LM3485
Typical Performance Characteristics
Efficiency vs Load Current
(V
OUT
= 5.0V, L = 22µH)
Unless otherwise specified, T
J
= 25˚C (Continued)
Start Up
20034620
20034631
Continuous Mode Operation
(V
IN
= 12V, V
OUT
= 3.3 V, I
OUT
= 500mA, L = 22µH)
Discontinuous Mode Operation
(V
IN
= 12V, V
OUT
=3.3 V, I
OUT
= 50mA, L = 22µH)
20034615
20034616
(V
OUT
Operating Frequency vs Input Voltage
= 3.3V, I
OUT
= 1A, C
OUT(ESR)
= 80mΩ, C
ff
= 100pF)
(V
OUT
Output Ripple Voltage vs Input Voltage
= 3.3V, I
OUT
= 1A, C
OUT(ESR)
= 80mΩ, C
ff
= 100pF)
20034613
20034643
7
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