• Description: BOARD WEBENCH BUILD IT LM2599
• Manufacturer: National Semiconductor
• Series: WEBENCH® Buildit Boardr

Specifications of 551011367-021

• Main Purpose: DC/DC, Step Down
• Regulator Topology: Buck
• Board Type: Bare (Unpopulated)
• Utilized Ic / Part: LM2599
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Current - Output: -
• Voltage - Output: -
• Voltage - Input: -
• Power - Output: -
• Frequency - Switching: -
• Outputs And Type: -
• Other names: *551011367-021

LM2599 Series Buck Regulator Design Procedure (Adjustable Output)
LM2599 Series Buck Regulator Design Procedure
INDUCTOR VALUE SELECTION GUIDES (For Continuous Mode Operation)
Voltage
(Continued)
Output
1 2
1 5
2 4
2 8
(V)
2
4
6
9
HFQ Series
Panasonic
820/35
560/35
470/25
330/25
330/25
220/35
220/35
100/50
(µF/V)
FIGURE 4. LM2599-3.3
FIGURE 5. LM2599-5.0
Through Hole Output Capacitor
FIGURE 3. Output Capacitor and Feedforward Capacitor Selection Table
Nichicon PL
Series
820/35
470/35
470/25
330/25
330/25
220/35
150/35
100/50
(µF/V)
DS012582-27
DS012582-26
Feedforward
Capacitor
680 pF
560 pF
390 pF
3.3 nF
1.5 nF
33 nF
10 nF
1 nF
15
AVX TPS
330/6.3
330/6.3
Series
220/10
100/16
100/16
(µF/V)
68/20
33/25
10/35
Surface Mount Output Capacitor
FIGURE 7. LM2599-ADJ
FIGURE 6. LM2599-12
595D Series
Sprague
390/6.3
330/10
180/16
180/16
120/20
(µF/V)
470/4
33/25
15/50
Feedforward
Capacitor
DS012582-28
DS012582-29
680 pF
220 pF
220 pF
3.3 nF
1.5 nF
33 nF
10 nF
1 nF
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