SC2545TSTRT View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

SC2545TSTRT

High Performance Wide Input Range Dual Synchronous Buck Controller

Semtech Corporation 

POWER MANAGEMENT

Typical Characteristics (Cont.)

100%

V in=8V

V in=16V

80%

60%

40%

20%

0%

0 1 2 3 4 5 6 7 8 9 10

Io( A )

Efficiency Curve for Vout=3.3V.

SC2545

190

188

186

184

182

180

178

-40 -10 20

50

80 110

Temperature (Degree C)

Freq. vs. Temp. ( Rosc=75kohm, Vin=16V).

350

300

250

200

150

100

50

Rosc(KOHM)

Operating frequency vs. Rosc.

10.5

10.3

10.1

9.9

9.7

9.5

10 12 14 16 18 20 22 24 26 28 30

Vin (V)

Vcc vs. Vin ( Ta=25 Degree C).

9

8

7

6

5

4

4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5

RILIM(KOHM)

RILIM vs. OCP (Vi=12V).

10.13

10.11

10.09

10.07

10.05

10.03

-40 -20 0

20 40 60

Tj (Degree C)

80 100 120

Vcc vs. Temp.

© 2005 Semtech Corp.

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