SC613EVB View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

SC613EVB

Low Noise Regulated Charge Pump with Selectable Output

Semtech Corporation 

POWER MANAGEMENT

Applications Information (cont.)

Table 2 -Ripple Performance

T

A

=

25°C,

Cin=Cout=Cbucket

=

1.0µF

(ESR

=

0.1Ω)

Ouput Ripple

VOUT

Freq.

[kHz]

[mVp-p]

at 100mA and

Vin= 3.2V to 5.5V

262

25

5.0V

650

15

262

25

4.5V

650

15

Calculating Power Dissipation

The power dissipated by the SC613 is calculated as,

P D = P IN − P OUT

( ) P D = V IN ⋅ 2⋅I O + I Q − V O ⋅I O

Short Circuit and Over Temperature Protection

The output is current limited to 600mA to protect against short

circuit conditions. Over temperature protection is also provided.

Design and Layout Considerations

The center pad “thermal slug” is not internally connected to ground,

but should be connected to ground in the layout through vias con-

necting to the ground plane. Pin 8 can be routed directly to the

center pad. A good ground plane connection is important to make

effective use of the low thermal resistance of the MLP package.

Short Circuit and Over Temperature Protection

The output is current limited to 600mA to protect against short

circuit conditions. Over temperature protection is also provided.

Design and Layout Considerations

The center pad “thermal slug” is not internally connected to ground,

but should be connected to ground in the layout through vias con-

necting to the ground plane. Pin 8 can be routed directly to the

center pad. A good ground plane connection is important to make

effective use of the low thermal resistance of the MLP package.

 2005 Semtech Corp.

6

SC613

www.semtech.com

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