SM72485X/NOPB National Semiconductor, SM72485X/NOPB Datasheet - Page 11

• Manufacturer Part Number: SM72485X/NOPB
• Description: IC BUCK SWITCH 100V REG 8-LLP
• Manufacturer: National Semiconductor
• Series: SolarMagic™r
• Type: Step-Down (Buck)r

Specifications of SM72485X/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 2.5V
• Current - Output: 150mA
• Frequency - Switching: 50kHz ~ 1.1MHz
• Voltage - Input: 6 V ~ 95 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Bill of Materials
Item
R
R
R
C1
C2
C3
C4
C5
D1
R3
U1
L1
R
FB2
FB1
CL
T
Schottky Power Diode
Switching Regulator
Ceramic Capacitor
Ceramic Capacitor
Ceramic Capacitor
Ceramic Capacitor
Ceramic Capacitor
Power Inductor
Description
Resistor
Resistor
Resistor
Resistor
Resistor
FIGURE 4. SM72485 Example Circuit
National Semiconductor SM72485
COILTRONICS DR125-221-R, or
11
TDK SLF10145T-221MR65
Kemet C1206C474K5RAC
Kemet C1206C103K5RAC
Vishay CRCW12063R30F
Vishay CRCW12063011F
Vishay CRCW12061001F
Vishay CRCW12063093F
Vishay CRCW12063163F
TDK C4532X7R2A105M
TDK C4532X7R1E226M
TDK C3216X7R2A104M
Diodes Inc. DFLS1100
Part Number
0.47 µF, 50V
0.01 µF, 50V
0.1 µF, 100V
1 µF, 100V
22 µF, 25V
100V, 1A
3.01 kΩ
220 µH
309 kΩ
316 kΩ
1.0 kΩ
Value
3.3 Ω
30142318
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