LM2675M-12 National Semiconductor, LM2675M-12 Datasheet - Page 7

• Manufacturer Part Number: LM2675M-12
• Description: DC/DC Converter IC
• Manufacturer: National Semiconductor

Specifications of LM2675M-12

• Input Voltage: 40V
• Output Current: 1A
• Output Voltage: 12V
• No. Of Pins: 8
• Mounting Type: Surface Mount
• Voltage Regulator Type: Switching
• Output Current Max: 1A
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Performance Characteristics
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 1A Load Pulse
Test Circuit and Layout Guidelines
C
C
D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F
L1 - 68 µH Sumida # RCR110D-680L
C
IN
OUT
B
- 0.01 µF, 50V Ceramic
- 22 µF, 50V Tantalum, Sprague “199D Series”
Load Transient Response for Continuous Mode
- 47 µF, 25V Tantalum, Sprague “595D Series”
L = 47 µH, C
V
Horizontal Time Base: 50 µs/div
IN
= 20V, V
OUT
= 68 µF, C
OUT
= 5V, I
FIGURE 2. Standard Test Circuits and Layout Guides
OUT
LOAD
ESR = 50 m
= 1A
Fixed Output Voltage Versions
DS012803-20
(Circuit of Figure 2 ) (Continued)
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 100 mA to 400 mA Load Pulse
7
Load Transient Response for Discontinuous Mode
L = 47 µH, C
Horizontal Time Base: 200 µs/div
V
OUT
IN
= 20V, V
= 68 µF, C
OUT
OUT
= 5V,
ESR = 50 m
DS012803-21
DS012803-22
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