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[v1-11] 2015-Jan-28

AS1310 − Application Information

Component Selection

Only four components are required to complete the design of

the step-up converter. The low peak currents of the AS1310

allow the use of low value, low profile inductors and tiny

external ceramic capacitors.

Inductor Selection

For best efficiency, choose an inductor with high frequency core

material, such as ferrite, to reduce core losses. The inductor

should have low DCR (DC resistance) to reduce the I²R losses,

and must be able to handle the peak inductor current without

saturating. A 6.8μH inductor with a >500mA current rating and

<500m

Ω DCR is recommended.

Figure 22:

Recommended Inductors

Part Number

DCR

Current

Rating

Dimensions

(L/W/T)

Manufacturer

XPL2010-682M

6.8μH

421m

0.62A

2.0x1.9x1.0 mm

Coilcraft

www.coilcraft.com

EPL2014-682M

6.8μH

287m

0.59A

2.0x2.0x1.4 mm

LPS3015-682M

6.8μH

300m

0.86A

3.0x3.0x1.5 mm

LPS3314-682M

6.8μH

240m

0.9A

3.3x3.3x1.3 mm

LPS4018-682M

6.8μH

150m

1.3A

3.9x3.9x1.7 mm

XPL7030-682M

6.8μH

59m

9.4A

7.0x7.0x3.0 mm

LQH32CN6R8M53L

6.8μH

250m

0.54A

3.2x2.5x1.55 mm

Murata

www.murata.com

LQH3NPN6R8NJ0L

6.8μH

210m

0.7A

3.0x3.0x1.1 mm

LQH44PN6R8MJ0L

6.8μH

143m

0.72A

4.0x4.0x1.1 mm

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