AS3728 datasheet(9/19 Pages) AMSOSRAM

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[v1-03] 2015-Aug-31

AS3728 − Typical Operating Characteristics

Figure 9:

Efficiency vs. Output Current

Figure 10:

Efficiency vs. Output Current

AS3728 Step Down DCDC: Shows the

Efficiency vs. Output Current for various

switching frequencies with VOUT = 1.2V,

VIN = 5V, TAMB = 25°C and TDK coil

SPM5030

AS3728 Step Down DCDC: Shows the

Efficiency vs. Output Current for various

coil types with a switching frequency of

1.35MHz, VOUT = 1.2V, VIN = 5V,

TAMB = 25°C

0.01

0.1

Output Current (A)

AS3728 5V-1.2V SPM5030 0.35uH 3.9mΩ combined (1.35MHz)

AS3728 5V-1.2V SPM5030 0.35uH 3.9mΩ combined (0.675MHz)

AS3728 5V-1.2V SPM5030 0.35uH 3.9mΩ combined (2.7MHz)

AS3728 5V-1.2V SPM5030 0.75uH 8.5mΩ combined (1.35MHz)

AS3728 5V-1.2V SPM5030 0.75uH 8.5mΩ combined (0.675MHz)

AS3728 5V-1.2V SPM5030 0.75uH 8.5mΩ combined (2.7MHz)

0.01

0.1

Output Current (A)

AS3728 5V-1.2V SPM5030 0.75uH 8.5mΩ combined (1.35MHz)

AS3728 5V-1.2V XFL4015 0.47uH 7.6mΩ combined (1.35MHz)

AS3728 5V-1.2V SPM4015 0.68uH 24.5mΩ combined (1.35MHz)

AS3728 5V-1.2V SPM5030 0.35uH 3.9mΩ combined (1.35MHz)

AS3728 5V-1.2V SPM4015 0.68uH 24.5mΩ (1.35MHz)

AS3728 Scheda tecnica(PDF) 9 Page - ams-OSRAM AG