LM2597M-5.0/NOPB National Semiconductor, LM2597M-5.0/NOPB Datasheet - Page 15

• Manufacturer Part Number: LM2597M-5.0/NOPB
• Description: IC REG SIMPLE SWITCHER 8-SOIC
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2597M-5.0/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 500mA
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 5V
• Output Current: 500mA
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 4.5V To 40V
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Input Voltage Primary Max: 40V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2597M-5.0; *LM2597M-5.0/NOPB; LM2597M-5.0

LM2597/LM2597HV Series Buck Regulator Design Procedure (Adjustable
Output)
Voltage
Output
1.2
1 2
1 5
2 4
2 8
(V)
4
6
9
(Continued)
HFQ Series
Panasonic
220/25
180/25
(µF/V)
82/25
82/25
82/25
82/25
82/50
82/50
FIGURE 2. Output Capacitor and Feedforward Capacitor Selection Table
Through Hole Output Capacitor
Nichicon PL
Series
220/25
180/25
120/50
120/50
(µF/V)
82/25
82/25
82/25
82/25
Feedforward
Capacitor
820 pF
4.7 nF
4.7 nF
3.3 nF
2.2 nF
1.5 nF
1 nF
0
15
AVX TPS
220/10
100/10
100/10
100/16
100/16
Series
(µF/V)
68/20
10/35
10/35
Surface Mount Output Capacitor
595D Series
Sprague
220/10
120/10
120/10
100/16
100/16
100/20
(µF/V)
15/35
15/35
Feedforward
Capacitor
220 pF
220 pF
4.7 nF
4.7 nF
3.3 nF
2.2 nF
1.5 nF
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