Power Products - National Semiconductor - #29

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Inductive Buck Controllers (V|Nmax <7V)
Switching Controllers for Non-Isolated Buck Topologies
VIN
Vout
Options Vout
Product (Adj Accuracy Iout FSW
ID Min Max Range) (%) (A) (kHz) Mode
Shut- Soft-down J Start J
Synchronous Rectification
Power Good
less 'sense
Total # of Regulators
Other Features/ Comments
Single Switching Controllers
2.8
5
Down
2
4
300 to
COT
to 0.8
1000
2.8
5.5
Down
2
6
300 to
COT
to 0.8
1000
4.65
5.5
0.8375
0.9
100
300
Voltage
LM1770 LM1771 LM27262
No compensation required
No compensation required
Complies with Intel's VRD10 spec. 6-bit VID. 2, 3, or 4 phase operation, soft-stop
✓ ✓
to 1.60
29
power.national.com

pageCatalog pdf di En 2012-05-22-31