lm21215a-1 National Semiconductor Corporation, lm21215a-1 Datasheet - Page 7

• Manufacturer Part Number: lm21215a-1
• Description: 15a High Efficiency Synchronous Buck Regulator With Frequency Synchronization
• Manufacturer: National Semiconductor Corporation

19.6
19.5
19.4
19.3
19.2
19.1
19.0
18.9
18.8
18.7
Peak Current Limit vs. Temperature
Minimum On-Time vs. Temperature
160
156
152
148
144
140
136
132
128
124
120
-40 -20
-40 -20
JUNCTION TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
SYNC Signal Acquired
0
0
10 µs/DIV
20
20
40
40
60
60
80 100 120
80 100 120
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7
10
FET Resistance vs. Temperature
9
8
7
6
5
4
3
2
-40 -20
Load Transient Response
JUNCTION TEMPERATURE (°C)
SYNC Signal Lost
LOW SIDE
HIGH SIDE
100 µs/DIV
0
4 µs/DIV
20
40
60
80 100 120
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