ETA9740

www.etasolution.com

4

Powering Minds of the Smart

In BOOST MODE

APPLICATION SUPPORT

Please contact local distributor or ETA sales representatives for technical support.

PCB GUIDELINES

0

0.5

1

1.5

2

2.5

0

1

2

3

4

5

6

Iout (A)

Vout Vs. Iout

Vin=3.3V

Vin=3.6V

Vin=4.0V

Vin=4.35V

0

0.5

1

1.5

2

2.5

70%

75%

80%

85%

90%

95%

100%

Iout (A)

Efficiency Vs. Iout

Vin=3.3V

Vin=3.6V

Vin=4.0V

Vin=4.35V

Please have CIN, COUT, and L placed just next to the IC pins so that the power traces are kept to the shortest to achieve

a good performance of ETA9740 and good EMI.

Have CBAT and CUSB placed close to the IC pins and connected to AGND to ensure a clean AGND.