LM2585T-3.3/NOPB National Semiconductor, LM2585T-3.3/NOPB Datasheet - Page 10

• Manufacturer Part Number: LM2585T-3.3/NOPB
• Description: IC MULTI CONFIG 3.3V 3A TO220-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Up (Boost), Flyback, Forward Converterr

Specifications of LM2585T-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 3A
• Frequency - Switching: 100kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Bent and Staggered Leads)
• Input Voltage: 40V
• Output Current: 3A
• Output Voltage: 3.3V
• No. Of Outputs: 1
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 1 - Unlimited
• Filter Terminals: Through Hole
• Rohs Compliant: Yes
• For Use With: 551011367-061 - BOARD WEBENCH LM2577,LM2585/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2585T-3.3; *LM2585T-3.3/NOPB; LM2585T-3.3

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Test Circuits
C
C
T—22 μH, 1:1 Schott #67141450
D—1N5820
C
C
R
C
C
L—15 μH, Renco #RL-5472-5
D—1N5820
C
C
R
For 12V Devices: R
For ADJ Devices: R
IN1
IN2
OUT
C
C
IN1
IN2
OUT
C
C
—0.47 μF Ceramic
—2k
—0.47 μF Ceramic
—2k
—100 μF, 25V Aluminum Electrolytic
—0.1 μF Ceramic
—100 μF, 25V Aluminum Electrolytic
—0.1 μF Ceramic
—680 μF, 16V Aluminum Electrolytic
—680 μF, 16V Aluminum Electrolytic
1
1
= Short (0Ω) and R
= 48.75k, ±0.1% and R2 = 5.62k, ±1%
2
= Open
FIGURE 3. LM2585-12 and LM2585-ADJ
FIGURE 2. LM2585-3.3 and LM2585-5.0
10
1251519
1251520